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Zhou P, Zhou H, Xia Y, Feng Q, Kong X, Hou WH, Ou Y, Song X, Zhou HY, Zhang W, Lu Y, Liu F, Cao Q, Liu H, Yan S, Liu K. Rational Lithium Salt Molecule Tuning for Fast Charging/Discharging Lithium Metal Battery. Angew Chem Int Ed Engl 2024; 63:e202316717. [PMID: 38477147 DOI: 10.1002/anie.202316717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 02/27/2024] [Accepted: 03/12/2024] [Indexed: 03/14/2024]
Abstract
The electrolytes for lithium metal batteries (LMBs) are plagued by a low Li+ transference number (T+) of conventional lithium salts and inability to form a stable solid electrolyte interphase (SEI). Here, we synthesized a self-folded lithium salt, lithium 2-[2-(2-methoxy ethoxy)ethoxy]ethanesulfonyl(trifluoromethanesulfonyl) imide (LiETFSI), and comparatively studied with its structure analogue, lithium 1,1,1-trifluoro-N-[2-[2-(2-methoxyethoxy)ethoxy)]ethyl]methanesulfonamide (LiFEA). The special anion chemistry imparts the following new characteristics: i) In both LiFEA and LiETFSI, the ethylene oxide moiety efficiently captures Li+, resulting in a self-folded structure and high T+ around 0.8. ii) For LiFEA, a Li-N bond (2.069 Å) is revealed by single crystal X-ray diffraction, indicating that the FEA anion possesses a high donor number (DN) and thus an intensive interphase "self-cleaning" function for an ultra-thin and compact SEI. iii) Starting from LiFEA, an electron-withdrawing sulfone group is introduced near the N atom. The distance of Li-N is tuned from 2.069 Å in LiFEA to 4.367 Å in LiETFSI. This alteration enhances ionic separation, achieves a more balanced DN, and tunes the self-cleaning intensity for a reinforced SEI. Consequently, the fast charging/discharging capability of LMBs is progressively improved. This rationally tuned anion chemistry reshapes the interactions among Li+, anions, and solvents, presenting new prospects for advanced LMBs.
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Affiliation(s)
- Pan Zhou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Haiyu Zhou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yingchun Xia
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Qingqing Feng
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Xian Kong
- South China Advanced Institute for Soft Matter Science and Technology, School of Emergent Soft Matter, South China University of Technology, 510006, Guangzhou, China
| | - Wen-Hui Hou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yu Ou
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Xuan Song
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Hang-Yu Zhou
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Weili Zhang
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Yang Lu
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Fengxiang Liu
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Qingbin Cao
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Hao Liu
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Shuaishuai Yan
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
| | - Kai Liu
- Hefei institute for Public Safety Research, Tsinghua University, 230601, Hefei, China
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2
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Chen Q, Qin S, Zhou HY, Deng YQ, Shi PD, Zhao H, Li XF, Huang XY, Wu YR, Guo Y, Pei GQ, Wang YF, Sun SQ, Du ZM, Cui YJ, Fan H, Qin CF. Competitive fitness and homologous recombination of SARS-CoV-2 variants of concern. J Med Virol 2023; 95:e29278. [PMID: 38088537 DOI: 10.1002/jmv.29278] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/26/2023] [Accepted: 11/11/2023] [Indexed: 12/18/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants continue to emerge and cocirculate in humans and wild animals. The factors driving the emergence and replacement of novel variants and recombinants remain incompletely understood. Herein, we comprehensively characterized the competitive fitness of SARS-CoV-2 wild type (WT) and three variants of concern (VOCs), Alpha, Beta and Delta, by coinfection and serial passaging assays in different susceptible cells. Deep sequencing analyses revealed cell-specific competitive fitness: the Beta variant showed enhanced replication fitness during serial passage in Caco-2 cells, whereas the WT and Alpha variant showed elevated fitness in Vero E6 cells. Interestingly, a high level of neutralizing antibody sped up competition and completely reshaped the fitness advantages of different variants. More importantly, single clone purification identified a significant proportion of homologous recombinants that emerged during the passage history, and immune pressure reduced the frequency of recombination. Interestingly, a recombination hot region located between nucleotide sites 22,995 and 28,866 of the viral genomes could be identified in most of the detected recombinants. Our study not only profiled the variable competitive fitness of SARS-CoV-2 under different conditions, but also provided direct experimental evidence of homologous recombination between SARS-CoV-2 viruses, as well as a model for investigating SARS-CoV-2 recombination.
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Affiliation(s)
- Qi Chen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Si Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Hang-Yu Zhou
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yong-Qiang Deng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Pan-Deng Shi
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Hui Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Xiao-Feng Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Xing-Yao Huang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Ya-Rong Wu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Yan Guo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Guang-Qian Pei
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Yun-Fei Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Si-Qi Sun
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Zong-Min Du
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Yu-Jun Cui
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Hang Fan
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
- Research Unit of Discovery and Tracing of Natural Focus Diseases, Chinese Academy of Medical Sciences, Beijing, China
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3
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Song GY, Huang XY, He MJ, Zhou HY, Li RT, Tian Y, Wang Y, Cheng ML, Chen X, Zhang RR, Zhou C, Zhou J, Fang XY, Li XF, Qin CF. A single amino acid substitution in the capsid protein of Zika virus contributes to a neurovirulent phenotype. Nat Commun 2023; 14:6832. [PMID: 37884553 PMCID: PMC10603150 DOI: 10.1038/s41467-023-42676-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
Increasing evidence shows the African lineage Zika virus (ZIKV) displays a more severe neurovirulence compared to the Asian ZIKV. However, viral determinants and the underlying mechanisms of enhanced virulence phenotype remain largely unknown. Herein, we identify a panel of amino acid substitutions that are unique to the African lineage of ZIKVs compared to the Asian lineage by phylogenetic analysis and sequence alignment. We then utilize reverse genetic technology to generate recombinant ZIKVs incorporating these lineage-specific substitutions based on an infectious cDNA clone of Asian ZIKV. Through in vitro characterization, we discover a mutant virus with a lysine to arginine substitution at position 101 of capsid (C) protein (termed K101R) displays a larger plaque phenotype, and replicates more efficiently in various cell lines. Moreover, K101R replicates more efficiently in mouse brains and induces stronger inflammatory responses than the wild type (WT) virus in neonatal mice. Finally, a combined analysis reveals the K101R substitution promotes the production of mature C protein without affecting its binding to viral RNA. Our study identifies the role of K101R substitution in the C protein in contributing to the enhanced virulent phenotype of the African lineage ZIKV, which expands our understanding of the complexity of ZIKV proteins.
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Affiliation(s)
- Guang-Yuan Song
- School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, Anhui, China
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Xing-Yao Huang
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Meng-Jiao He
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Hang-Yu Zhou
- Suzhou Institute of System Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, 215123, Suzhou, Jiangsu, China
| | - Rui-Ting Li
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Ying Tian
- School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, Anhui, China
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Yan Wang
- Beijing Advanced Innovation Center for Structural Biology, School of Life Sciences, Tsinghua University, 100084, Beijing, China
| | - Meng-Li Cheng
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Xiang Chen
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Rong-Rong Zhang
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Chao Zhou
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Jia Zhou
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China
| | - Xian-Yang Fang
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, 100101, Beijing, China
| | - Xiao-Feng Li
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China.
| | - Cheng-Feng Qin
- School of Basic Medical Sciences, Anhui Medical University, 230032, Hefei, Anhui, China.
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, 100071, Beijing, China.
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4
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Wang XM, Zhou Y, Zhang JL, Zhou HY, Zhang Q, Sun Q, Li HJ, Xu LY, Yao SN, Yao ZH, Yan DM, Xu KL, Sang W. [Allogeneic hematopoietic stem cell transplantation combined with CD7 CAR-T for the treatment of T lymphoblastic lymphoma: a case report and literature review]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:864-865. [PMID: 38049342 PMCID: PMC10694072 DOI: 10.3760/cma.j.issn.0253-2727.2023.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Indexed: 12/06/2023]
Affiliation(s)
- X M Wang
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
| | - Y Zhou
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
| | - J L Zhang
- Department of Rehabilitation, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - H Y Zhou
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
| | - Q Zhang
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
| | - Q Sun
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
| | - H J Li
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
| | - L Y Xu
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
| | - S N Yao
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450000, China
| | - Z H Yao
- Department of Internal Medicine, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou 450000, China
| | - D M Yan
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
| | - K L Xu
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
| | - W Sang
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Blood Diseases Institute, Key Laboratory of Bone Marrow Stem Cell, Xuzhou 221000, China
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5
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Yan S, Liu F, Ou Y, Zhou HY, Lu Y, Hou W, Cao Q, Liu H, Zhou P, Liu K. Asymmetric Trihalogenated Aromatic Lithium Salt Induced Lithium Halide Rich Interface for Stable Cycling of All-Solid-State Lithium Batteries. ACS Nano 2023; 17:19398-19409. [PMID: 37781911 DOI: 10.1021/acsnano.3c07246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Solid polymer electrolytes (SPEs) are the key components for all-solid-state lithium metal batteries with high energy density and intrinsic safety. However, the low lithium ion transference number (t+) of a conventional SPE and its unstable electrolyte/electrode interface cannot guarantee long-term stable operation. Herein, asymmetric trihalogenated aromatic lithium salts, i.e., lithium (3,4,5-trifluorobenzenesulfonyl)(trifluoromethanesulfonyl)imide (LiFFF) and lithium (4-bromo-3,5-difluorobenzenesulfonyl)(trifluoromethanesulfonyl)imide (LiFBF), are synthesized for polymer electrolytes. They exhibit higher t+ values and better compatibility with Li metal than conventional lithium bis(trifluoromethanesulfonyl) imide (LiTFSI). Due to the trihalogenated aromatic anions, LiFFF- and LiFBF-based electrolytes are prone to generate an LiF- and LiBr-rich solid electrolyte interphase (SEI), therefore increasing the stability of the solid electrolyte/anode interface. Particularly, LiFBF could induce a LiF/LiBr hybrid SEI, where LiF shows a high Young's modulus and high surface energy for homogenizing Li ion flux and LiBr exhibits an extremely low Li ion diffusion barrier in the SEI layer. As a result, the Li/Li symmetric cells could remain stable for more than 1200 h without a short circuit and the LiFePO4/Li batteries showed superb electrochemical performance over 1200 cycles at 1 C. This work provides valuable insights from the perspective of lithium salt molecular structures for high-performance all-solid-state lithium metal batteries.
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Affiliation(s)
- Shuaishuai Yan
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Fengxiang Liu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yu Ou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hang-Yu Zhou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
- National Academy of Safety Science and Engineering, China Academy of Safety Science and Technology, Beijing 100012, People's Republic ofChina
| | - Yang Lu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Wenhui Hou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Qingbin Cao
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hao Liu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Pan Zhou
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Kai Liu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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Zhou P, Hou W, Xia Y, Ou Y, Zhou HY, Zhang W, Lu Y, Song X, Liu F, Cao Q, Liu H, Yan S, Liu K. Tuning and Balancing the Donor Number of Lithium Salts and Solvents for High-Performance Li Metal Anode. ACS Nano 2023; 17:17169-17179. [PMID: 37655688 DOI: 10.1021/acsnano.3c05016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The low reversibility of Li deposition/stripping in conventional carbonate electrolytes hinders the development of lithium metal batteries. Herein, we proposed a combination of solvents with a moderate donor number (DN) and LiNO3 as the sole salt, which has rarely been attempted due to its low solubility or dissociation degree in common solvents. It is found that the DN value of solvents is highly correlated to the reversibility of Li deposition behavior when LiNO3 is applied as the sole salt. The combination of LiNO3 and solvents with moderate DN behaves like a quasi-concentrated electrolyte even at a common or moderate concentration, while neither the solvents with poor solubility and low dissociation for LiNO3 (which usually corresponds to a low DN) nor the solvents with high dissociation for LiNO3 (which usually corresponds to an overly high DN) can achieve a high reversibility for low conductivity or excessive solvent decomposition. As a result, a Coulombic efficiency as high as 99.6% for Li deposition/stripping is achieved with the optimized combination. We believe this work will give a better understanding of the role of anions and solvents in the regulation of the solvation structure, and DN can be utilized as an important guideline to sieve suitable solvents for LiNO3 as the main salt to exhibit intriguing properties beyond traditional cognition.
