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Dan Y, Xu J, Jian J, Meng L, Deng P, Yan J, Yuan Z, Zhang Y, Zhou H. In Situ Decoration of Bi 2S 3 Nanosheets on Zinc Oxide/Cellulose Acetate Composite Films for Photodegradation of Dyes under Visible Light Irradiation. Molecules 2023; 28:6882. [PMID: 37836724 PMCID: PMC10574506 DOI: 10.3390/molecules28196882] [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: 08/23/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
A novel Bi2S3-zinc oxide/cellulose acetate composite film was prepared through a blending-wet phase conversion and in situ precipitate method. The results revealed that the incorporation of Bi2S3 in the film increased the cavity density and uniformity, which provided additional space for the growth of active species and improved the interaction between dye pollutants and active sites. Zinc oxide acted as a mediator to facilitate the separation of electron-hole pairs effectively preventing their recombination, thus reducing the photo-corrosion of Bi2S3. As a result, the Bi2S3-ZnO/CA composite film exhibited favorable photocatalytic activity in the degradation of various dyes. Additionally, the composite film displayed effortless separation and recovery without the need for centrifugation or filtration, while maintaining its exceptional catalytic performance even after undergoing various processes.
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Affiliation(s)
- Yixiao Dan
- Hunan Engineering Research Center for Functional Film Materials, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; (Y.D.); (J.X.); (L.M.); (P.D.); (Z.Y.); (Y.Z.); (H.Z.)
| | - Jialiang Xu
- Hunan Engineering Research Center for Functional Film Materials, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; (Y.D.); (J.X.); (L.M.); (P.D.); (Z.Y.); (Y.Z.); (H.Z.)
| | - Jian Jian
- Hunan Engineering Research Center for Functional Film Materials, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; (Y.D.); (J.X.); (L.M.); (P.D.); (Z.Y.); (Y.Z.); (H.Z.)
| | - Lingxi Meng
- Hunan Engineering Research Center for Functional Film Materials, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; (Y.D.); (J.X.); (L.M.); (P.D.); (Z.Y.); (Y.Z.); (H.Z.)
| | - Pei Deng
- Hunan Engineering Research Center for Functional Film Materials, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; (Y.D.); (J.X.); (L.M.); (P.D.); (Z.Y.); (Y.Z.); (H.Z.)
| | - Jiaqi Yan
- Furong College, Hunan University of Arts and Science, Changde 415000, China
| | - Zhengqiu Yuan
- Hunan Engineering Research Center for Functional Film Materials, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; (Y.D.); (J.X.); (L.M.); (P.D.); (Z.Y.); (Y.Z.); (H.Z.)
| | - Yusheng Zhang
- Hunan Engineering Research Center for Functional Film Materials, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; (Y.D.); (J.X.); (L.M.); (P.D.); (Z.Y.); (Y.Z.); (H.Z.)
| | - Hu Zhou
- Hunan Engineering Research Center for Functional Film Materials, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China; (Y.D.); (J.X.); (L.M.); (P.D.); (Z.Y.); (Y.Z.); (H.Z.)
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Zou M, Tan C, Yuan Z, Wu M, Jian J, Zhang L, Zhang Y, Ma Z, Zhou H. In situ preparation of Ag@AgCl/Bio-veins composites and their photocatalytic activity and recyclability. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2273-9] [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: 04/05/2023]
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3
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Wang L, Tian XY, Liu ZH, He QY, Li JS, Liu SC, Jian J, Xu S. Fabrication of highly hydrophobic layered double hydroxide decorated with tannic acid cross-linked phosphazene as a novel flame retardant for polypropylene. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131356] [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: 03/30/2023]
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Wang L, Wu K, Ding CJ, Min JJ, Chen HP, Liu ZH, Xi DN, Zeng HY, Jian J, Xu S. Novel hierarchical carbon microspheres@layered double hydroxides@copper lignosulfonate architecture for polypropylene with enhanced flame retardant and mechanical performances. Int J Biol Macromol 2023; 235:123726. [PMID: 36801299 DOI: 10.1016/j.ijbiomac.2023.123726] [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: 12/02/2022] [Revised: 02/07/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
Due to the inherent defect of flammability of polypropylene (PP), a novel and highly efficient carbon microspheres@layered double hydroxides@copper lignosulfonate (CMSs@LDHs@CLS) flame retardant was designed and prepared, which was attributed to the strong electrostatic interaction between carbon microspheres (CMSs), layered double hydroxides (LDHs) and lignosulfonate as well as the chelation effect of lignosulfonate on copper ions, and then it was incorporated into the PP matrix. Significantly, CMSs@LDHs@CLS not only observably improved its dispersibility in PP matrix, but also simultaneously achieved excellent flame retardant properties for composites. With the addition of 20.0 % CMSs@LDHs@CLS, the limit oxygen index of CMSs@LDHs@CLS and PP composites (PP/CMSs@LDHs@CLS) reached 29.3 % and achieved the UL-94 V-0 rating. Cone calorimeter tests indicated that the peak heat release rate, total heat release and total smoke production of PP/CMSs@LDHs@CLS composites exhibited declines of 28.8 %, 29.2 % and 11.5 %, respectively, compared with those of PP/CMSs@LDHs composites. These advancements were attributed to the better dispersibility of CMSs@LDHs@CLS in PP matrix and illustrated that CMSs@LDHs@CLS observably reduced fire hazards of PP. The flame retardant property of CMSs@LDHs@CLS might relate to condensed phase flame retardant effect of char layer and catalytic charring of copper oxides.
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Affiliation(s)
- Lei Wang
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Kun Wu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Chi-Jie Ding
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Jun-Jie Min
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Hao-Ping Chen
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Zhi-Hao Liu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Dan-Ni Xi
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Hong-Yan Zeng
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Jian Jian
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, Hunan, China
| | - Sheng Xu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China.
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5
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Jian J, Chi Y, Zheyu X, Hong L, Xi J, Kunjie W. Urinary uromodulin and kidney stone disease: A mendelian randomization study and mediation analysis. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00435-9] [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: 02/12/2023]
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Zhong C, Zhang S, Yan D, Hu J, Yang H, Jian J, Pei Y, Duan T, Yan J, You K, Luo H. Engineering electrode/electrolyte interface charge transfer of TiO2-x photoanode with enriched surface oxygen vacancies for efficient water splitting. REACT CHEM ENG 2023. [DOI: 10.1039/d3re00088e] [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: 03/18/2023]
Abstract
Oxygen vacancy engineering is one of the most effective strategies for enhancing the photoelectrochemical (PEC) performance. In this work, an efficient TiO2-x nanofiber photoanode based on the thermal reduction of...
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Zhang Y, Li H, Lv C, Wu B, Yu Y, Zhong C, Lang Q, Liang Z, Li Y, Shi Y, Jian J, Xu F, Tian Y. HHLA2 promotes tumor progression by long non‑coding RNA H19 in human gallbladder cancer. Int J Oncol 2022; 61:112. [PMID: 35920182 PMCID: PMC9374468 DOI: 10.3892/ijo.2022.5402] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/16/2022] [Indexed: 12/24/2022] Open
Abstract
Advanced gallbladder cancer (GBC) is one of the most malignant of all types of biliary tract cancers that is associated with poor prognosis and high mortality. Accumulating evidence suggest that the B7 family of proteins serve an essential role in various types of cancers, including GBC. However, the potential function and regulatory mechanism of human endogenous retrovirus-H long terminal repeat-associating protein 2 (HHLA2; also known as B7-H7 or B7H5) in GBC remain poorly understood. In the present study, immunohistochemistry was used to examine the expression pattern of HHLA2 in samples from 89 patients with GBC. The possible association between HHLA2 expression and the clinicopathological parameters, including prognosis, were then assessed. Using lentiviruses, overexpression of HHLA2 plasmid or short-hairpin RNA (shRNA) of HHLA2 were transfected into GBC-SD cells to overexpress or knock down HHLA2 expression, respectively. The effects of HHLA2 overexpression and knockdown on the epithelial-mesenchymal transition (EMT) process on GBC-SD cells were measured by the western blotting and immunofluorescence staining of collagen I, N-cadherin, E-cadherin, vimentin and α-SMA. By contrast, changes in cell proliferation were measured using EdU assay. Cell invasion and migration were assessed using Transwell and wound-healing assays, respectively. In addition, a xenograft mouse model was established to evaluate the tumorigenic ability of the GBC cell line in vivo after stable transfection with lentivirus for HHLA2 overexpression or shRNA for HHLA2 knockdown. The regulatory relationships among TGF-β1, long non-coding RNA (lncRNA) H19 (H19) and HHLA2 were then investigated. The mRNA expression of lncRNA H19 were assessed using reverse transcription-quantitative PCR, whereas the expression levels of HHLA2 were detected by western blotting and immunofluorescence staining. HHLA2 expression was found to gradually increase as the stages of the GBC samples become more advanced. In addition, the expression level of HHLA2 was calculated to be positively associated with the Nevin stage, American Joint Committee on Cancer stage, tumor invasion and regional lymph node metastasis but was negatively associated with the overall patient survival (OS). In vitro experiments demonstrated that overexpression of HHLA2 promoted GBC migration, invasion, proliferation and EMT, whereas in vivo experiments found a promoting role of HHLA2 overexpression on GBC tumor growth. After transfection with lentiviruses encoding the overexpression plasmid of lncRNA H19, GBC migration, invasion, proliferation and EMT were increased. By contrast, knocking down HHLA2 expression suppressed TGF-β1- or lncRNA H19 overexpression-induced GBC migration, invasion, proliferation and EMT. In addition, HHLA2 knockdown significantly reduced the sizes of the GBC tumors in vivo. These results suggest that HHLA2 overexpression can promote GBC progression. Conversely, ablation of HHLA2 expression inhibited both TGF-β1- and lncRNA H19-induced GBC progression, suggesting that HHLA2 is a potential therapeutic target for this disease.
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Affiliation(s)
- Yizhou Zhang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Hanrong Li
- Department of Ophthalmology, Fourth Affiliated Hospital of China Medical University, Shenyang, Liaoning 110005, P.R. China
| | - Chao Lv
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Baokang Wu
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yang Yu
- Department of Surgery, Jinzhou Medical University, Jinzhou, Liaoning 121001, P.R. China
| | - Chongli Zhong
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Qi Lang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Zhiyun Liang
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yang Li
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yu Shi
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Jian Jian
- Department of Oncology, Liaoyang Central Hospital of China Medical University, Liaoyang, Liaoning 111010, P.R. China
| | - Feng Xu
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yu Tian
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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Wu Y, Zeng J, Zeng Y, Zhou H, Liu G, Jian J, Ding J. Polyethersulfone-polyvinylpyrrolidone composite membranes: Effects of polyvinylpyrrolidone content and polydopamine coating on membrane morphology, structure and performances. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.09.012] [Citation(s) in RCA: 3] [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: 10/23/2022]
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Jian J, Qiao Y, Li Y, Guo Y, Ma H, Liu B. Mutations in chronic myelomonocytic leukemia and their prognostic relevance. Clin Transl Oncol 2021; 23:1731-1742. [PMID: 33861431 DOI: 10.1007/s12094-021-02585-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 11/26/2020] [Accepted: 03/06/2021] [Indexed: 12/19/2022]
Abstract
Chronic myelomonocytic leukemia (CMML) is a hematologic malignancy that overlaps with myeloproliferative neoplasms (MPN) and myelodysplastic syndromes (MDS) and tends to transform into acute myeloid leukemia (AML). Among cases of CMML, > 90% have gene mutations, primarily involving TET2 (~ 60%), ASXL1 (~ 40%), SRSF2 (~ 50%), and the RAS pathways (~ 30%). These gene mutations are associated with both the clinical phenotypes and the prognosis of CMML, special CMML variants and pre-phases of CMML. Cytogenetic abnormalities and the size of genome are also associated with prognosis. Meanwhile, cases with ASXL1, DNMT3A, NRAS, SETBP1, CBL and RUNX1 mutations may have inferior prognoses, but only ASXL1 mutations were confirmed to be independent predictors of the patient outcome and were included in three prognostic models. Novel treatment targets related to the various gene mutations are emerging. Therefore, this review provides new insights to explore the correlations among gene mutations, clinical phenotypes, prognosis, and novel drugs in CMML.