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Affiliation(s)
- Pan Zhou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Wenhui Hou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yingchun Xia
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yu Ou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hang-Yu Zhou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Weili Zhang
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yang Lu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Xuan Song
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Fengxiang Liu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Qingbin Cao
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hao Liu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Shuaishuai Yan
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Kai Liu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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7
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Wu H, Huang XY, Sun MX, Wang Y, Zhou HY, Tian Y, He B, Li K, Li DY, Wu AP, Wang H, Qin CF. Zika virus targets human trophoblast stem cells and prevents syncytialization in placental trophoblast organoids. Nat Commun 2023; 14:5541. [PMID: 37684223 PMCID: PMC10491779 DOI: 10.1038/s41467-023-41158-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Zika virus (ZIKV) infection during pregnancy threatens pregnancy and fetal health. However, the infectivity and pathological effects of ZIKV on placental trophoblast progenitor cells in early human embryos remain largely unknown. Here, using human trophoblast stem cells (hTSCs), we demonstrated that hTSCs were permissive to ZIKV infection, and resistance to ZIKV increased with hTSC differentiation. Combining gene knockout and transcriptome analysis, we demonstrated that the intrinsic expression of AXL and TIM-1, and the absence of potent interferon (IFN)-stimulated genes (ISGs) and IFNs contributed to the high sensitivity of hTSCs to ZIKV. Furthermore, using our newly developed hTSC-derived trophoblast organoid (hTSC-organoid), we demonstrated that ZIKV infection disrupted the structure of mature hTSC-organoids and inhibited syncytialization. Single-cell RNA sequencing (scRNA-seq) further demonstrated that ZIKV infection of hTSC-organoids disrupted the stemness of hTSCs and the proliferation of cytotrophoblast cells (CTBs) and probably led to a preeclampsia (PE) phenotype. Overall, our results clearly demonstrate that hTSCs represent the major target cells of ZIKV, and a reduced syncytialization may result from ZIKV infection of early developing placenta. These findings deepen our understanding of the characteristics and consequences of ZIKV infection of hTSCs in early human embryos.
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Affiliation(s)
- Hao Wu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xing-Yao Huang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Meng-Xu Sun
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Yue Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hang-Yu Zhou
- State Key Laboratory of Common Mechanism Research for Major Diseases, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, China
| | - Ying Tian
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Beijia He
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kai Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - De-Yu Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Ai-Ping Wu
- State Key Laboratory of Common Mechanism Research for Major Diseases, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215123, China
| | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China.
- Beijing Institute for Stem Cell and Regenerative Medicine, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China.
- Research Unit of Discovery and Tracing of Natural Focus Diseases, Chinese Academy of Medical Sciences, Beijing, 100071, China.
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Zhou HY, Ou Y, Yan SS, Xie J, Zhou P, Wan L, Xu ZA, Liu FX, Zhang WL, Xia YC, Liu K. Supramolecular Polymer Ion Conductor with Weakened Li Ion Solvation Enables Room Temperature All-Solid-State Lithium Metal Batteries. Angew Chem Int Ed Engl 2023; 62:e202306948. [PMID: 37408357 DOI: 10.1002/anie.202306948] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/05/2023] [Accepted: 07/05/2023] [Indexed: 07/07/2023]
Abstract
Improved durability, enhanced interfacial stability, and room temperature applicability are desirable properties for all-solid-state lithium metal batteries (ASSLMBs), yet these desired properties are rarely achieved simultaneously. Here, in this work, it is noticed that the huge resistance at Li metal/electrolyte interface dominantly impeded the normal cycling of ASSLMBs especially at around room temperature (<30 °C). Accordingly, a supramolecular polymer ion conductor (SPC) with "weak solvation" of Li+ was prepared. Benefiting from the halogen-bonding interaction between the electron-deficient iodine atom (on 1,4-diiodotetrafluorobenzene) and electron-rich oxygen atoms (on ethylene oxide), the O-Li+ coordination was significantly weakened. Therefore, the SPC achieves rapid Li+ transport with high Li+ transference number, and importantly, derives a unique Li2 O-rich SEI with low interfacial resistance on lithium metal surface, therefore enabling stable cycling of ASSLMBs even down to 10 °C. This work is a new exploration of halogen-bonding chemistry in solid polymer electrolyte and highlights the importance of "weak solvation" of Li+ in the solid-state electrolyte for room temperature ASSLMBs.
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Affiliation(s)
- Hang-Yu Zhou
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
- National Academy of Safety Science and Engineering, China Academy of Safety Science and Technology, Beijing, 100012, China
| | - Yu Ou
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Shuai-Shuai Yan
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Jin Xie
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Pan Zhou
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Lei Wan
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Zi-Ang Xu
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Feng-Xiang Liu
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Wei-Li Zhang
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Yin-Chun Xia
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
| | - Kai Liu
- Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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9
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Luo D, Ye Q, Li RT, Zhou HY, Guo JJ, Zhao SQ, Zhang S, Jiang T, Deng YQ, Qin CF. PA-E18G substitution in influenza A virus confers resistance to ZX-7101, a cap-dependent endonuclease inhibitor. Virol Sin 2023; 38:559-567. [PMID: 37290559 PMCID: PMC10436051 DOI: 10.1016/j.virs.2023.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023] Open
Abstract
Cap-dependent endonuclease (CEN) in the polymerase acidic protein (PA) of influenza A virus (IAV) represents a promising drug target due to its critical role in viral gene transcription. The CEN inhibitor, baloxavir marboxil (BXM), was approved in Japan and the US in 2018 and several other countries subsequently. Along with the clinical use of BXM, the emergence and spread of IAV variants with reduced susceptibility to BXM have aroused serious concern. Herein, we comprehensively characterized the in vitro and in vivo antiviral activities of ZX-7101A, an analogue of BXM. The active form of prodrug ZX-7101 showed broad-spectrum antiviral potency against various IAV subtypes, including pH1N1, H3N2, H7N9 and H9N2, in MDCK cells, and the 50% effective concentration (EC50) was calculated to nanomole level and comparable to that of baloxavir acid (BXA), the active form of BXM. Furthermore, in vivo assays showed that administration of ZX-7101A conferred significant protection against lethal pH1N1 challenge in mice, with reduced viral RNA loads and alleviated pulmonary damage. Importantly, serial passaging of H1N1 virus in MDCK cells under selection pressure of ZX-7101 led to a resistant variant at the 15th passage. Reverse genetic and sequencing analysis demonstrated that a single E18G substitution in the PA subunit contributed to the reduced susceptibility to both ZX-7101 and BXA. Taken together, our results not only characterized a new CEN inhibitor of IAV but also identified a novel amino acid substitution responsible for CEN inhibitor resistance, which provides critical clues for future drug development and drug resistance surveillance.
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Affiliation(s)
- Dan Luo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Qing Ye
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Rui-Ting Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Hang-Yu Zhou
- State Key Laboratory of Medical Molecular Biology, Suzhou Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou 215123, China
| | - Jing-Jing Guo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Suo-Qun Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Sen Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Tao Jiang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Yong-Qiang Deng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China.
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China.
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10
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Huang XY, Chen Q, Sun MX, Zhou HY, Ye Q, Chen W, Peng JY, Qi YN, Zhai JQ, Tian Y, Liu ZX, Huang YJ, Deng YQ, Li XF, Wu A, Yang X, Yang G, Shen Y, Qin CF. A pangolin-origin SARS-CoV-2-related coronavirus: infectivity, pathogenicity, and cross-protection by preexisting immunity. Cell Discov 2023; 9:59. [PMID: 37330497 DOI: 10.1038/s41421-023-00557-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/29/2023] [Indexed: 06/19/2023] Open
Abstract
Virus spillover remains a major challenge to public health. A panel of SARS-CoV-2-related coronaviruses have been identified in pangolins, while the infectivity and pathogenicity of these pangolin-origin coronaviruses (pCoV) in humans remain largely unknown. Herein, we comprehensively characterized the infectivity and pathogenicity of a recent pCoV isolate (pCoV-GD01) in human cells and human tracheal epithelium organoids and established animal models in comparison with SARS-CoV-2. pCoV-GD01 showed similar infectivity to SARS-CoV-2 in human cells and organoids. Remarkably, intranasal inoculation of pCoV-GD01 caused severe lung pathological damage in hACE2 mice and could transmit among cocaged hamsters. Interestingly, in vitro neutralization assays and animal heterologous challenge experiments demonstrated that preexisting immunity induced by SARS-CoV-2 infection or vaccination was sufficient to provide at least partial cross-protection against pCoV-GD01 challenge. Our results provide direct evidence supporting pCoV-GD01 as a potential human pathogen and highlight the potential spillover risk.
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Affiliation(s)
- Xing-Yao Huang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Qi Chen
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Meng-Xu Sun
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Hang-Yu Zhou
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Qing Ye
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Wu Chen
- Guangzhou Zoo & Guangzhou Wildlife Research Center, Guangzhou, Guangdong, China
| | - Jin-Yu Peng
- State Key Laboratory for Animal Disease Control and Prevention, Guangdong Laboratory for Lingnan Modern Agriculture, Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China
| | - Yi-Ni Qi
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Jun-Qiong Zhai
- Guangzhou Zoo & Guangzhou Wildlife Research Center, Guangzhou, Guangdong, China
| | - Ying Tian
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Zi-Xin Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Yi-Jiao Huang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Yong-Qiang Deng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Xiao-Feng Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Aiping Wu
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Xiao Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Guan Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.
| | - Yongyi Shen
- State Key Laboratory for Animal Disease Control and Prevention, Guangdong Laboratory for Lingnan Modern Agriculture, Center for Emerging and Zoonotic Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, China.
- Guangdong Provincial Key Laboratory of Zoonosis Prevention and Control, Guangzhou, Guangdong, China.
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China.
- Research Unit of Discovery and Tracing of Natural Focus Diseases, Chinese Academy of Medical Sciences, Beijing, China.
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11
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Cheng Y, Ji C, Zhou HY, Zheng H, Wu A. Web Resources for SARS-CoV-2 Genomic Database, Annotation, Analysis and Variant Tracking. Viruses 2023; 15:v15051158. [PMID: 37243244 DOI: 10.3390/v15051158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/10/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
The SARS-CoV-2 genomic data continue to grow, providing valuable information for researchers and public health officials. Genomic analysis of these data sheds light on the transmission and evolution of the virus. To aid in SARS-CoV-2 genomic analysis, many web resources have been developed to store, collate, analyze, and visualize the genomic data. This review summarizes web resources used for the SARS-CoV-2 genomic epidemiology, covering data management and sharing, genomic annotation, analysis, and variant tracking. The challenges and further expectations for these web resources are also discussed. Finally, we highlight the importance and need for continued development and improvement of related web resources to effectively track the spread and understand the evolution of the virus.
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Affiliation(s)
- Yexiao Cheng
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 211100, China
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
- Suzhou Institute of Systems Medicine, Suzhou 215123, China
| | - Chengyang Ji
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
- Suzhou Institute of Systems Medicine, Suzhou 215123, China
| | - Hang-Yu Zhou
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
- Suzhou Institute of Systems Medicine, Suzhou 215123, China
| | - Heng Zheng
- School of Life Science and Technology, China Pharmaceutical University, Nanjing 211100, China
| | - Aiping Wu
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
- Suzhou Institute of Systems Medicine, Suzhou 215123, China
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12
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Zhou HY, Lin LW, Sui ZY, Wang HY, Han BH. Holey Ti 3C 2 MXene-Derived Anode Enables Boosted Kinetics in Lithium-Ion Capacitors. ACS Appl Mater Interfaces 2023; 15:12161-12170. [PMID: 36812348 DOI: 10.1021/acsami.2c21327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Lithium-ion capacitors (LICs) attract enormous attention because of the urgent demands for high power and energy density devices. However, the intrinsic imbalance between anodes and cathodes with different charge-storage mechanisms blocks the further improvement in energy and power density. MXenes, novel two-dimensional materials with metallic conductivity, accordion-like structure, and regulable interlayer spacing, are widely employed in electrochemical energy storage devices. Herein, we propose a holey Ti3C2 MXene-derived composite (pTi3C2/C) with enhanced kinetics for LICs. This strategy effectively decreases the surface groups (-F and -O) and generates expanded interplanar spacing. The in-plane pores of Ti3C2Tx lead to increased active sites and accelerated lithium-ion diffusion kinetics. Benefiting from the expanded interplanar spacing and accelerated lithium-ion diffusion, the pTi3C2/C as an anode implements excellent electrochemical property (capacity retention about 80% after 2000 cycles). Furthermore, the LIC fabricated with a pTi3C2/C anode and an activated carbon cathode displays a maximum energy density of 110 Wh kg-1 and a considerable energy density of 71 Wh kg-1 at 4673 W kg-1. This work provides an effective strategy to achieve high antioxidant capability and boosted electrochemical properties, which represents a new exploration of structural design and tuneable surface chemistry for MXene in LICs.
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Affiliation(s)
- Hang-Yu Zhou
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- Key Laboratory of Applied Chemistry of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Liang-Wen Lin
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- Key Laboratory of Applied Chemistry of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Zhu-Yin Sui
- Shandong Key Laboratory for Chemical Engineering and Processing, College of Chemistry & Chemical Engineering, Yantai University, Yantai, Shandong 264005, China
| | - Hai-Yan Wang
- Key Laboratory of Applied Chemistry of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
| | - Bao-Hang Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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13
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Hou YM, Zhou HY, Chen W, Hao BL, Liu Y, Shi ZB, Zhang YP, Duan XR. Design and first measurements of the fast-ion D-alpha diagnostic at the HL-2A tokamak. Rev Sci Instrum 2023; 94:033508. [PMID: 37012805 DOI: 10.1063/5.0099281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 02/23/2023] [Indexed: 06/19/2023]
Abstract
The fast-ion D-alpha diagnostic (FIDA) is employed to detect Dα light emitted by neutralized fast ions during neutral beam injection. A tangentially viewing FIDA has been developed for the HuanLiuqi-2A (HL-2A) tokamak and typically achieves temporal and transverse spatial resolutions of ∼30 ms and ∼5 cm, respectively. A fast-ion tail on the red shifted wing of the FIDA spectrum is obtained and analyzed with the Monte Carlo code FIDASIM. Good agreement has been presented between the measured and simulated spectra. As the FIDA diagnostic's lines of sight intersect the central axis of neutral beam injection with small angles, the beam emission spectrum is observed with a large Doppler shift. Thus, tangentially viewing FIDA could detect only a small portion of fast ions with an energy of ≈ 20 ∼ 31 keV and a pitch angle of ≈ -1 ∼ -0.8. A second FIDA installation with oblique viewing is designed to minimize spectral contaminants.
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Affiliation(s)
- Y M Hou
- Southwestern Institute of Physics, Chengdu 610041, China
| | - H Y Zhou
- Southwestern Institute of Physics, Chengdu 610041, China
| | - W Chen
- Southwestern Institute of Physics, Chengdu 610041, China
| | - B L Hao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y Liu
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Z B Shi
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Y P Zhang
- Southwestern Institute of Physics, Chengdu 610041, China
| | - X R Duan
- Southwestern Institute of Physics, Chengdu 610041, China
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14
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Yao ZM, Sheng L, Song Y, Hei DW, Li Y, Zhu ZJ, Zhou HY, Yan WP, Han CC, Duan BJ, Yang KX, Peng BD, Zhang SA, Qi DL, Jin CZ, Yao YH, Huang ZQ. Dual-channel compressed ultrafast photography for Z-pinch dynamic imaging. Rev Sci Instrum 2023; 94:035106. [PMID: 37012784 DOI: 10.1063/5.0127056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/22/2022] [Indexed: 06/19/2023]
Abstract
The compressed ultrafast photography (CUP) can capture non-repetitive time-evolving events at 7 × 1013 fps, which is anticipated to find a diverse range of applications in physics, biomedical imaging, and materials science. The feasibility of diagnosing ultrafast phenomenon of Z-pinch by using the CUP has been analyzed in this article. Specifically, a dual-channel CUP design has been adopted for acquiring high quality reconstructed images and the strategies of identical masks, uncorrelated masks, and complementary masks have been compared. Furthermore, the image of the first channel was rotated by 90° to balance the spatial resolution between the sweep direction and the non-sweep direction. Both five synthetic videos and two simulated Z-pinch videos were chosen as the ground truth to validate this approach. The average peak signal to noise ratio of the reconstruction results is 50.55 dB for the self-emission visible light video and 32.53 dB for the laser shadowgraph video with unrelated masks (rotated channel 1). The simulation results show that the time-space-evolving process of plasma distribution can be well retold, and the phenomenon of plasma instability can be accurately diagnosed by the dual-channel CUP with unrelated masks (rotated channel 1). This study may promote the practical applications of the CUP in the field of accelerator physics.
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Affiliation(s)
- Z M Yao
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - L Sheng
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - Y Song
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - D W Hei
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - Y Li
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - Z J Zhu
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - H Y Zhou
- Department of Engineering Physics, Tsinghua University, Beijing 100083, China
| | - W P Yan
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - C C Han
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - B J Duan
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - K X Yang
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - B D Peng
- State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, China
| | - S A Zhang
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - D L Qi
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - C Z Jin
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Y H Yao
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
| | - Z Q Huang
- State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
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15
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Zhang YF, Guo JJ, Yang F, Zhou HY, Zhang NN, Xiong XC, Feng Y, Deng YQ, Qin CF. Characterization and phylogenetic analysis of a neurovirulent Zika virus isolated from Cambodia in 2019. J Med Virol 2023; 95:e28290. [PMID: 36367083 DOI: 10.1002/jmv.28290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 10/11/2022] [Accepted: 11/03/2022] [Indexed: 11/13/2022]
Abstract
The geographic range of Zika virus (ZIKV) has expanded from Asia to the Americas, leading to the 2015-2016 pandemic with enhanced neurovirulence. At present, ZIKV is continuously circulating in many Southeast Asian countries. Unfortunately, the persistent evolution of ZIKV in Southeast Asia and its influence on the biological characteristics of the virus remain incompletely understood. In this study, the in vitro and in vivo properties of a new ZIKV isolate obtained from Cambodia in 2019 (CAM/2019) were characterized and compared with those of the Cambodian strain (CAM/2010). Compared with CAM/2010, the CAM/2019 virus showed similar plaque morphology and growth curves in cell cultures and induced comparable viremia and organ viral loads profiles in both BALB/c and A129 (IFNAR1-/- ) mice upon intraperitoneal (i.p.) inoculation. Remarkably, the CAM/2019 virus exhibited enhanced neurovirulence in neonatal mice compared with CAM/2010, with a 74-fold reduction in the 50% lethal dose (LD50 ). Consistently, CAM/2019 produced higher viral loads in the brains of BALB/c neonatal mice than CAM/2010 did. Sequence alignment showed that the CAM/2019 virus has acquired 12 amino acid substitutions, several of which were found to be associated with neurovirulence. In particular, the CAM/2019 virus shared an A1204T substitution in NS2A with the Thai isolate SI-BKK02 that was isolated from a microcephaly case. Taken together, our results indicate that a ZIKV strain isolated with specific mutations has emerged in Cambodia, highlighting the need for extensive molecular and disease surveillance in Cambodia and other Asian countries.
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Affiliation(s)
- Yi-Fei Zhang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China.,State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Jing-Jing Guo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Fan Yang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Hang-Yu Zhou
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Na-Na Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Xiao-Chuan Xiong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Yue Feng
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yong-Qiang Deng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Cheng-Feng Qin
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China.,State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
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16
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O'Grady HM, Harrison R, Snedeker K, Trufen L, Yue P, Ward L, Fifen A, Jamieson P, Weiss A, Coulthard J, Lynch T, Croxen MA, Li V, Pabbaraju K, Wong A, Zhou HY, Dingle TC, Hellmer K, Berenger BM, Fonseca K, Lin YC, Evans D, Conly JM. A two-ward acute care hospital outbreak of SARS-CoV-2 delta variant including a point-source outbreak associated with the use of a mobile vital signs cart and sub-optimal doffing of personal protective equipment. J Hosp Infect 2023; 131:1-11. [PMID: 36195200 PMCID: PMC9527227 DOI: 10.1016/j.jhin.2022.09.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/16/2022] [Accepted: 09/27/2022] [Indexed: 01/25/2023]
Abstract
BACKGROUND The arrival of the Delta variant of SARS-CoV-2 was associated with increased transmissibility and illness of greater severity. Reports of nosocomial outbreaks of Delta variant COVID-19 in acute care hospitals have been described but control measures varied widely. AIM Epidemiological investigation of a linked two-ward COVID-19 Delta variant outbreak was conducted to elucidate its source, risk factors, and control measures. METHODS Investigations included epidemiologic analysis, detailed case review serial SARS-CoV-2 reverse transcriptase-polymerase chain reaction (RT-PCR) testing of patients and healthcare workers (HCWs), viral culture, environmental swabbing, HCW-unaware personal protective equipment (PPE) audits, ventilation assessments, and the use of whole genome sequencing (WGS). FINDINGS This linked two-ward outbreak resulted in 17 patient and 12 HCW cases, despite an 83% vaccination rate. In this setting, suboptimal adherence and compliance to PPE protocols, suboptimal hand hygiene, multi-bedded rooms, and a contaminated vital signs cart with potential fomite or spread via the hands of HCWs were identified as significant risk factors for nosocomial COVID-19 infection. Sudden onset of symptoms, within 72 h, was observed in 79% of all Ward 2 patients, and 93% of all cases (patients and HCWs) on Ward 2 occurred within one incubation period, consistent with a point-source outbreak. RT-PCR assays showed low cycle threshold (CT) values, indicating high viral load from environmental swabs including the vital signs cart. WGS results with ≤3 SNP differences between specimens were observed. CONCLUSION Outbreaks on both wards settled rapidly, within 3 weeks, using a `back-to-basics' approach without extraordinary measures or changes to standard PPE requirements. Strict adherence to recommended PPE, hand hygiene, education, co-operation from HCWs, including testing and interviews, and additional measures such as limiting movement of patients and staff temporarily were all deemed to have contributed to prompt resolution of the outbreak.
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Affiliation(s)
- H M O'Grady
- Infection Prevention and Control, Alberta Health Services, Calgary, Alberta, Canada
| | - R Harrison
- Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Workplace Health and Safety, Alberta Health Services, Edmonton, Alberta, Canada
| | - K Snedeker
- Provincial Population and Public Health, Alberta Health Services, Calgary, Alberta, Canada
| | - L Trufen
- Workplace Health and Safety, Alberta Health Services, Edmonton, Alberta, Canada
| | - P Yue
- Infection Prevention and Control, Alberta Health Services, Calgary, Alberta, Canada
| | - L Ward
- Infection Prevention and Control, Alberta Health Services, Calgary, Alberta, Canada
| | - A Fifen
- Infection Prevention and Control, Alberta Health Services, Calgary, Alberta, Canada
| | - P Jamieson
- Department of Family Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada; Site Administration, Foothills Medical Centre, Alberta Health Services, Calgary, Alberta, Canada
| | - A Weiss
- Site Administration, Foothills Medical Centre, Alberta Health Services, Calgary, Alberta, Canada
| | - J Coulthard
- Site Administration, Foothills Medical Centre, Alberta Health Services, Calgary, Alberta, Canada
| | - T Lynch
- Department of Pathology & Laboratory Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada; Genomics and Bioinformatics, Alberta Public Health Laboratory, Alberta Precision Laboratories, Calgary, Alberta, Canada; Alberta Public Health Laboratory, Alberta Precision Laboratories, Calgary, Alberta, Canada
| | - M A Croxen
- Alberta Public Heath Laboratory, Alberta Precision Laboratories, Edmonton, Alberta, Canada; Department of Laboratory Medicine, University of Alberta, Edmonton, Alberta, Canada; Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Alberta, Canada
| | - V Li
- Alberta Public Heath Laboratory, Alberta Precision Laboratories, Edmonton, Alberta, Canada
| | - K Pabbaraju
- Alberta Public Health Laboratory, Alberta Precision Laboratories, Calgary, Alberta, Canada
| | - A Wong
- Alberta Public Health Laboratory, Alberta Precision Laboratories, Calgary, Alberta, Canada
| | - H Y Zhou
- Alberta Public Health Laboratory, Alberta Precision Laboratories, Calgary, Alberta, Canada; Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
| | - T C Dingle
- Department of Pathology & Laboratory Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada; Alberta Public Health Laboratory, Alberta Precision Laboratories, Calgary, Alberta, Canada
| | - K Hellmer
- Site Administration, Foothills Medical Centre, Alberta Health Services, Calgary, Alberta, Canada
| | - B M Berenger
- Department of Pathology & Laboratory Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada; Alberta Public Health Laboratory, Alberta Precision Laboratories, Calgary, Alberta, Canada
| | - K Fonseca
- Alberta Public Health Laboratory, Alberta Precision Laboratories, Calgary, Alberta, Canada; Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Y-C Lin
- Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Alberta, Canada; Department of Medical Microbiology & Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - D Evans
- Li Ka Shing Institute of Virology, University of Alberta, Edmonton, Alberta, Canada; Department of Medical Microbiology & Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - J M Conly
- Infection Prevention and Control, Alberta Health Services, Calgary, Alberta, Canada; Department of Pathology & Laboratory Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada; Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, Alberta, Canada; Department of Medicine, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada; W21C Research and Innovation Centre, O'Brien Institute for Public Health, University of Calgary, Calgary, Alberta, Canada; Snyder Institute for Chronic Diseases, University of Calgary and Alberta Health Services, Calgary, Alberta, Canada.
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Tian T, Zhang WY, Zhou HY, Peng LJ, Zhou X, Zhang H, Yang FQ. A Catechol-Meter Based on Conventional Personal Glucose Meter for Portable Detection of Tyrosinase and Sodium Benzoate. Biosensors (Basel) 2022; 12:bios12121084. [PMID: 36551051 PMCID: PMC9776396 DOI: 10.3390/bios12121084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/22/2022] [Accepted: 11/24/2022] [Indexed: 05/28/2023]
Abstract
In this study, the personal glucose meter (PGM) was first used as a fast and user-friendly meter for analyzing catechol (CA) based on the reduction of the mediator K3[Fe(CN)6] to K4[Fe(CN)6] in the glucose test strip. Then, an easy, low-cost, and convenient PGM-based method for detecting tyrosinase (TYR) activity and sodium benzoate (SBA) was developed on the basis of the TYR-catalyzed reaction. In this method, CA is oxidized to form o-benzoquinone by TYR, thereby reducing the residual amount of CA and the PGM readout. On the other hand, SBA can inhibit the oxidation of CA catalyzed by TYR and increase the residual amount of CA after the enzymatic reaction. Therefore, the activity of TYR is proportional to the difference in the PGM readout of CA, and the concentration of SBA is positively correlated with the residual amount of CA. After the relevant experimental conditions were systematically optimized, the proposed PGM-based method for the detection of TYR and SBA was successfully validated. The liner ranges are 1.0-103.3 U/mL and 6.25-1000 ppm, and the quantification limits are 1.0 U/mL and 6.25 ppm for TYR and SBA, respectively. Moreover, the spiked recovery tests in normal human serum and carbonate beverages (i.e., Cola, Sprite, and Fanta) were performed, and the recoveries (91.6-106.8%) further confirm the applicability of the PGM-based method in real sample analysis.