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Affiliation(s)
- J Jian
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Y Qiao
- Institute of Hematology, Xi'an Central Hospital, Xi'an, Shaanxi, China
| | - Y Li
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - Y Guo
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China
| | - H Ma
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China. .,Department of Hematology, The First Affiliated Hospital, Lanzhou University, 1 Donggangxilu street, Lanzhou, Gansu, China.
| | - B Liu
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China. .,Department of Hematology, The First Affiliated Hospital, Lanzhou University, 1 Donggangxilu street, Lanzhou, Gansu, China.
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Wu K, Xu S, Tian XY, Zeng HY, Hu J, Guo YH, Jian J. Renewable lignin-based surfactant modified layered double hydroxide and its application in polypropylene as flame retardant and smoke suppression. Int J Biol Macromol 2021; 178:580-590. [PMID: 33631261 DOI: 10.1016/j.ijbiomac.2021.02.148] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/15/2021] [Accepted: 02/19/2021] [Indexed: 11/17/2022]
Abstract
A novel and environmentally friendly lignin-based surfactant sodium lignosulfonate (SLS) modified layered double hydroxide (LDH) flame retardant (LDH-LS) was fabricated via co-precipitation method, and subsequently incorporated into polypropylene (PP) matrix to obtain the PP and LDH-LS composites (PP/LDH-LS) by melt blending method. The XRD, FT-IR and XPS results indicated that SLS had successfully modified LDH by adsorbing on the surface of the LDH nanosheet. The WCA and SEM results revealed that the hydrophobic property of LDH-LS had been evidently improved, and it displayed a more homogeneous dispersion than virgin LDH in the PP matrix. Furthermore, cone calorimetry tests (CCT) illustrated that the peak heat release rate (PHRR), total heat release (THR), and total smoke release (TSR) of PP/LDH-LS composites exhibited declines of 62.9%, 25.1%, and 43.3% compared with those of Neat PP, respectively. Besides, the PP/LDH-LS achieved a LOI value of 29.4% and a UL-94 V-0 rating, whereas the PP/LDH showed only a LOI value of 25.2% and a UL-94 V-2 rating at 20 wt% loading. These improvements of flame retardant properties can be attributed to that the well-dispersed LDH-LS and synergistic flame retardancy between LDH and SLS.
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Affiliation(s)
- Kun Wu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Sheng Xu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China.
| | - Xian-Yao Tian
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Hong-Yan Zeng
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China.
| | - Jie Hu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Yi-Hui Guo
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Jian Jian
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
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Yuan Z, Yang H, Xu P, Li C, Jian J, Zeng J, Zeng L, Sui Y, Zhou H. Facile in situ synthesis of silver nanocomposites based on cellulosic paper for photocatalytic applications. Environ Sci Pollut Res Int 2021; 28:6411-6421. [PMID: 32990914 DOI: 10.1007/s11356-020-10900-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/23/2020] [Accepted: 09/16/2020] [Indexed: 06/11/2023]
Abstract
In this work, various photocatalysts were synthesized with an impregnation-precipitation process to in situ decorate Ag-based nanoparticles (NPs, including Ag3PO4, AgCl, Ag2O, and Ag2CO3) on the cellulosic paper. The structure and properties of the Ag-based composites were characterized by scanning electron microscopy, X-ray diffraction, transmitting electron microscopy, UV-vis diffuse reflectance spectra, and photocatalysis testing. The results showed that cellulosic paper is an efficient carrier which is feasible to grasp NPs due to the cellulosic nanofiber-network microstructure. Among the obtained samples, Ag2CO3 and AgCl NPs on cellulosic paper displayed high photocatalytic activity for the degradation of methyl orange under ultraviolet and visible light. However, photo lability of Ag2CO3 limits its recyclable. AgCl showed a better reutilization with the assistance of a surface plasmon resonance effect by Ag NPs that were grown in situ on the AgCl NPs, which formed Ag@AgCl nanocomposite structure. The photocatalytic activity of the AgCl/cellulosic paper decreased only slightly after three runs of photodegradation of methyl orange. The possible mechanism for photocatalysis was proposed. This work may provide a new method for the design of silver-based NPs/cellulosic paper nanocomposite photoreactors with favorable photocatalytic activities for industrial applications.
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Affiliation(s)
- Zhengqiu Yuan
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
- CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Guangzhou, 510640, China
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Huizhi Yang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Pan Xu
- School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, People's Republic of China
| | - Chengfeng Li
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Jian Jian
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Jianxian Zeng
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Lingwei Zeng
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Yuguang Sui
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Hu Zhou
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
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Jia B, Sun X, Chen M, Jian J, You K, Luo H, Huang Y, Luo X, Jin B, Wang N, Liang Z. Selective preparation and reaction kinetics of dimethyl carbonate from alcoholysis of methyl carbamate with methanol over ZnAl-LDO. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00158b] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Possible reaction mechanism of synthesis of DMC from MC and methanol over the ZnAl-LDO catalyst.