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Affiliation(s)
- Tao Tian
- Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Wei-Yi Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Hang-Yu Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Li-Jing Peng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Xi Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Hao Zhang
- Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
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18
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Ji C, Han N, Cheng Y, Shang J, Weng S, Yang R, Zhou HY, Wu A. sitePath: a visual tool to identify polymorphism clades and help find fixed and parallel mutations. BMC Bioinformatics 2022; 23:504. [PMID: 36434502 PMCID: PMC9701067 DOI: 10.1186/s12859-022-05064-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 11/16/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Identifying polymorphism clades on phylogenetic trees could help detect punctual mutations that are associated with viral functions. With visualization tools coloring the tree, it is easy to visually find clades where most sequences have the same polymorphism state. However, with the fast accumulation of viral sequences, a computational tool to automate this process is urgently needed. RESULTS Here, by implementing a branch-and-bound-like search method, we developed an R package named sitePath to identify polymorphism clades automatically. Based on the identified polymorphism clades, fixed and parallel mutations could be inferred. Furthermore, sitePath also integrated visualization tools to generate figures of the calculated results. In an example with the influenza A virus H3N2 dataset, the detected fixed mutations coincide with antigenic shift mutations. The highly specificity and sensitivity of sitePath in finding fixed mutations were achieved for a range of parameters and different phylogenetic tree inference software. CONCLUSIONS The result suggests that sitePath can identify polymorphism clades per site. The clustering of sequences on a phylogenetic tree can be used to infer fixed and parallel mutations. High-quality figures of the calculated results could also be generated by sitePath.
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Affiliation(s)
- Chengyang Ji
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu China
| | - Na Han
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu China
| | - Yexiao Cheng
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu China ,grid.254147.10000 0000 9776 7793School of Life Science and Technology, China Pharmaceutical University, Nanjing, 211100 China
| | - Jingzhe Shang
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu China
| | - Shenghui Weng
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu China
| | - Rong Yang
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu China
| | - Hang-Yu Zhou
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu China
| | - Aiping Wu
- grid.506261.60000 0001 0706 7839Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005 China ,grid.494590.5Suzhou Institute of Systems Medicine, Suzhou, 215123 Jiangsu China
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Zhang WY, Tian T, Peng LJ, Zhou HY, Zhang H, Chen H, Yang FQ. A Paper-Based Analytical Device Integrated with Smartphone: Fluorescent and Colorimetric Dual-Mode Detection of β-Glucosidase Activity. Biosensors (Basel) 2022; 12:893. [PMID: 36291030 PMCID: PMC9599113 DOI: 10.3390/bios12100893] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/15/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
In this work, indoxyl-glucoside was used as the substrate to develop a cost-effective, paper-based analytical device for the fluorescent and colorimetric dual-mode detection of β-glucosidase activity through a smartphone. The β-glucosidase can hydrolyze the colorless substrate indoxyl-glucoside to release indoxyl, which will be self-oxidized to generate green products in the presence of oxygen. Meanwhile, the green products emit bright blue-green fluorescence under ultraviolet-visible light irradiation at 365 nm. Fluorescent or colorimetric images were obtained by a smartphone, and the red-green-blue channels were analyzed by the Adobe Photoshop to quantify the β-glucosidase activity. Under the optimum conditions, the relative fluorescent and colorimetric signals have a good linear relationship with the activity of β-glucosidase, in the range of 0.01-1.00 U/mL and 0.25-5.00 U/mL, and the limits of detection are 0.005 U/mL and 0.0668 U/mL, respectively. The activities of β-glucosidase in a crude almond sample measured by the fluorescent and colorimetric methods were 23.62 ± 0.53 U/mL and 23.86 ± 0.25 U/mL, respectively. In addition, the spiked recoveries of normal human serum and crude almond samples were between 87.5% and 118.0%. In short, the paper-based device, combined with a smartphone, can provide a simple, environmentally friendly, and low-cost method for the fluorescent and colorimetric dual-mode detection of β-glucosidase activity.
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Affiliation(s)
- Wei-Yi Zhang
- Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Tao Tian
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Li-Jing Peng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Hang-Yu Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Hao Zhang
- Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
| | - Hua Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
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20
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Zhou P, Xia Y, Wu Y, Hou WH, Lu Y, Yan SS, Zhou HY, Zhang W, Liu K. Novel Urea-Based Molecule Functioning as a Solid Electrolyte Interphase Enabler and LiPF 6 Decomposition Inhibitor for Fast-Charging Lithium Metal Batteries. ACS Appl Mater Interfaces 2022; 14:38921-38930. [PMID: 35980284 DOI: 10.1021/acsami.2c11403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The practical application of lithium metal batteries is impeded by the growth of dendrites and decomposition of electrolytes especially at high temperature in normal carbonate-based electrolytes. Herein, a novel urea-based molecule, 1,3-dimethyl-2-imidazolidinone (DMI), with a high donor number is proposed, which exhibits an extraordinary solubility of LiNO3 of over 5 M. As a result, a sufficient amount of LiNO3 is readily introduced into the carbonate electrolytes with DMI as an additive, and an average coulombic efficiency of 99.1% for lithium plating/stripping is achieved due to a stable solid electrolyte interphase (SEI) rich in inorganic-rich lithium salts. The Li||Li symmetric cell achieves a stable operation for over 2500 h at 0.5 mA cm-2 and 1 mAh cm-2, and a granular shape of deposited Li metal is still preserved even at a high current density of 10 mA cm-2. Besides, the decomposition of LiPF6 is inhibited benefiting from its enhanced dissociation after the addition of DMI/LiNO3 and DMI's function as a PF5 scavenger. Consequently, the Li||LiFePO4 cell succeeds to achieve an excellent capacity retention of 95.6% after 2200 cycles at a high rate of 5C, and a stable operation is realized at a high temperature of 60 °C even under harsh conditions (45 μm ultrathin Li and ∼1.5 mAh cm-2 LiFePO4). This work enriches the solvents and additives pool for stable and high-performance lithium metal batteries and will shed light on future developments of advanced battery electrolytes.
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Affiliation(s)
- Pan Zhou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yingchun Xia
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yuhao Wu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Wen-Hui Hou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yang Lu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Shuai Shuai Yan
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Hang-Yu Zhou
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Weili Zhang
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Kai Liu
- The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Cheng Y, Ji C, Han N, Li J, Xu L, Chen Z, Yang R, Zhou HY, Wu A. covSampler: A Subsampling Method with Balanced Genetic Diversity for Large-Scale SARS-CoV-2 Genome Data Sets. Virus Evol 2022; 8:veac071. [PMCID: PMC9384632 DOI: 10.1093/ve/veac071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 07/28/2022] [Accepted: 08/04/2022] [Indexed: 11/14/2022] Open
Abstract
Phylogenetic analysis has been widely used to describe, display and infer the evolutionary patterns of viruses. The unprecedented accumulation of SARS-CoV-2 genomes has provided valuable materials for the real-time study of SARS-CoV-2 evolution. However, the large number of SARS-CoV-2 genome sequences also poses great challenges for data analysis. Several methods for subsampling these large data sets have been introduced. However, current methods mainly focus on the spatiotemporal distribution of genomes without considering their genetic diversity, which might lead to postsubsampling bias. In this study, a subsampling method named covSampler was developed for the subsampling of SARS-CoV-2 genomes with consideration of both their spatiotemporal distribution and their genetic diversity. First, covSampler clusters all genomes according to their spatiotemporal distribution and genetic variation into groups that we call divergent pathways. Then, based on these divergent pathways, two kinds of subsampling strategies, representative subsampling and comprehensive subsampling, were provided with adjustable parameters to meet different users’ requirements. Our performance and validation tests indicate that covSampler is efficient and stable, with an abundance of options for user customization. Overall, our work has developed an easy-to-use tool and a webserver (https://www.covsampler.net) for the subsampling of SARS-CoV-2 genome sequences.
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Affiliation(s)
- Yexiao Cheng
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, China
- Suzhou Institute of Systems Medicine , Suzhou, Jiangsu 215123, China
- School of Life Science and Technology, China Pharmaceutical University , Nanjing, Jiangsu 211100, China
| | - Chengyang Ji
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, China
- Suzhou Institute of Systems Medicine , Suzhou, Jiangsu 215123, China
| | - Na Han
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, China
- Suzhou Institute of Systems Medicine , Suzhou, Jiangsu 215123, China
| | - Jiaying Li
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, China
- Suzhou Institute of Systems Medicine , Suzhou, Jiangsu 215123, China
| | - Lin Xu
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, China
- Suzhou Institute of Systems Medicine , Suzhou, Jiangsu 215123, China
- School of Life Science and Technology, China Pharmaceutical University , Nanjing, Jiangsu 211100, China
| | - Ziyi Chen
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, China
- Suzhou Institute of Systems Medicine , Suzhou, Jiangsu 215123, China
| | - Rong Yang
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, China
- Suzhou Institute of Systems Medicine , Suzhou, Jiangsu 215123, China
| | - Hang-Yu Zhou
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, China
- Suzhou Institute of Systems Medicine , Suzhou, Jiangsu 215123, China
| | - Aiping Wu
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College , Beijing 100005, China
- Suzhou Institute of Systems Medicine , Suzhou, Jiangsu 215123, China
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22
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Zhou HY, Zhang H, Peng LJ, Zhang WY, Tian T, Yang FQ. L-cysteine-regulated in situ formation of Prussian blue/Turnbull’s blue nanoparticles as the colorimetric probe for the detection of copper ion. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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23
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Peng LJ, Zhou HY, Zhang CY, Yang FQ. Study on the peroxidase-like activity of cobalt phosphate and its application in colorimetric detection of hydrogen peroxide. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129031] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhou P, Xia Y, Hou WH, Yan S, Zhou HY, Zhang W, Lu Y, Wang P, Liu K. Rationally Designed Fluorinated Amide Additive Enables the Stable Operation of Lithium Metal Batteries by Regulating the Interfacial Chemistry. Nano Lett 2022; 22:5936-5943. [PMID: 35819353 DOI: 10.1021/acs.nanolett.2c01961] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A fluorinated amide molecule with two functional segments, namely, an amide group with a high donor number to bind lithium ions and a fluorine chain to expel carbonate solvents and mediate the formation of LiF, was designed to regulate the interfacial chemistry. As expected, the additive preferably appears in the first solvation sheath of lithium ions and is electrochemically reduced on the anode, and thus an inorganic-rich solid electrolyte interphase is generated. The morphology of deposited lithium metal evolves from brittle dendrites into a granular shape. Consequently, the Li||LiFePO4 cell shows an excellent capacity retention of 92.7% at a high rate of 5 C after 800 cycles. Besides, the Li||LiNi0.8Co0.1Mn0.1O2 cell succeeds to maintain 98.1% of the initial capacity after 100 cycles at 1 C. Our designing of N,N-diethyl- 2,3,3,3-tetrafluoropropionamide (denoted as DETFP) highlights the importance of a "high donor number" and may shed light on the design principles of electrolytes for high performance batteries.
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Affiliation(s)
- Pan Zhou
- Department of Chemical Engineering, Tsinghua University, Beijing, China 100084
| | - Yingchun Xia
- Department of Chemical Engineering, Tsinghua University, Beijing, China 100084
| | - Wen-Hui Hou
- Department of Chemical Engineering, Tsinghua University, Beijing, China 100084
| | - Shuaishuai Yan
- Department of Chemical Engineering, Tsinghua University, Beijing, China 100084
| | - Hang-Yu Zhou
- Department of Chemical Engineering, Tsinghua University, Beijing, China 100084
| | - Weili Zhang
- Department of Chemical Engineering, Tsinghua University, Beijing, China 100084
| | - Yang Lu
- Department of Chemical Engineering, Tsinghua University, Beijing, China 100084
| | - Peican Wang
- Department of Chemical Engineering, Tsinghua University, Beijing, China 100084
| | - Kai Liu
- Department of Chemical Engineering, Tsinghua University, Beijing, China 100084
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Du YQ, Liang C, Gu YP, Zhou HY, Huang JY, Cao J. [Evaluation of the effectiveness of malaria control health education among overseas enterprise employees]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:383-391. [PMID: 36116928 DOI: 10.16250/j.32.1374.2022032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To evaluate the effectiveness of health education on knowledge, attitude and practice (KAP) relating to malaria control among overseas enterprise employees. METHODS In September 2019, on-site malaria control health education was conducted among all Chinese employees of a China-funded mining enterprise in the Democratic Republic of Congo. The KAP questionnaire for malaria control was generated on the Questionstar website, and the participants were subjected to two questionnaire surveys prior to and 14 months after health education. After the questionnaires were recovered, all valid questionnaires were divided into 4 groups, including the baseline group (the questionnaires filled out by respondents who received health education and participated in two questionnaire surveys before health education), the loss-to-follow-up group (the questionnaires filled out by respondents who received health education but only participated in the questionnaire survey after health education), the retest group (the questionnaires filled out by respondents who received health education and participated in two questionnaire surveys after health education) and the new group (questionnaires filled out by respondents who did not receive health education and only participated in the questionnaire survey after health education) according to subjects' receiving health education and participation in two questionnaire surveys. The correct rate of malaria control knowledge, the proportion to good attitudes towards malaria control and the proportion of good practices towards malaria control were compared between the baseline group and the loss-to-follow-up group, between the baseline group and the retest group, and between the retest group and the new group. RESULTS A total of 110 and 142 valid questionnaires were recovered during the two surveys, and the recovery rates were 90.9% and 70.3%, respectively. There were 77, 77, 33, and 65 valid questionnaires recovered from the baseline group, the loss-to-follow-up group, the retest group, and the new group, respectively. There were no significant differences in respondents' gender, age and educational levels between the baseline group and the loss-to-follow-up group (all P values > 0.05), and there were no significant differences between the two groups in terms of the mean score of malaria control knowledge (Z = 2.011, P > 0.05), the mean score of attitudes towards malaria control (t = -0.787, P > 0.05) and the mean score of practices towards malaria control (t = -0.787, P > 0.05). There were significant differences between the retest group and the baseline group in terms of the mean score of malaria control knowledge (10.83 vs. 9.79; Z = -4.017, P < 0.05), the mean score of attitudes towards malaria control (29.48 vs. 28.61; Z = -1.981, P < 0.05) and the mean score of practices towards malaria control (6.43 vs. 5.91; Z = -2.499, P < 0.05). There were no significant differences between the retest group and the new group in terms of gender, age or education levels (all P values > 0.05), and a higher mean score of malaria control knowledge was found in the retest group than in the new group (10.83 vs. 9.81; Z = -2.962, P < 0.05), while no significant differences were seen in the mean score of attitudes towards malaria control (29.48 vs. 30.17; Z = -1.158, P > 0.05) and the mean score of practices towards malaria control (6.43 vs. 6.37; Z = -0.048, P > 0.05) between the two groups. CONCLUSIONS Malaria control health education may significantly improve the understanding of malaria control knowledge, positive attitudes towards malaria control and the compliance of practices towards malaria control among overseas enterprise employees.
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Affiliation(s)
- Y Q Du
- School of Public Health, Fudan University, National Health Commission Key Laboratory of Health Technology Assessment, Shanghai 200032, China
| | - C Liang
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Y P Gu
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - H Y Zhou
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - J Y Huang
- School of Public Health, Fudan University, National Health Commission Key Laboratory of Health Technology Assessment, Shanghai 200032, China
| | - J Cao
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
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Liu D, Rodriguez GD, Zhou HY, Cheng YX, Li X, Tang W, Prasad N, Chen CC, Singh V, Konadu E, James KK, Bahamon MF, Chen Y, Segal-Maurer S, Wu A, Rodgers WH. SARS-CoV-2 Continuous Genetic Divergence and Changes in Multiplex RT-PCR Detection Pattern on Positive Retesting Median 150 Days after Initial Infection. Int J Mol Sci 2022; 23:ijms23116254. [PMID: 35682933 PMCID: PMC9181733 DOI: 10.3390/ijms23116254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/29/2022] [Accepted: 05/30/2022] [Indexed: 11/16/2022] Open
Abstract
Being in the epicenter of the COVID-19 pandemic, our lab tested 193,054 specimens for SARS-CoV-2 RNA by diagnostic multiplex reverse transcription polymerase chain reaction (mRT-PCR) starting in March 2020, of which 17,196 specimens resulted positive. To investigate the dynamics of virus molecular evolution and epidemiology, whole genome amplification (WGA) and Next Generation Sequencing (NGS) were performed on 9516 isolates. 7586 isolates with a high quality were further analyzed for the mutation frequency and spectrum. Lastly, we evaluated the utility of the mRT-PCR detection pattern among 26 reinfected patients with repeat positive testing three months after testing negative from the initial infection. Our results show a continuation of the genetic divergence in viral genomes. Furthermore, our results indicate that independent mutations in the primer and probe regions of the nucleocapsid gene amplicon and envelope gene amplicon accumulate over time. Some of these mutations correlate with the changes of detection pattern of viral targets of mRT-PCR. Our data highlight the significance of a continuous genetic divergence on a gene amplification-based assay, the value of the mRT-PCR detection pattern for complementing the clinical diagnosis of reinfection, and the potential for WGA and NGS to identify mutation hotspots throughout the entire viral genome to optimize the design of the PCR-based gene amplification assay.
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Affiliation(s)
- Dakai Liu
- Department of Pathology and Clinical Laboratories, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (D.L.); (V.S.); (E.K.); (K.K.J.); (M.F.B.); (Y.C.)
| | - George D. Rodriguez
- Division of Infectious Disease, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (N.P.); (S.S.-M.)
- Correspondence: (G.D.R.); (A.W.); (W.H.R.)
| | - Hang-Yu Zhou
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; (H.-Y.Z.); (Y.-X.C.)
- Suzhou Institute of Systems Medicine, Suzhou 215123, China
| | - Ye-Xiao Cheng
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; (H.-Y.Z.); (Y.-X.C.)
- Suzhou Institute of Systems Medicine, Suzhou 215123, China
| | - Xiaofeng Li
- National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou 510182, China;
| | - Wenwen Tang
- Vascular Biology and Therapeutics Program, Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA;
| | - Nishant Prasad
- Division of Infectious Disease, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (N.P.); (S.S.-M.)
| | - Chun-Cheng Chen
- Department of Surgery, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA;
| | - Vishnu Singh
- Department of Pathology and Clinical Laboratories, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (D.L.); (V.S.); (E.K.); (K.K.J.); (M.F.B.); (Y.C.)
| | - Eric Konadu
- Department of Pathology and Clinical Laboratories, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (D.L.); (V.S.); (E.K.); (K.K.J.); (M.F.B.); (Y.C.)
| | - Keither K. James
- Department of Pathology and Clinical Laboratories, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (D.L.); (V.S.); (E.K.); (K.K.J.); (M.F.B.); (Y.C.)
| | - Maria F. Bahamon
- Department of Pathology and Clinical Laboratories, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (D.L.); (V.S.); (E.K.); (K.K.J.); (M.F.B.); (Y.C.)
| | - Yvonne Chen
- Department of Pathology and Clinical Laboratories, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (D.L.); (V.S.); (E.K.); (K.K.J.); (M.F.B.); (Y.C.)
| | - Sorana Segal-Maurer
- Division of Infectious Disease, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (N.P.); (S.S.-M.)
| | - Aiping Wu
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; (H.-Y.Z.); (Y.-X.C.)
- Suzhou Institute of Systems Medicine, Suzhou 215123, China
- Correspondence: (G.D.R.); (A.W.); (W.H.R.)
| | - William Harry Rodgers
- Department of Pathology and Clinical Laboratories, NewYork-Presbyterian Queens, 56-45 Main Street Flushing, New York, NY 11355, USA; (D.L.); (V.S.); (E.K.); (K.K.J.); (M.F.B.); (Y.C.)
- Department of Pathology and Laboratory Medicine, Weil Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA
- Correspondence: (G.D.R.); (A.W.); (W.H.R.)
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Zhou HY, Yan SS, Li J, Dong H, Zhou P, Wan L, Chen XX, Zhang WL, Xia YC, Wang PC, Wang BG, Liu K. Lithium Bromide-Induced Organic-Rich Cathode/Electrolyte Interphase for High-Voltage and Flame-Retardant All-Solid-State Lithium Batteries. ACS Appl Mater Interfaces 2022; 14:24469-24479. [PMID: 35587195 DOI: 10.1021/acsami.2c05016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Poly(ethylene oxide) (PEO)-based solid electrolyte suffers from limited anodic stability and an intrinsic flammable issue, hindering the achievement of high energy density and safe all-solid-state lithium batteries. Herein, we surprisingly found out that a bromine-rich additive, decabromodiphenyl ethane (DBDPE), could be preferably oxidized at an elevated voltage and decompose to lithium bromide at an elevated potential followed by inducing an organic-rich cathode/electrolyte interphase (CEI) on NCM811 surface, enabling both high-voltage resistance (up to 4.5 V) and flame-retardancy for the PEO-based electrolyte. On the basis of this novel solid electrolyte, all-solid-state Li/NCM811 batteries deliver an average reversible capacity of 151.4 mAh g-1 over the first 150 cycles with high capacity retention (83.0%) and high average Coulombic efficiency (99.7%) even at a 4.5 V cutoff voltage with a unprecedented flame-retardant properties. In view of these exploration, our studies revealed the critical role of LiBr in inducing an organic-rich thin and uniform CEI passivating layer with enhanced lithium ion surface diffusion and high-voltage resistant properties, which provides a new protocol for the further design of a high-voltage PEO-based all-solid-state electrolyte.
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Affiliation(s)
- Hang-Yu Zhou
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Shuai-Shuai Yan
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Jun Li
- Sinopec Shanghai Research Institute of Petrochemical Technology, Shanghai 201208, China
| | - Hao Dong
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Pan Zhou
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Lei Wan
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xiao-Xia Chen
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Wei-Li Zhang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Ying-Chun Xia
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Pei-Can Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Bao-Guo Wang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Kai Liu
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Qiu GL, Wei C, Zhu MK, Han SN, Li XW, Wang HJ, Wang PX, Liu JH, Zhou HY, Liao XH, Che XM, Fan L. [Efficacy of laparoscopic proximal gastrectomy with double-tract reconstruction versus laparoscopic total gastrectomy with Roux-en-Y reconstruction for early upper gastric cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:412-420. [PMID: 35599396 DOI: 10.3760/cma.j.cn441530-20211118-00466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To compare clinical efficacy between laparoscopic radical proximal gastrectomy with double-tract reconstruction (LPG-DTR) and laparoscopic radical total gastrectomy with Roux-en-Y reconstruction (LTG-RY) in patients with early upper gastric cancer, and to provide a reference for the selection of surgical methods in early upper gastric cancer. Methods: A retrospective cohort study method was carried out. Clinical data of 80 patients with early upper gastric cancer who underwent LPG-DTR or LTG-RY by the same surgical team at the Department of General Surgery, the First Affiliated Hospital of Xi'an Jiaotong University from January 2018 to January 2021 were retrospectively analyzed. Patients were divided into the DTR group (32 cases) and R-Y group (48 cases) according to surgical procedures and digestive tract reconstruction methods. Surgical and pathological characteristics, postoperative complications (short-term complications within 30 days after surgery and long-term complications after postoperative 30 days), survival time and nutritinal status were compared between the two groups. For nutritional status, reduction rate was used to represent the changes in total protein, albumin, total cholesterol, body mass, hemoglobin and vitamin B12 levels at postoperative 1-year and 2-year. Non-normally distributed continuous data were presented as median (interquartile range), and the Mann-Whitney U test was used for comparison between groups. The χ(2) test or Fisher's exact test was used for comparison of data between groups. The Mann-Whitney U test was used to compare the ranked data between groups. The survival rate was calculated by Kaplan-Meier method categorical, and compared by using the log-rank test. Results: There were no statistically significant differences in baseline data betweeen the two groups, except that patients in the R-Y group were oldere and had larger tumor. Patients of both groups successfully completed the operation without conversion to laparotomy, combined organ resection, or perioperative death. There were no significant differences in the distance from proximal resection margin to superior margin of tumor, postoperative hospital stay, time to flatus and food-taking, hospitalization cost, short- and long-term complications between the two groups (all P>0.05). Compared with the R-Y group, the DTR group had shorter distal margins [(3.2±0.5) cm vs. (11.7±2.0) cm, t=-23.033, P<0.001], longer surgery time [232.5 (63.7) minutes vs. 185.0 (63.0) minutes, Z=-3.238, P=0.001], longer anastomosis time [62.5 (17.5) minutes vs. 40.0 (10.0) minutes, Z=-6.321, P<0.001], less intraoperative blood loss [(138.1±51.6) ml vs. (184.3±62.1) ml, t=-3.477, P=0.001], with significant differences (all P<0.05). The median follow-up of the whole group was 18 months, and the 2-year cancer-specific survival rate was 97.5%, with 100% in the DTR group and 95.8% in the R-Y group (P=0.373). Compared with R-Y group at postoperative 1 year, the reduction rate of weight, hemoglobin and vitamin B12 were lower in DTR group with significant differences (all P<0.05); at postoperative 2-year, the reduction rate of vitamin B12 was still lower with significant differences (P<0.001), but the reduction rates of total protein, albumin, total cholesterol, body weight and hemoglobin were similar between the two groups (all P>0.05). Conclusions: LPG-DTR is safe and feasible in the treatment of early upper gastric cancer. The short-term postoperative nutritional status and long-term vitamin B12 levels of patients undergoing LPG-DTR are superior to those undergoing LTG-RY.