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Affiliation(s)
- Bo Jia
- College of Chemistry and Chemical Engineering, The Engineering Research Center of Advanced Catalysis, Ministry of Education, Hunan University, Changsha 410082, P. R. China
| | - Xiaoyu Sun
- College of Chemistry and Chemical Engineering, The Engineering Research Center of Advanced Catalysis, Ministry of Education, Hunan University, Changsha 410082, P. R. China
| | - Ming Chen
- College of Chemistry and Chemical Engineering, The Engineering Research Center of Advanced Catalysis, Ministry of Education, Hunan University, Changsha 410082, P. R. China
| | - Jian Jian
- College of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Kuiyi You
- College of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - He'an Luo
- College of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Yangqiang Huang
- College of Chemistry and Chemical Engineering, The Engineering Research Center of Advanced Catalysis, Ministry of Education, Hunan University, Changsha 410082, P. R. China
| | - Xiao Luo
- College of Chemistry and Chemical Engineering, The Engineering Research Center of Advanced Catalysis, Ministry of Education, Hunan University, Changsha 410082, P. R. China
| | - Bo Jin
- College of Chemistry and Chemical Engineering, The Engineering Research Center of Advanced Catalysis, Ministry of Education, Hunan University, Changsha 410082, P. R. China
| | - Nailiang Wang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750000, P. R. China
| | - Zhiwu Liang
- College of Chemistry and Chemical Engineering, The Engineering Research Center of Advanced Catalysis, Ministry of Education, Hunan University, Changsha 410082, P. R. China
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Min H, Li M, Shu H, Zhang X, Hu T, Wang W, Zhou Y, Jian J, Wang X. FeSe2 nanoparticle embedded in 3D honeycomb-like N-doped carbon architectures coupled with electrolytes engineering boost superior potassium ion storage. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137381] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wen J, You K, Zhao F, Jian J, Liu P, Ai Q, Luo H. AlCl3 immobilized on silicic acid as efficient Lewis acid catalyst for highly selective preparation of dicyclohexylamine from the vapor phase hydroamination of cyclohexene with cyclohexylamine. CATAL COMMUN 2020. [DOI: 10.1016/j.catcom.2020.106112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Xu M, He M, Zhang H, Jian J, Pan Y, Liu X, Chen L, Meng X, Chen H, Li Z, Xiao X, Yu S, Yu S, Cai X. High-performance coherent optical modulators based on thin-film lithium niobate platform. Nat Commun 2020; 11:3911. [PMID: 32764622 PMCID: PMC7411015 DOI: 10.1038/s41467-020-17806-0] [Citation(s) in RCA: 111] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 07/16/2020] [Indexed: 11/09/2022] Open
Abstract
The coherent transmission technology using digital signal processing and advanced modulation formats, is bringing networks closer to the theoretical capacity limit of optical fibres, the Shannon limit. The in-phase/quadrature electro-optic modulator that encodes information on both the amplitude and the phase of light, is one of the underpinning devices for the coherent transmission technology. Ideally, such modulator should feature a low loss, low drive voltage, large bandwidth, low chirp and compact footprint. However, these requirements have been only met on separate occasions. Here, we demonstrate integrated thin-film lithium niobate in-phase/quadrature modulators that fulfil these requirements simultaneously. The presented devices exhibit greatly improved overall performance (half-wave voltage, bandwidth and optical loss) over traditional lithium niobate counterparts, and support modulation data rate up to 320 Gbit s-1. Our devices pave new routes for future high-speed, energy-efficient, and cost-effective communication networks.
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Affiliation(s)
- Mengyue Xu
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Mingbo He
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Hongguang Zhang
- National Information Optoelectronics Innovation Center, China Information and Communication Technologies Group Corporation (CICT), 430074, Wuhan, China
- State Key Laboratory of Optical Communication Technologies and Networks, China Information and Communication Technologies Group Corporation (CICT), 430074, Wuhan, China
| | - Jian Jian
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Ying Pan
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Xiaoyue Liu
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Lifeng Chen
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Xiangyu Meng
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Hui Chen
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Zhaohui Li
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Xi Xiao
- National Information Optoelectronics Innovation Center, China Information and Communication Technologies Group Corporation (CICT), 430074, Wuhan, China.
- State Key Laboratory of Optical Communication Technologies and Networks, China Information and Communication Technologies Group Corporation (CICT), 430074, Wuhan, China.
| | - Shaohua Yu
- National Information Optoelectronics Innovation Center, China Information and Communication Technologies Group Corporation (CICT), 430074, Wuhan, China
- State Key Laboratory of Optical Communication Technologies and Networks, China Information and Communication Technologies Group Corporation (CICT), 430074, Wuhan, China
| | - Siyuan Yu
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China
| | - Xinlun Cai
- State Key Laboratory of Optoelectronic Materials and Technologies and School of Electronics and Information Technology, Sun Yat-sen University, 510006, Guangzhou, China.
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Ma Y, Zeng J, Zeng Y, Zhou H, Liu G, Liu Y, Zeng L, Jian J, Yuan Z. Preparation and performance of poly(4-vinylpyridine)-b-polysulfone-b-poly(4-vinylpyridine) triblock copolymer/polysulfone blend membrane for separation of palladium (II) from electroplating wastewaters. J Hazard Mater 2020; 384:121277. [PMID: 31581018 DOI: 10.1016/j.jhazmat.2019.121277] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 09/19/2019] [Accepted: 09/20/2019] [Indexed: 06/10/2023]
Abstract
In order to separate palladium (II) from electroplating wastewaters, poly(4-vinylpyridine)-b-polysulfone-b-poly(4-vinylpyridine) (P4VP-PSF-P4VP) / polysulfone blend membranes were fabricated by combining non-solvent induced phase separation, surface segregation and self-assembly of block copolymer. Amphiphilic P4VP-PSF-P4VP was used as the membrane base material, which was synthesized by introducing the functional monomer of 4-vinylpyridine (4-VP), and polysulfone as the additive. Effects of blend ratio and 4-VP content on membrane performance, such as structure, hydrophilicity, pure water flux and adsorption capacity towards Pd (II), were investigated. The membranes exhibited dense surface structure and low roughness due to surface segregation and self-assembly of P4VP-PSF-P4VP. The presence of 4-VP increased hydrophilicity and water flux of membrane, and it also provided good adsorption capacity towards Pd (II) (up to 103.1 ± 5.15 mg/g). Further, the membrane was used to separate Pd (II) from simulated wastewaters during filtration. It showed good rejection ability and high selectivity towards Pd (II) in co-existence of Cu (II) and Ni (II), and selectivity coefficients of Pd/Cu and Pd/Ni are 41.9 ± 1.88 and 97.8 ± 4.32, respectively. In filtration process of actual electroplating wastewater, the membrane also exhibited excellent rejection performance (Pd (II) rejection reached up to 96.8 ± 2.71%). Perhaps it is suitable for future practice applications.