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Affiliation(s)
- G L Qiu
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - C Wei
- Clinical Medicine Teaching and Research Section, Xi'an Health School, Xi'an 710054, China
| | - M K Zhu
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - S N Han
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - X W Li
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - H J Wang
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - P X Wang
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - J H Liu
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - H Y Zhou
- Department of General Surgery, Hanzhong Central Hospital, Hanzhong 723000, China
| | - X H Liao
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - X M Che
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
| | - L Fan
- Department of General Surgery, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China
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Lu GY, Cao YY, Wang WM, Yang MM, Liu YB, Zhang YY, Chen Q, Lu Y, Zhou HY, Zhu GD, Cao J. [Time to initial diagnosis of imported malaria and its influencing factors in Jiangsu Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:172-178. [PMID: 35537839 DOI: 10.16250/j.32.1374.2021185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To investigate the health-seeking behaviors of imported malaria cases after returning to China, and to investigate the factors affecting the time to initial diagnosis, so as to provide the scientific evidence for early identification of imported malaria cases and prevention of severe cases development and secondary transmission. METHODS The individual demographic features, and the disease onset and the time to initial diagnosis of imported malaria cases in Jiangsu Province in 2019 were captured from the National Notifiable Disease Report System and the Information Management System for Parasitic Disease Control in China. The characteristics of health-seeking behaviors and epidemiological features of imported malaria cases were descriptively analyzed, and the factors affecting the time to initial diagnosis of imported malaria cases after returning to China were identified using multivariate logistic regression analysis. RESULTS A total of 244 imported malaria cases were reported in Jiangsu Province in 2019, and the time to initial diagnosis of the cases were 1-12 days, with mean time of (1.53 ± 1.65) days, with median time of one day. The highest number of malaria cases seeking healthcare services were found on the day of developing primary symptoms (76 cases, 31.1%), followed by on the second day (68 cases, 27.9%), on the third day (46 cases, 18.9%), and 54 cases (22.1%) received initial diagnosis 3 days following presence of primary symptoms, including 3 cases with initial diagnosis at more than one week. High proportions of imported malaria cases with a delay in the time to initial diagnosis were seen in migrant workers who returned to China in January (14 cases, 5.7%) and December (13 cases, 5.3%) and those aged between 41 and 50 years (32 cases, 13.1%). Multivariate logistic regression analysis showed relative short time to initial diagnosis among imported malaria cases returning to China on March [odds ratio (OR) = 0.16, P = 0.03, 95% confidence interval (CI): (0.03, 0.85)] and those with a history of overseas malaria parasite infections [OR = 0.36, P = 0.001, 95% CI: (0.19, 0.67)]. CONCLUSIONS Timely health-seeking behaviors should be improved among imported malaria cases in Jiangsu Province, patients with a history of overseas malaria infections require faster health-seeking activities.
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Affiliation(s)
- G Y Lu
- School of Public Health, Medical College of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu 225007, China
| | - Y Y Cao
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - W M Wang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - M M Yang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Y B Liu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Y Y Zhang
- School of Public Health, Medical College of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu 225007, China
| | - Q Chen
- Institute of Global Health, University of Heidelberg, Germany
| | - Y Lu
- Health and Quarantine Office, Nanjing Customs, China
| | - H Y Zhou
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - G D Zhu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - J Cao
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
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Chen GY, Zhang CY, Yin SJ, Zhou HY, Tian T, Peng LJ, Zhang H, Chen H, Yang FQ. Highly sensitive visual colorimetric sensor for trichlorfon detection based on the inhibition of metallization of gold nanorods. Spectrochim Acta A Mol Biomol Spectrosc 2022; 270:120850. [PMID: 35033808 DOI: 10.1016/j.saa.2021.120850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/20/2021] [Accepted: 12/30/2021] [Indexed: 06/14/2023]
Abstract
In this study, a highly sensitive visual colorimetric sensor was designed for the detection of trichlorfon based on inhibiting ascorbate oxidase (AAO)-induced metallization of gold nanorods (Au NRs). Ascorbic acid (AA) can reduce silver ion (Ag+) to metal silver (Ag) that will be deposited on the surface of Au NRs, which results in the blue shift of longitudinal localized surface plasmon resonance (LSPR) peak of Au NRs, accompanying by perceptible color changes from red to cyan to red to yellow. In the presence of trichlorfon, the activity of AAO will be inhibited, resulting in less AA is hydrolyzed to dehydroascorbic acid (DHA), and therefore more Ag+ is reduced to Ag by AA. Under the optimized conditions, detection of trichlorfon has a wide linear range of 27.8-11111.1 μg/L with a limit of detection as low as 132.6 ng/L. Moreover, the sensor has a good sample spiked recovery (84.7-96.8%) for the determination of trichlorfon in lake water samples. The proposed method can achieve rapid analysis (about 10 min) of trichlorfon with simple operation when there are no other types of organophosphorus pesticides in the real samples.
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Affiliation(s)
- Guo-Ying Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Chun-Yan Zhang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Shi-Jun Yin
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Hang-Yu Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Tao Tian
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Li-Jing Peng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Hao Zhang
- Chongqing Key Laboratory of High Active Traditional Chinese Drug Delivery System, Chongqing Medical and Pharmaceutical College, Chongqing 401331, China
| | - Hua Chen
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
| | - Feng-Qing Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China.
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Zhang NN, Zhang RR, Zhang YF, Ji K, Xiong XC, Qin QS, Gao P, Lu XS, Zhou HY, Song HF, Ying B, Qin CF. Rapid development of an updated mRNA vaccine against the SARS-CoV-2 Omicron variant. Cell Res 2022; 32:401-403. [PMID: 35165421 PMCID: PMC8853430 DOI: 10.1038/s41422-022-00626-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 01/25/2022] [Indexed: 11/24/2022] Open
Affiliation(s)
- Na-Na Zhang
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Rong-Rong Zhang
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China
| | - Yi-Fei Zhang
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China
- Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Kai Ji
- Suzhou Abogen Biosciences Co., Ltd., Suzhou, Jiangsu, China
| | - Xiao-Chuan Xiong
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China
- School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian, China
| | - Qian-Shan Qin
- Suzhou Abogen Biosciences Co., Ltd., Suzhou, Jiangsu, China
| | - Peng Gao
- Suzhou Abogen Biosciences Co., Ltd., Suzhou, Jiangsu, China
| | - Xi-Shan Lu
- Suzhou Abogen Biosciences Co., Ltd., Suzhou, Jiangsu, China
| | - Hang-Yu Zhou
- Institute of Systems Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Hai-Feng Song
- Suzhou Abogen Biosciences Co., Ltd., Suzhou, Jiangsu, China
| | - Bo Ying
- Suzhou Abogen Biosciences Co., Ltd., Suzhou, Jiangsu, China.
| | - Cheng-Feng Qin
- Department of Virology, State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China.
- Research Unit of Discovery and Tracing of Natural Focus Diseases, Chinese Academy of Medical Sciences, Beijing, China.
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Peng LJ, Yin SJ, Chen L, Tian T, Zhang WY, Zhou HY, Yang FQ. Investigating the oxidase-like activity of a Co-Fe Prussian blue analog nanocube prepared in situ and its applications in colorimetric detection of ascorbic acid, alkaline phosphatase, α-glucosidase, and ascorbic acid oxidase. NEW J CHEM 2022. [DOI: 10.1039/d2nj05460d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
In this work, a Co-Fe Prussian blue analogue nanocube (Co-Fe PBA NC) was prepared in situ by a simple and rapid coprecipitation method at room temperature, and the synthesized nanocube...
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Wang WM, Cao YY, Yang MM, Lu Y, Gu YP, Xu S, Zhou HY, Zhu GD. [Epidemiological characteristics of imported Plasmodium ovale malaria in Jiangsu Province from 2012 to 2020]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 34:66-71. [PMID: 35266359 DOI: 10.16250/j.32.1374.2021186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To analyze the epidemiological characteristics of imported cases with Plasmodium ovale infections in Jiangsu Province from 2012 to 2020, so as to provide insights into the development of the imported malaria control strategy in the province. METHODS All data pertaining to cases with definitive diagnosis of P. ovale malaria in Jiangsu Province from 2012 to 2020 were captured from the National Notifiable Disease Report System and the Information Management System for Parasitic Disease Control in China, including the date of going abroad and returning to China, time of malaria infections overseas, date of malaria onset, initial diagnosis and definitive diagnosis. All data pertaining to epidemic status were descriptively analyzed. RESULTS A total of 347 cases of P. ovale malaria were reported in Jiangsu Province from 2012 to 2020, with the highest number seen in 2015 (71 cases). All cases were laboratory-confirmed overseas imported malaria cases, accounting for 14.32% of all reported malaria cases in Jiangsu Province during the period from 2012 to 2020. The 5 cities with the highest number of imported P. ovale malaria cases included Lianyungang City (53 cases, 15.27%), Nantong City (44 cases, 12.68%), Huai'an (44 cases, 12.68%), Taizhou City (44 cases, 12.68%) and Yangzhou City (36 cases, 10.37%). The highest number of imported P. ovale malaria cases was reported in October (39 cases, 11.24%), and the lowest number was seen in December (21 cases, 6.05%). P. ovale infections mainly occurred in were Equatorial Guinea (97 cases, 37.95%), Angola (60 cases, 17.29%) and Nigeria (40 cases, 11.53%). The median duration between returning to China and malaria onset was 64 (144) days, and 7.49% (26/347) of all cases developed malaria one year after returning to China. The initial diagnosis of P. ovale malaria was mainly made at county-level medical institutions (117 cases, 33.72%), and the definitive diagnosis was mainly made at city-level medical institutions (122 cases, 35.16%). The correct rate of initial diagnosis of P. ovale malaria increased from 0 in 2012 to 78.26% in 2020, appearing a tendency towards a rise year by year (χ2 = 50.90, P < 0.01). CONCLUSIONS Imported P. ovale malaria cases were reported in Jiangsu Province each year from 2012 to 2020, and P. ovale infections predominantly occurred in Africa. Initial and definitive diagnoses of P. ovale malaria were mainly made at city- and county-level medical institutions. Training on the detection ability of malaria parasites is recommended among grassroots microscopists to improve the diagnostic ability of P. ovale malaria, and consolidate the achievements of malaria elimination in Jiangsu Province.
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Affiliation(s)
- W M Wang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Y Y Cao
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - M M Yang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Y Lu
- Health and Quarantine Office, Nanjing Customs, China
| | - Y P Gu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - S Xu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - H Y Zhou
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - G D Zhu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
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Zhou HY, Ye JJ. [Research progress of ocular manifestations and treatments of human immunodeficiency virus and syphilis co-infection]. Zhonghua Yan Ke Za Zhi 2021; 57:865-870. [PMID: 34743474 DOI: 10.3760/cma.j.cn112142-20210127-00055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Acquired immune deficiency syndrome caused by human immunodeficiency virus (HIV) infection is a fatal disease involving multiple systems. Syphilis is a systemic chronic infection disease caused by treponema pallidum infection. In recent years, the incidence of the two infectious diseases in China has been on the rise. Both of them have the same high-risk population and similar transmission routes, and co-infection is increasing day by day. They can influence each other. Syphilis significantly increases the risk of HIV infection, and HIV is able to change the natural course of syphilis. HIV and syphilis co-infection leads to diverse ocular manifestations which are not typical or specific. This condition results in not only a high rate of missed diagnosis and misdiagnosis, but also a high rate of treatment failure and recurrence. There is a high correlation between ocular syphilis and neurosyphilis in HIV-positive patients. Many patients with HIV/syphilis co-infection visit eye clinics for the initial symptom. In order to provide reference for clinical diagnosis, treatment and research, this article reviews the recent advances on the studies of the co-infection of HIV and syphilis, including epidemiological characteristics, ocular manifestations and treatments. (Chin J Ophthalmol, 2021, 57: 865-870).
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Affiliation(s)
- H Y Zhou
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences&Peking Union Medical College, Beijing 100730, China
| | - J J Ye
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences&Peking Union Medical College, Beijing 100730, China
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Li JL, Tang JX, Wu JY, Yang MM, Liang C, Zhang MH, Li YS, Wang GX, Zhou HY, Zhu GD, Cao J. [Surveillance of Culex mosquitoes in Jiangsu Province from 2018 to 2019]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:510-512. [PMID: 34791850 DOI: 10.16250/j.32.1374.2020308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate the distribution and density of Culex mosquito populations and the resistance of Culex pipiens pallens to insecticides in Jiangsu Province in 2018 and 2019. METHODS During the period from June to October in 2018 and 2019, six counties (districts, cities) were sampled in southern, northern and central Jiangsu Province as surveillance sites. The density of Culex mosquitoes was measured overnight using the light trapping technique. In addition, Culex pipiens pallens mosquitoes were collected from Hai'an of Nantong City and Yandu District of Yancheng City, central Jiangsu Province, and the sensitivity of female first filial generations to dichlorodiphenyltrichloroethane (DDT), malation, proposur, beta cypermethrin and deltamethrin was tested using the standard WHO insecticide susceptibility test assay. RESULTS A total of 104 423 Culex mosquitoes were captured in six surveillance sites of Jiangsu Province in 2018 and 2019, and Culex quinquefasciatus (49.11%), Culex pipiens pallens (28.38%), and Culex tritaeniorhynchus (21.04%) were predominant species. The density of Culex mosquitoes started to increase since early June, peaked in July and tended to be low in late October. Culex pipiens pallens mosquitoes captured from Hai'an was susceptible to malation, while those from Yandu District were moderately resistant to malation. Culex pipiens pallens mosquitoes from both Yandu and Hai'an were moderately resistant to proposur, and were resistant to DDT, beta cypermethrin and deltamethrin. CONCLUSIONS Culex quinquefasciatus, Culex pipiens pallens and Culex tritaeniorhynchus are predominant Culex species in Jiangsu Province. Culex pipiens pallens is resistant to DT, beta cypermethrin and deltamethrin in central Jiangsu Province.