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Affiliation(s)
- Yichang Ma
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan 411201, China
| | - Jianxian Zeng
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan 411201, China.
| | - Yajie Zeng
- School of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Hu Zhou
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan 411201, China
| | - Guoqing Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan 411201, China
| | - Yuan Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan 411201, China
| | - Lingwei Zeng
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan 411201, China
| | - Jian Jian
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan 411201, China
| | - Zhengqiu Yuan
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Xiangtan 411201, China
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17
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Zhou H, Xiong YZ, Wang TF, Zeng JX, Liu H, Jian J, Yuan ZQ, Zhou ZH, Zeng LW, Liu GQ. Synthesis of Polyurethane Hydrogel and Polyurethane Thermoplastic Elastomer Composite Based Separation Membranes. J Nanosci Nanotechnol 2020; 20:900-908. [PMID: 31383085 DOI: 10.1166/jnn.2020.16941] [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: 06/10/2023]
Abstract
A series of polyurethane hydrogel and polyurethane thermoplastic elastomer composite based separation membranes were successfully prepared via wet phase inversion method. The morphology, chemical structure, phase transition temperature and crystallinity of the polyurethane (PU) membranes were characterized by SEM, FTIR, DSC, and XRD, respectively. The SEM observation showed that the PU membranes exhibited irregular porous structure on the surface and path of the hole was flexural and asymmetrical in cross-section. The FTIR analysis demonstrated that thermalsensitive groups and pH-sensitive components (-N(CH₃)-) were incorporated into the PU network. The DSC experiment and XRD experiment showed that the regular arrangement of PU network was destroyed partly due to the introduction of polyurethane thermoplastic elastomer. The equilibrium swelling ratio (ESR) and water flux (J) for PU membranes clearly decreased and increased with functional groups and sophisticated structure of PU membranes, respectively. In addition, the permeation experiments indicated that the permeation percentage (P) of the glycine was strongly affected by the external temperature and pH value.
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Affiliation(s)
- Hu Zhou
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Yi-Zhi Xiong
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Tao-Fen Wang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Jian-Xian Zeng
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Huan Liu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Jian Jian
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Zheng-Qiu Yuan
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Zhi-Hua Zhou
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Ling-Wei Zeng
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Guo-Qing Liu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
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18
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Huang C, Sun T, Shu H, Chen M, Liang Q, Zhou Y, Gao P, Xu S, Yang X, Wu M, Jian J, Wang X. Multifunctional reaction interfaces for capture and boost conversion of polysulfide in lithium-sulfur batteries. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.135658] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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Huang C, Zhou Y, Shu H, Chen M, Liang Q, Jiang S, Li X, Sun T, Han M, Zhou Y, Jian J, Wang X. Synergetic restriction to polysulfides by hollow FePO4 nanospheres wrapped by reduced graphene oxide for lithium–sulfur battery. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135135] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Xiang L, Zhou TJ, Zhou LL, Luo J, Qin Z, You JZ, Jian J, Zhao ZY, Zhou YS, Ye YC, Wang HR, Wang BN, Li MY. Influenza a virus and Streptococcus pneumonia coinfection potentially promotes bacterial colonization and enhances B lymphocyte depression and reduction. J BIOL REG HOMEOS AG 2019; 33:1437-1449. [PMID: 31637902 DOI: 10.23812/19-240-a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Influenza has frequently been epidemic in recent years. However, the mechanisms of severe pneumonia with postinfluenza Streptococcus pneumoniae (SP) secondary infection have not been fully understood. In this study, we explored the mechanisms of pneumonia in postinfluenza A virus (IAV) infection via a mouse model. Mice were intranasally inoculated with SP three days after IAV inoculation. We then collected samples at three time points to dynamically observe the pathological progression. In IAV infection alone, lymphocyte infiltration and widened alveolar intervals were observed. In the blood, levels of the CD19+, CD19+CD21+ and CD19+CD79β+B lymphocyte subpopulations were reduced, and IFN-γ and IL-10 were elevated. Slight atrophy was seen in the spleen, which was due to splenic B lymphocyteinitiated apoptosis through the mitochondrial pathway. When SP infection occurred after IAV infection, the pulmonary inflammation was significantly aggravated; a fair number of lymphocytes and neutrophils infiltrated simultaneously with exfoliated bronchial epithelial cells, vascular endothelial cells, widened alveolar septum and hemorrhaging. Increasing edema fluid and bacteria accumulated in the alveolar cavity. Decreased CD19+, CD19+CD21+ and CD19+CD79β+B lymphocyte subpopulations and increased interferon gamma (IFN-γ) or interleukin 10 (IL-10) were more prominent compared to those with viral infection alone. Spleen atrophy resulting from coinfection was more obvious because of massive splenic B lymphocyte apoptosis through the mitochondrial pathway compared to viral infection alone. This study shows that although inflammation caused by SP infection alone was temporary, preceding IAV infection provided favorable conditions for SP colonization and multiplication by destroying lung structure and suppressing humoral immunity. Synergistic IAV-SP coinfection is likely to facilitate more SP colonization and promote B lymphocyte-suppression and reduction. Eventually, the pneumonia worsened.
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Affiliation(s)
- L Xiang
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu City, Sichuan P.R. China
| | - T J Zhou
- Department of Pathology, the Affiliated Hospital of Southwest Medical University, Luzhou City, Sichuan Province, China
| | - L L Zhou
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu City, Sichuan P.R. China
| | - J Luo
- Department of Clinical Laboratory, the First Affiliated Hospital of Chengdu Medical College, Chengdu City, Sichuan Province, China
| | - Z Qin
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu City, Sichuan P.R. China
| | - J Z You
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu City, Sichuan P.R. China
| | - J Jian
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu City, Sichuan P.R. China
| | - Z Y Zhao
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu City, Sichuan P.R. China
| | - Y S Zhou
- Department of Pathogen Biology, Preclinical Medicine College, Southwest Medical University, Luzhou City, Sichuan Province, China
| | - Y C Ye
- Experiment Center of Pathogen Biology and Immunology, Preclinical Medicine College, Southwest Medical University, Luzhou City, Sichuan Province, China
| | - H R Wang
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu City, Sichuan P.R. China
| | - B N Wang
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu City, Sichuan P.R. China
| | - M Y Li
- Department of Microbiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu City, Sichuan P.R. China
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21
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Wen J, You K, Liu X, Jian J, Zhao F, Liu P, Ai Q, Luo H. Highly selective one-step catalytic amination of cyclohexene to cyclohexylamine over HZSM-5. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.05.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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22
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Jian J, Xu M, Liu L, Luo Y, Zhang J, Liu L, Zhou L, Chen H, Yu S, Cai X. High modulation efficiency lithium niobate Michelson interferometer modulator. Opt Express 2019; 27:18731-18739. [PMID: 31252810 DOI: 10.1364/oe.27.018731] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 06/13/2019] [Indexed: 06/09/2023]
Abstract
We demonstrate highly efficient lithium niobate thin film Michelson interferometer modulators with half-wave voltage length product of 1.4 V∙cm. Amorphous silicon grating couplers have been incorporated to achieve a 3.8-dB/port waveguide-fiber coupling loss. Devices with 1-mm phase shifter arms have a footprint of 2.5 mm × 1.7 mm. The demonstrated modulation data rates is up to 35 Gb/s.
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23
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Zeng J, Zhang Z, Zhou H, Liu G, Liu Y, Zeng L, Jian J, Yuan Z. Ion‐imprinted poly(methyl methacrylate‐vinyl pyrrolidone)/poly(vinylidene fluoride) blending membranes for selective removal of ruthenium(III) from acidic water solutions. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4619] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jianxian Zeng
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology; Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Xiangtan 411201 China
| | - Zhe Zhang
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology; Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Xiangtan 411201 China
| | - Hu Zhou
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology; Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Xiangtan 411201 China
| | - Guoqing Liu
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology; Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Xiangtan 411201 China
| | - Yuan Liu
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology; Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Xiangtan 411201 China
| | - Lingwei Zeng
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology; Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Xiangtan 411201 China
| | - Jian Jian
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology; Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Xiangtan 411201 China
| | - Zhengqiu Yuan
- School of Chemistry and Chemical EngineeringHunan University of Science and Technology; Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Xiangtan 411201 China
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24
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Liu P, You K, Deng R, Chen Z, Jian J, Zhao F, Liu P, Ai Q, Luo H. Hydrotalcite-derived Co-MgAlO mixed metal oxides as efficient and stable catalyst for the solvent-free selective oxidation of cyclohexane with molecular oxygen. Molecular Catalysis 2019. [DOI: 10.1016/j.mcat.2019.01.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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25
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Jian J. Reports-filling the gap between scientific research and popular science. Reports 2019. [DOI: 10.36612/reports.2009.1.1] [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: 11/22/2022] Open
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26
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Tong C, Xie S, Zhou H, Li N, Gong L, Jian J, Zhang C, Xu L, Xu J. Hydrothermal Synthesis of PAA-Coated NaYF₄:Yb 3+, Er 3+ Nanophosphors with Predicted Morphology, Phase and Enhanced Upconversion Luminescence Properties. J Nanosci Nanotechnol 2018; 18:8258-8268. [PMID: 30189945 DOI: 10.1166/jnn.2018.16384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, well-defined PAA-coated NaYF4:Yb3+, Er3+ nanophosphors were synthesized via a poly(acrylic acid) (PAA) mediated hydrothermal process. The rational control of initial reaction conditions, such as hydrothermal temperature, pH value of precursor-solution, added amount of PAA, and molecular weight of PAA ligand, resulted in upconversion of NaYF4:Yb3+, Er3+ phosphors with varying crystal phases (α and β) and morphologies (e.g., nanosphere, submicrorod, microrod, microtube, and microprism). By assessing the upconversion luminescent properties of the synthesized NaYF4:Yb3+, Er3+ phosphors upon excitation by 980 nm infrared light, it was demonstrated that the β-phase NaYF4:Yb3+, Er3+ phosphors generally presented stronger upconversion luminescent than α-phase NaYF4:Yb3+, Er3+ phosphors and orthorhombic phase of YF3:Yb3+, Er3+ sample. Additionally, the β-phase NaYF4:Yb3+, Er3+ phosphors with hollow microtube morphology presented higher upconversion luminescent intensity than phosphors of other morphologies. This may be due to microtubes having larger surface area (inner and outer surfaces), which promoted the absorption efficiency under similar excitation conditions, therefore generating higher luminescent intensity. Findings form this study suggest for precisely controlled growth of other complex rare earth fluoride compounds and provide a reference for exploration of component-, phase- and morphology-dependent upconversion luminescence properties.
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Affiliation(s)
- Chao Tong
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, P. R. China
| | - Shaowen Xie
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, P. R. China
| | - Hu Zhou
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Na Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, P. R. China
| | - Liang Gong
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, P. R. China
| | - Jian Jian
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Changfan Zhang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, P. R. China
| | - Lijian Xu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, P. R. China
| | - Jianxiong Xu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, Zhuzhou 412007, P. R. China
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27
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Jian J, Xu P, Chen H, He M, Wu Z, Zhou L, Liu L, Yang C, Yu S. High-efficiency hybrid amorphous silicon grating couplers for sub-micron-sized lithium niobate waveguides. Opt Express 2018; 26:29651-29658. [PMID: 30469926 DOI: 10.1364/oe.26.029651] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 10/08/2018] [Indexed: 06/09/2023]
Abstract
We demonstrate hybrid amorphous silicon uniform grating couplers for efficient coupling between the standard single-mode fiber and sub-micron lithium niobate waveguides. The grating couplers exhibit coupling efficiency of -3.06 dB and 1-dB bandwidth of 55 nm. The amorphous silicon grating couplers can also provide a universal building block applicable to other photonic platforms such as silicon nitride waveguides, whose moderate refractive index values prevent high efficiency grating couplers to be fabricated in the native waveguide.