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Affiliation(s)
- J L Li
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - J X Tang
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - J Y Wu
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - M M Yang
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - C Liang
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - M H Zhang
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Y S Li
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - G X Wang
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - H Y Zhou
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - G D Zhu
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - J Cao
- WHO Collaborating Center for Research and Training on Malaria Elimination; Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention; Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology; Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
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Zhuang S, Gu X, Chai B, Feng T, Zhou CY, He Y, Shang HF, Zhou HY, Liu J, Xiong KP, Zhang YC, Mao CJ, Liu CF. [Transcranial sonographic characteristics of Parkinson's disease with symptoms of restless legs syndrome]. Zhonghua Yi Xue Za Zhi 2021; 101:1566-1571. [PMID: 34098683 DOI: 10.3760/cma.j.cn112137-20200907-02588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To evaluate the transcranial sonographic characteristics in patients with Parkinson's disease (PD) with symptoms of restless legs syndrome (RLS). Methods: Patients with diagnosis of definite PD from the Second Affiliated Hospital of Soochow University and 3 other participating hospitals between September 2018 and December 2019 were consecutively enrolled. Concurrent RLS symptoms were determined using Non-motor Symptoms Questionnaire. Transcranial sonography (TCS) and clinical assessments were performed during the same time and the related variables were compared between the two groups using t-test, non-parametric test, Chi-square test and Spearman correlation analysis, respectively. Results: Among 349 patients with PD, the prevalence of RLS symptoms was 22.6%. Compared to patients without RLS symptoms, those with RLS had longer disease duration (43.0 (24.0, 91.0) months vs 37.0 (20.0, 60.0) months, P<0.05) and higher Hoehn-Yahr stage (2.5 (2.0, 3.0) vs 2.0 (1.5, 2.5), P<0.01).TCS revealed that patients with RLS symptoms were more likely to have abnormality in the raphe nucleus (21.50% vs 7.78%, χ²=15.9, P<0.001) and increased third ventricle width ((6.22±1.97) mm vs (5.16±1.90) mm, P<0.001). No significant differences were found regarding parameters of substantia nigra. Conclusions: Concurrent RLS symptoms are common in PD patients. Abnormal echogenicity of raphe nucleus and increased third ventricle width could be characteristics of TCS in PD patients with RLS symptoms.
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Affiliation(s)
- S Zhuang
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - X Gu
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - B Chai
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - T Feng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, China
| | - C Y Zhou
- Department of Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Y He
- Department of Ultrasound, West China Hospital of Sichuan University, Chengdu 610041, China
| | - H F Shang
- Department of Neurology, West China Hospitalof Sichuan University, Chengdu 610041, China
| | - H Y Zhou
- Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200020, China
| | - J Liu
- Department of Neurology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200020, China
| | - K P Xiong
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - Y C Zhang
- Department of Ultrasound, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - C J Mao
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - C F Liu
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Zhou HY, de Kraker MEA, Mimoz O, Boisson M, Harbarth S, Buetti N. Concentration of chlorhexidine gluconate-alcohol for skin antisepsis at the intravascular catheter insertion site. J Hosp Infect 2021; 115:128-130. [PMID: 34022271 DOI: 10.1016/j.jhin.2021.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 05/04/2021] [Indexed: 11/28/2022]
Affiliation(s)
- H Y Zhou
- Infection Control Programme and WHO Collaborating Centre on Patient Safety, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland; Department of Hospital Infection Control, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - M E A de Kraker
- Infection Control Programme and WHO Collaborating Centre on Patient Safety, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - O Mimoz
- Service des Urgences Adultes & SAMU 86, Centre Hospitalier Universitaire de Poitiers, Poitiers, France; INSERM U1070, Pharmacologie des agents anti-infectieux, Université de Poitiers, Poitiers, France
| | - M Boisson
- Infection Control Programme and WHO Collaborating Centre on Patient Safety, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland; INSERM U1070, Pharmacologie des agents anti-infectieux, Université de Poitiers, Poitiers, France
| | - S Harbarth
- Infection Control Programme and WHO Collaborating Centre on Patient Safety, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - N Buetti
- Infection Control Programme and WHO Collaborating Centre on Patient Safety, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland; University of Paris, INSERM, IAME, Paris, France.
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Wu A, Wang L, Zhou HY, Ji CY, Xia SZ, Cao Y, Meng J, Ding X, Gold S, Jiang T, Cheng G. One year of SARS-CoV-2 evolution. Cell Host Microbe 2021; 29:503-507. [PMID: 33676588 PMCID: PMC7903908 DOI: 10.1016/j.chom.2021.02.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Since the outbreak of SARS-CoV-2, the etiologic agent of the COVID-19 pandemic, the viral genome has acquired numerous mutations with the potential to increase transmission. One year after its emergence, we now further analyze emergent SARS-CoV-2 genome sequences in an effort to understand the evolution of this virus.
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Affiliation(s)
- Aiping Wu
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, China
| | - Lulan Wang
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Hang-Yu Zhou
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, China
| | - Cheng-Yang Ji
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, China
| | - Shang Zhou Xia
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Yang Cao
- Center of Growth, Metabolism and Aging, Key Laboratory of Bio-Resource and Eco-Environment, Ministry of Education, College of Life Sciences, Sichuan University, No. 29 Wangjiang Road, Chengdu 610064, China
| | - Jing Meng
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, China
| | - Xiao Ding
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, China
| | - Sarah Gold
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Taijiao Jiang
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; Suzhou Institute of Systems Medicine, Suzhou, Jiangsu 215123, China; Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou 510005, China.
| | - Genhong Cheng
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA.
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Liu J, Xu YP, Li K, Ye Q, Zhou HY, Sun H, Li X, Yu L, Deng YQ, Li RT, Cheng ML, He B, Zhou J, Li XF, Wu A, Yi C, Qin CF. The m 6A methylome of SARS-CoV-2 in host cells. Cell Res 2021; 31:404-414. [PMID: 33510385 PMCID: PMC8115241 DOI: 10.1038/s41422-020-00465-7] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 12/22/2020] [Indexed: 01/30/2023] Open
Abstract
The newly identified Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has resulted in a global health emergency because of its rapid spread and high mortality. The molecular mechanism of interaction between host and viral genomic RNA is yet unclear. We demonstrate herein that SARS-CoV-2 genomic RNA, as well as the negative-sense RNA, is dynamically N6-methyladenosine (m6A)-modified in human and monkey cells. Combined RIP-seq and miCLIP analyses identified a total of 8 m6A sites at single-base resolution in the genome. Especially, epidemic strains with mutations at these identified m6A sites have emerged worldwide, and formed a unique cluster in the US as indicated by phylogenetic analysis. Further functional experiments showed that m6A methylation negatively regulates SARS-CoV-2 infection. SARS-CoV-2 infection also triggered a global increase in host m6A methylome, exhibiting altered localization and motifs of m6A methylation in mRNAs. Altogether, our results identify m6A as a dynamic epitranscriptomic mark mediating the virus-host interaction.
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Affiliation(s)
- Jun'e Liu
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, 100871, China
- Beijing Advanced Innovation Center for Genomics (ICG), Peking University, Beijing, 100871, China
- Biomedical Pioneering Innovation Center, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Beijing, 100871, China
| | - Yan-Peng Xu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Kai Li
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, 100871, China
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China
| | - Qing Ye
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Hang-Yu Zhou
- Suzhou Institute of System Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, Jiangsu, 215000, China
| | - Hanxiao Sun
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, 100871, China
| | - Xiaoyu Li
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, 100871, China
| | - Liu Yu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Yong-Qiang Deng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Rui-Ting Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Meng-Li Cheng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Bo He
- Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China
| | - Jia Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Xiao-Feng Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Aiping Wu
- Suzhou Institute of System Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, Jiangsu, 215000, China
| | - Chengqi Yi
- State Key Laboratory of Protein and Plant Gene Research, School of Life Sciences, Peking University, Beijing, 100871, China.
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China.
- Department of Chemical Biology and Synthetic and Functional Biomolecules Center, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China.
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Li JL, Zhou HY, Tang JX, Zhu GD, Cao J. [Strategies and studies of malaria vector control in Jiangsu Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:459-463. [PMID: 33185055 DOI: 10.16250/j.32.1374.2020174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Malaria was one of the major infectious diseases in Jiangsu Province, where Anopheles sinensis and An. anthropophagus are main vectors for malaria transmission. Following the concerted efforts for decades, the goal of malaria elimination was achieved in Jiangsu Province in 2019, and the vector control strategy has played a vital role during the progress towards malaria elimination in Jiangsu Province. Hereby, we review the historical distribution and ecological features of An. sinensis and An. anthropophagus and describe vector control strategies at different stages of malaria control in Jiangsu Province. In addition, the advances in the research of vector biology and control in Jiangsu Province are discussed, including vector identification, strain colonization, susceptibility to malaria parasites and insecticide resistance.
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Affiliation(s)
- J L Li
- Jiangsu Institute of Parasitic Diseases, WHO Collaborating Center for Research and Training on Malaria Elimination, Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Wuxi 214064, China
| | - H Y Zhou
- Jiangsu Institute of Parasitic Diseases, WHO Collaborating Center for Research and Training on Malaria Elimination, Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Wuxi 214064, China
| | - J X Tang
- Jiangsu Institute of Parasitic Diseases, WHO Collaborating Center for Research and Training on Malaria Elimination, Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Wuxi 214064, China
| | - G D Zhu
- Jiangsu Institute of Parasitic Diseases, WHO Collaborating Center for Research and Training on Malaria Elimination, Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Wuxi 214064, China
| | - J Cao
- Jiangsu Institute of Parasitic Diseases, WHO Collaborating Center for Research and Training on Malaria Elimination, Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Wuxi 214064, China
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Wang WM, Cao YY, Yang MM, Gu YP, Xu S, Zhou HY, Zhu GD. [Epidemic situation of malaria in Jiangsu Province in 2019]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 33:411-413. [PMID: 34505450 DOI: 10.16250/j.32.1374.2020221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To analyze the epidemic situation of malaria in Jiangsu Province in 2019, so as to provide the scientific basis for the development of the strategy for the prevention of re-introduction of imported malaria. METHODS The malaria case report information, epidemiological case investigation information, epidemic foci investigation and management report in Jiangsu Province in 2019 were collected, and all epidemiological data were descriptively analyzed. RESULTS A total of 244 malaria cases were reported in Jiangsu Province in 2019, and all cases were laboratory-confirmed overseas imported cases, including 4 cases with vivax malaria, 206 cases with falciparum malaria, 12 cases with malariae malaria and 22 cases with ovale malaria. In 2019, there were 12 malaria cases progressing into severe cases in Jiangsu Province, with one death. Nanjing, Nantong, Lianyungang, Taizhou and Changzhou cities contributed the largest number of malaria cases in 2019, with the number of malaria cases accounting for 59.84% of total cases in Jiangsu Province. The infections occurred in Papua New Guinea (2 cases), Pakistan (1 case) and 27 African countries (241 cases), including Angola, the Democratic Republic of the Congo, Nigeria, Equatorial Guinea, Cote d'Ivoire and so on. There were 77 cases (31.55%) with a visit to doctor on the day of onset, and 146 cases (59.84%) within 1 to 3 days after onset. In addition, there were 149 cases (61.06%) with definitive diagnosis at the first visit and 77 cases (31.55%) diagnosed within 1 to 3 days after the visit, and the mean duration from the visit to definitive diagnosis was (0.80 ± 1.59) d, which significantly shortened as compared to that (1.34 d ± 2.59 d) in 2018 (U = 2.53, P < 0.05). CONCLUSIONS Intensifying the surveillance and management of imported malaria and improving the diagnostic capability of imported malaria and the treatment of severe malaria cases are required to consolidate the achievements of malaria elimination in Jiangsu Province.
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Affiliation(s)
- W M Wang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Y Y Cao
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - M M Yang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Y P Gu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - S Xu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - H Y Zhou
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - G D Zhu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
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Cai LJ, Zhang Q, Zhang Y, Chen HX, Shi ZY, Du Q, Zhou HY. Clinical characteristics of very late-onset neuromyelitis optica spectrum disorder. Mult Scler Relat Disord 2020; 46:102515. [PMID: 33032051 DOI: 10.1016/j.msard.2020.102515] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND The typical age at onset of neuromyelitis optica spectrum disorder (NMOSD) is between 30 and 40 years. A growing awareness about the disease and advances in diagnostic techniques have led to an increase in the number of patients being diagnosed with very late-onset (VLO) NMOSD. This study compared the clinical characteristics, treatments, and prognoses between patients with VLO-NMOSD or late-onset (LO) NMOSD. METHODS Patients in our study were assigned to two groups based on age at onset of the disease: LO-NMOSD (50-70 years old at onset) and VLO-NMOSD (> 70 years old at onset). We compared clinical characteristics, magnetic resonance imaging of lesions, prognosis, and treatments between the two groups. RESULTS We collected data from 12 VLO-NMOSD patients with a median age at onset of 74.0 years (interquartile range, 72.6-75.9 years) and 104 LO-NMOSD patients with a median age at onset of 56.0 years (55.8-57.9 years). There were a high proportion of female patients in both the VLO-NMOSD group (9, 75.0%) and the LO-NMOSD group (91, 87.5%). Our study indicated that VLO-NMOSD patients had significantly higher expanded disability status scale (EDSS) scores (8.5 vs 4.0, p = 0.01), higher motor disability rates (41.7% vs 9.6%, p = 0.002), and higher mortality rates (25.0 vs 4.8%, p = 0.044) at last follow-up. However, patients with VLO-NMOSD had lower rates of immunosuppressant usage (50.0% vs 76.9%, p = 0.044). Age at onset was positively correlated with EDSS score at remission (r = 0.49, p < 0.001). CONCLUSION VLO-NMOSD was associated with higher EDSS score at remission, higher rates of mortality and motor disability, but lower rates of immunosuppressive treatment usage than LO-NMOSD. Future studies are needed to understand the effects of NMOSD on older patients, and to seek suitable treatment to improve their prognosis.