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28
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Zhou H, Zhou J, Wang T, Zeng J, Liu L, Jian J, Zhou Z, Zeng L, Liu Q, Liu G. In-situ preparation of silver salts/collagen fiber hybrid composites and their photocatalytic and antibacterial activities. J Hazard Mater 2018; 359:274-280. [PMID: 30041120 DOI: 10.1016/j.jhazmat.2018.07.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 01/08/2018] [Revised: 06/23/2018] [Accepted: 07/09/2018] [Indexed: 06/08/2023]
Abstract
To promote the utilization of collagen fiber, silver salts/collagen fiber hybrid composites with photocatalytic and antibacterial activities were successfully prepared in this study via the in-situ organic-inorganic process. The surface morphology, chemical composition and structure were discussed. Scanning electron microscopy (SEM) observation showed that the silver salts/collagen fiber hybrid composites were successfully prepared with silver salt particles (300-500 nm) distributing evenly on the surface of collagen fiber. X-ray diffraction (XRD) patterns and Fourier transform infrared spectroscopy (FTIR) analysis provided strong evidence for the successful coating of silver salts on the surface of collagen fiber and the hybrid mechanism was subsequently discussed. The photocatalytic activity was evaluated by degrading methyl orange (MO) under ultraviolet (UV) light and visible light, respectively. The results indicated that AgCl/Collagen Fiber showed the most efficient photocatalytic activity under UV and visible light irradiation. Furthermore, the introduction of Ag+ endowed the photocatalysts with antibacterial performance, which was investigated by measuring the width of the bacteriostatic belts. The results indicated the antibacterial activity of the composites, proving that the photocatalysts were durable and reusable.
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Affiliation(s)
- Hu Zhou
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Jie Zhou
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Taofen Wang
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Jianxian Zeng
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Lihua Liu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Jian Jian
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China.
| | - Zhihua Zhou
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Lingwei Zeng
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Qingquan Liu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
| | - Guoqing Liu
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule, Ministry of Education, Hunan Provincal Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China
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Deng R, You K, Yi L, Zhao F, Jian J, Chen Z, Liu P, Ai Q, Luo H. Solvent-Free, Low-Temperature, Highly Efficient Catalytic Nitration of Toluene with NO 2 Promoted by Molecular Oxygen over Immobilized AlCl 3–SiO 2. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02786] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Renjie Deng
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Kuiyi You
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Lei Yi
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Fangfang Zhao
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Jian Jian
- School of Chemistry and Chemical Engineering, University of Science and Technology of Hunan, Xiangtan 411201, P. R. China
| | - Zhenpan Chen
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Pingle Liu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - Qiuhong Ai
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
| | - He’an Luo
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China
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Proulx J, Agustin M, Sullivan G, VanWees S, Jian J, Hilton S, Moraru C. Short communication: Influence of pulsed light treatment on the quality and sensory characteristics of Cheddar cheese. J Dairy Sci 2017; 100:1004-1008. [DOI: 10.3168/jds.2016-11579] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 11/04/2016] [Indexed: 11/19/2022]
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Xu X, Hui ES, Mok MY, Jian J, Lau CS, Mak HKF. Structural Brain Network Reorganization in Patients with Neuropsychiatric Systemic Lupus Erythematosus. AJNR Am J Neuroradiol 2017; 38:64-70. [PMID: 27633804 DOI: 10.3174/ajnr.a4947] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 07/28/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND PURPOSE Patients with neuropsychiatric systemic lupus erythematosus have worse outcomes compared with those with systemic lupus erythematosus. A better understanding of the mechanisms of neuropsychiatric systemic lupus erythematosus could potentially improve diagnosis and management. The goal of this study was to investigate the differences in the structural brain network of patients with neuropsychiatric systemic lupus erythematosus compared with patients with systemic lupus erythematosus by using brain connectivity analysis. MATERIALS AND METHODS We recruited 20 subjects for each patient cohort and age-matched healthy controls. The topology and efficiency of the network and the characteristics of various brain hubs were investigated by using brain connectivity analysis of diffusion MR imaging data. RESULTS There were more extensive reorganizations in the structural brain network of patients with neuropsychiatric systemic lupus erythematosus than in patients with systemic lupus erythematosus. For example, the network of the former had significantly decreased clustering coefficient and local efficiency. They also had significantly lower nodal efficiency in the superior temporal gyrus (P = .046) and middle temporal gyrus (P = .041). CONCLUSIONS Our results hint at a plausible relationship between the neuropsychiatric symptoms and reorganization of the structural brain network of patients with systemic lupus erythematosus. Brain connectivity analysis may be a potential tool to subtype these patients.
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Affiliation(s)
- X Xu
- From the Department of Diagnostic Radiology (X.X., E.S.H., H.K.F.M.)
| | - E S Hui
- From the Department of Diagnostic Radiology (X.X., E.S.H., H.K.F.M.)
| | - M Y Mok
- Department of Biomedical Sciences (M.Y.M.), City University of Hong Kong, Kowloon Tong, Hong Kong Special Administrative Region
| | - J Jian
- Radiology Department (J.J.), The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi China
| | - C S Lau
- Division of Rheumatology and Clinical Immunology (C.S.L.), Department of Medicine, University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region
| | - H K F Mak
- From the Department of Diagnostic Radiology (X.X., E.S.H., H.K.F.M.)
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Jian J, Li C, Xu J, Qiao D, Mi G, Chen X, Tang M. Associations of serotonin receptor gene HTR3A, HTR3B, and HTR3A haplotypes with bipolar disorder in Chinese patients. Genet Mol Res 2016; 15:gmr8671. [PMID: 27706728 DOI: 10.4238/gmr.15038671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Single nucleotide polymorphisms (SNPs) in HTR3A and HTR3B have been reported to be associated with bipolar disorder in European and Japanese populations. We explored the roles of 21 tag SNPs in HTR3A and HTR3B in susceptibility to bipolar disorder in a Chinese cohort. Twenty-one Tag SNPs were genotyped in a study consisting of 130 patients with bipolar disorder, who visited Shandong Mental Health Center between June 2013 and May 2014, and 109 healthy individuals as controls. All of the tag SNPs were genotyped using Sequenom MassArray matrix-assisted laser desorption/ionization time of flight spectrometry. Plink 1.07, Haploview 4.2, and SPSS 20.0 were used for the analysis of the genotypes and the associations of the haplotypes with bipolar disorder. Association analyses of tag SNPs detected significant associations with the A allele in HTR3A rs1176719 (P = 0.030) and the C allele in HTR3A rs1176713 (P = 0.048). Haplotype-based association analyses indicated a statistically significant (P = 0.035) five-SNP haplotype (rs1062613:C, rs11604247:C, rs1176722:G, rs2276302:A, rs1176719:G) of linkage disequilibrium in block 3. Analysis of our small Chinese sample revealed a significant association of HTR3A with bipolar disorder, but yielded no evidence of an association between HTR3B and bipolar disorder. Furthermore, evidence for an association was found for a haplotype of HTR3A. Studies with larger Chinese samples are needed to verify our findings.