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Affiliation(s)
- L J Cai
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q Zhang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Zhang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H X Chen
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Z Y Shi
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Q Du
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - H Y Zhou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
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Xu YP, Zhou HY, Wang GC, Zhang Y, Yang T, Zhao Y, Li RT, Zhang RR, Guo Y, Wang X, Li XF, Qin CF, Tang R. Rational Design of a Replication-Competent and Inheritable Magnetic Viruses for Targeting Biomedical Applications. Small 2020; 16:e2002435. [PMID: 32954651 DOI: 10.1002/smll.202002435] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Infection with live-attenuated vaccines always inevitably induces side effects that reduce their safety. This study suggests a concept of magnetic virus produced by genetically modifying viral surfaces with Fe3 O4 nanoparticles (NPs) to control their tropisms. An iron-affinity peptide is designed to be displayed on the viral surface protein (VP1) of human enterovirus type 71 (EV71), a typical nonenveloped picornavirus, as the model. The modified EV71 can self-bind with Fe3 O4 NPs under physiological conditions, resulting in novel EV71-Fe3 O4 hybrid materials. This rationally engineered EV71 with Fe3 O4 retains its original biological infectivity, but its tropism can be precisely controlled by magnetism. Both in vitro and in vivo experiments demonstrate that EV71-Fe3 O4 can infect only a desired area within the limit of the applied magnetic field, which effectively reduces its pathological damage. More importantly, this characteristic of EV71 can be inherited due to the gene-induced coassembly of viruses and NPs. This achievement provides a proof of concept in virus vaccine improvement by a combination of gene modification and material incorporation, leading to great potential for biomedical developments.
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Affiliation(s)
- Yan-Peng Xu
- Center for Biomaterials and Biopathways Depart of Chemistry, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Hang-Yu Zhou
- Center for Biomaterials and Biopathways Depart of Chemistry, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
- Suzhou Institute of System Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Suzhou, 215000, China
| | - Guang-Chuan Wang
- Center for Biomaterials and Biopathways Depart of Chemistry, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
- Department of Genetics, Yale University School of Medicine, New Haven, CT, 06511, USA
| | - Ying Zhang
- Center for Biomaterials and Biopathways Depart of Chemistry, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
| | - Tianxu Yang
- Center for Biomaterials and Biopathways Depart of Chemistry, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
| | - Yueqi Zhao
- Center for Biomaterials and Biopathways Depart of Chemistry, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
| | - Rui-Ting Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Rong-Rong Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Yan Guo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Xiaoyu Wang
- Center for Biomaterials and Biopathways Depart of Chemistry, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
| | - Xiao-Feng Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Cheng-Feng Qin
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Ruikang Tang
- Center for Biomaterials and Biopathways Depart of Chemistry, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, Zhejiang Province, 310027, China
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Tang MY, Luo DW, Sun LB, Zhou HY, Wu SJ, Fu GX, Xiao JG. [Application of a modified paramedian lower lip-submandibular approach in maxillary (subtotal) total resection]. Hua Xi Kou Qiang Yi Xue Za Zhi 2020; 38:380-384. [PMID: 32865355 DOI: 10.7518/hxkq.2020.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To investigate the clinical efficacy of a modified paramedian lower lip-submandibular approach for maxillary (subtotal) total resection. METHODS Eleven patients of maxillary tumors underwent maxillary (subtotal) total resection through the modified paramedian lower lip-submandibular approach. Clinical follow-up visits were conducted to evaluate appearance restoration, facial nerve functional status, parotid gland functional status, and orbital region complication. RESULTS During the follow-up period of 6-36 months, the appearance of all 11 patients recovered well. All cases presented hidden scars. No facial nerve and parotid duct injury, lower eyelid edema, lower eyelid ectropion, or epiphora in all cases was observed. CONCLUSIONS Applying modified paramedian lower lip-submandibular approach to maxillary (subtotal) total resection effectively reduces incidence of orbital region complications including lower eyelid edema, lower eyelid ectropion, and epiphora, which often occur to traditional approach. The modified approach produces more subtle scars than other methods and should be applied to treatment of maxillary (subtotal) total resection.
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Affiliation(s)
- Meng-Ying Tang
- Dept. of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, China;Dept. of Oral Implantology, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, China
| | - Dao-Wen Luo
- Dept. of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, China
| | - Li-Bo Sun
- Dept. of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Hang-Yu Zhou
- Dept. of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Shuang-Jiang Wu
- Dept. of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Guang-Xin Fu
- Dept. of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jin-Gang Xiao
- Dept. of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, China;Dept. of Oral Implantology, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou 646000, China;Dept. of Oral and Maxillofacial Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
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Zhou HY, Sui ZY, Zhao FL, Sun YN, Wang HY, Han BH. A nanostructured porous carbon/MoO 2 composite with efficient catalysis in polysulfide conversion for lithium-sulfur batteries. Nanotechnology 2020; 31:315601. [PMID: 32294640 DOI: 10.1088/1361-6528/ab8989] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Lithium-sulfur batteries are considered as the next generation of energy storage systems because of their high theoretical specific capacity and energy density. Unfortunately, the sluggish reaction kinetics, weak adsorption toward to lithium polysulfides, and slow lithium ion diffusion impede the smooth electrochemical process, resulting in the lithium-sulfur batteries with the unsatisfactory cycling stability and rate performance. Since it is recognized that polar metal oxides and doped nitrogen in carbon materials have chemical interaction with lithium polysulfides, a nanostructured nitrogen-doped porous carbon/MoO2 composite is synthesized through a simple hydrothermal method by using graphene oxide nanoribbon and phosphomolybdic acid hydrate as precursors. The porous nanostructure promotes the charge and mass transport, while MoO2 nanoparticles immobilize lithium polysulfides via strong chemisorption and enhance the redox kinetics of polysulfides owing to the efficient catalytic activity in liquid-solid boundary. Consequently, the as-obtained nanostructured porous carbon/MoO2-based sulfur cathode exhibits low polarization, high initial discharge capacity (1403 mAh g-1 at 0.1 C), good rate capabilities (584 mAh g-1 at 4 C), and impressive cycling performance at 1 C (503 mAh g-1 after 500 cycles with capacity fade rate of 0.07% per cycle).
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Affiliation(s)
- Hang-Yu Zhou
- Key Laboratory of Applied Chemistry of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, People's Republic of China. CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
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Yu Y, Xu P, Zhou HY, Qiu CJ. Development of an x-ray detector by polycrystalline diamond and its application in Z-pinch x-ray detection. Rev Sci Instrum 2020; 91:043308. [PMID: 32357736 DOI: 10.1063/5.0006430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Large-grain-sized polycrystalline diamond films are fabricated by electron assisted chemical vapor deposition. A pure SP3 carbon bond in the cubic lattice structure is confirmed by Raman spectrum analysis. The grain size is on the order of several hundreds of μm or larger. Interlaced-finger electrodes are imprinted onto a 6 × 6 mm2 × 500 µm film to fabricate the x-ray detector. The width of every finger is 25 µm, and the distance between nearby fingers is 25 μm. Strong x ray irradiates when a pulsed current flows through a double-layer nested tungsten wire array in the Z-pinch. This diamond detector now works as one of the main x-ray detectors for the Z-pinch device. The diamond detector is calibrated using a plastic scintillator. The comparison between the signal measured by these two methods confirms that the large-grain-sized polycrystalline diamond is a good candidate for the detection of nanosecond pulsed x ray.
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Affiliation(s)
- Y Yu
- School of Physics, University of Science and Technology of China, Jinzhai Road 96#, 230026 Hefei, China
| | - P Xu
- School of Resources Environment and Safety Engineering, University of South China, Changsheng Road 28#, 421001 Hengyang, China
| | - H Y Zhou
- School of Physics, University of Science and Technology of China, Jinzhai Road 96#, 230026 Hefei, China
| | - C J Qiu
- School of Mechanical Engineering, University of South China, Changsheng Road 28#, 421001 Hengyang, China
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Zhou HY, Sui ZY, Amin K, Lin LW, Wang HY, Han BH. Investigating the Electrocatalysis of a Ti 3C 2/Carbon Hybrid in Polysulfide Conversion of Lithium-Sulfur Batteries. ACS Appl Mater Interfaces 2020; 12:13904-13913. [PMID: 32108468 DOI: 10.1021/acsami.9b23006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Despite the fact that lithium-sulfur batteries are regarded as promising next-generation rechargeable battery systems owning to high theoretical specific capacity (1675 mA h g-1) and energy density (2600 W h kg-1), several issues such as poor electrical conductivity, sluggish redox kinetics, and severe "shuttle effect" in electrodes still hinder their practical application. MXenes, novel two-dimensional materials with high conductivity, regulable interlayer spacing, and abundant functional groups, are widely applied in energy storage and conversion fields. In this work, a Ti3C2/carbon hybrid with expanded interlayer spacing is synthesized by one-step heat treatment in molten potassium hydroxide. The subsequent experiments indicate that the as-prepared Ti3C2/carbon hybrid can effectively regulate polysulfide redox conversion and has strong chemisorption interaction to polysulfides. Consequently, the Ti3C2/carbon-based sulfur cathode boosts the performance in working lithium-sulfur batteries, in terms of an ultrahigh initial discharge capacity (1668 mA h g-1 at 0.1 C), an excellent rate performance (520 mA h g-1 at 5 C), and an outstanding capacity retention of 530 mA h g-1 after 500 cycles at 1 C with a low capacity fade rate of 0.05% per cycle and stable Coulombic efficiency (nearly 99%). The above results indicate that this composite with high catalytic activity is a potential host material for further high-performance lithium-sulfur batteries.
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Affiliation(s)
- Hang-Yu Zhou
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- Key Laboratory of Applied Chemistry of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Zhu-Yin Sui
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- College of Chemistry & Chemical Engineering, Yantai University, Yantai 264005, China
| | - Kamran Amin
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Liang-Wen Lin
- Key Laboratory of Applied Chemistry of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Hai-Yan Wang
- Key Laboratory of Applied Chemistry of Hebei Province, College of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Bao-Hang Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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Li Z, Zhou HY, Zhao FL, Wang TX, Ding X, Han BH, Feng W. Three-dimensional Covalent Organic Frameworks as Host Materials for Lithium-Sulfur Batteries. Chin J Polym Sci 2020. [DOI: 10.1007/s10118-020-2384-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wang WM, Cao YY, Yang MM, Gu YP, Xu S, Zhou HY, Zhu GD, Cao J. [Epidemic situation of malaria in Jiangsu Province in 2018]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 31:649-651. [PMID: 32064812 DOI: 10.16250/j.32.1374.2019249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To analyze the epidemic situation of malaria in Jiangsu Province in 2018, so as to provide scientific evidence for formulating post-elimination malaria surveillance schemes and technical measures in Jiangsu Province. METHODS The malaria case report cards, epidemiological individual investigation forms of malaria cases and foci data were collected from Jiangsu Province in 2018, and the epidemic situation of malaria was descriptively analyzed. RESULTS A total of 243 malaria cases were reported in Jiangsu Province in 2018, which increased by 1.67% in relative to in 2017 (239 cases), and these cases included 171 cases with falciparum malaria, 14 cases with vivax malaria, 15 cases with quartan malaria, 42 cases with ovale malaria and a case with mixed infection of P. vivax and P. ovale. All cases were overseas imported, and no local secondary cases were found. The malaria cases were predominantly workers (76.54%). Nantong City (48 cases), Yangzhou City (33 cases) and Taizhou City (22 cases) were the most 3 cities with the largest number of malaria cases across Jiangsu Province. The malaria infections predominantly occurred in African areas (96.30%), and the other 9 cases had infections in Asia (8 cases) and Central America (1 case). There were 125 cases (51.44%) and 91 cases (37.45%) with definitive diagnosis at the day of admission and within 1 to 3 days post-admission, respectively. The percentages of definitive diagnosis at initial diagnosis were 48.27%, 88.76% and 97.30% at township-, county- and city-level medical institutions, respectively, and the percentage of definitive diagnosis at initial diagnosis was significantly lower in township-level medical institutions than in county- (χ2 = 21.47, P < 0.01) and city-level medical institutions (χ2 = 32.86, P < 0.01). CONCLUSIONS There are no local malaria cases in Jiangsu Province; however, the number of overseas imported malaria cases remains high in China. In the future, improving the post-elimination malaria surveillance system, enhancing the awareness of malaria prevention and control knowledge among high-risk populations, increasing the diagnostic capability of malaria in medical institutions, and improving the management of imported malaria cases should be performed to consolidate the achievements of malaria elimination.
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Affiliation(s)
- W M Wang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Y Y Cao
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - M M Yang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Y P Gu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - S Xu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - H Y Zhou
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - G D Zhu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - J Cao
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
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Zhou HY, Zhang Q. [The clinical meaning of co-existence of myelin oligodendroayte glycoprotein antibody and other autoimmune antibodies]. Zhonghua Yi Xue Za Zhi 2020; 100:324-327. [PMID: 32074773 DOI: 10.3760/cma.j.issn.0376-2491.2020.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- H Y Zhou
- Department of Neurology, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China
| | - Q Zhang
- Department of Neurology, West China Hospital, West China School of Medicine, Sichuan University, Chengdu 610041, China
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