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Affiliation(s)
- J Jian
- Shandong University School of Medicine, Ji'nan, Shandong, China.,Shandong Mental Health Center Ji'nan, Shandong, China
| | - C Li
- Shandong University School of Medicine, Ji'nan, Shandong, China.,Shandong Mental Health Center Ji'nan, Shandong, China
| | - J Xu
- Business Management Department, Shandong Center for Disease Control and Prevention, Jinan, Shandong, China
| | - D Qiao
- Shandong Mental Health Center Ji'nan, Shandong, China
| | - G Mi
- Shandong Mental Health Center Ji'nan, Shandong, China
| | - X Chen
- Shandong Mental Health Center Ji'nan, Shandong, China
| | - M Tang
- Shandong Mental Health Center Ji'nan, Shandong, China
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Liu S, You K, Jian J, Zhao F, Zhong W, Yin D, Liu P, Ai Q, Luo H. Mesoporous silica gel as an effective and eco-friendly catalyst for highly selective preparation of cyclohexanone oxime by vapor phase oxidation of cyclohexylamine with air. J Catal 2016. [DOI: 10.1016/j.jcat.2016.03.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jian J, You K, Luo Q, Gao H, Zhao F, Liu P, Ai Q, Luo H. Supported Ni–Al–VPO/MCM-41 As Efficient and Stable Catalysts for Highly Selective Preparation of Adipic Acid from Cyclohexane with NO2. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.6b00008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jian Jian
- School
of Chemical Engineering, Xiangtan University, Xiangtan 411105, P.R. China
| | - Kuiyi You
- School
of Chemical Engineering, Xiangtan University, Xiangtan 411105, P.R. China
- National & Local United Engineering Research Center for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, P. R. China
| | - Qing Luo
- School
of Chemical Engineering, Xiangtan University, Xiangtan 411105, P.R. China
| | - Hongxu Gao
- School
of Chemical Engineering, Xiangtan University, Xiangtan 411105, P.R. China
| | - Fangfang Zhao
- School
of Chemical Engineering, Xiangtan University, Xiangtan 411105, P.R. China
| | - Pingle Liu
- School
of Chemical Engineering, Xiangtan University, Xiangtan 411105, P.R. China
- National & Local United Engineering Research Center for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, P. R. China
| | - Qiuhong Ai
- School
of Chemical Engineering, Xiangtan University, Xiangtan 411105, P.R. China
- National & Local United Engineering Research Center for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, P. R. China
| | - He’an Luo
- School
of Chemical Engineering, Xiangtan University, Xiangtan 411105, P.R. China
- National & Local United Engineering Research Center for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, P. R. China
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Jian J, You K, Duan X, Gao H, Luo Q, Deng R, Liu P, Ai Q, Luo H. Boosting one-step conversion of cyclohexane to adipic acid by NO2 and VPO composite catalysts. Chem Commun (Camb) 2016; 52:3320-3. [PMID: 26821909 DOI: 10.1039/c5cc09840h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We demonstrate VPO composites as efficient catalysts for highly selective oxidation of cyclohexane to adipic acid with NO2. In particular, the Ni-Al-VPO composite catalyst exhibits the striking conversion of cyclohexane (60.6%) and exceptionally high selectivity towards adipic acid (85.0%). Moreover, N2O is an environmentally harmful gas, and its yield in the present process is only 0.03 t/t adipic acid, which is far below that obtained using the industrial method (0.3 t/t adipic acid). This work provides a new strategy for the one-step synthesis of dicarboxylic acids from cycloalkanes.
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Affiliation(s)
- Jian Jian
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China.
| | - Kuiyi You
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China. and National & Local United Engineering Research Center for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, P. R. China
| | - Xuezhi Duan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Hongxu Gao
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China.
| | - Qing Luo
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China.
| | - Renjie Deng
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China.
| | - Pingle Liu
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China. and National & Local United Engineering Research Center for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, P. R. China
| | - Qiuhong Ai
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China. and National & Local United Engineering Research Center for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, P. R. China
| | - He'an Luo
- School of Chemical Engineering, Xiangtan University, Xiangtan 411105, P. R. China. and National & Local United Engineering Research Center for Chemical Process Simulation and Intensification, Xiangtan University, Xiangtan 411105, P. R. China
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Shao Z, Chen Y, Chen H, Zhang Y, Zhang F, Jian J, Fan Z, Liu L, Yang C, Zhou L, Yu S. Ultra-low temperature silicon nitride photonic integration platform. Opt Express 2016; 24:1865-1872. [PMID: 26906765 DOI: 10.1364/oe.24.001865] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
High-quality SiNx films with controllable low stress and low optical loss are deposited at ultra-low temperature (75 °C) using inductively coupled plasma chemical vapor deposition (ICP-CVD). Two kinds of integrated photonic structures have been demonstrated that exemplify its viability as a photonic integration platform. A microcavity consists of two distributed Bragg reflectors (DBR) formed by alternating a total of 49 layers of SiNx and SiO2 with a total thickness of about 11.5 μm is grown without any cracks, confirming the excellent stress control in the process. Microring resonators are also fabricated in as-deposited planar SiNx waveguide layer using electron-beam lithography (EBL) and plasma etching. Average waveguide loss of 0.79 ± 0.22 dB/cm has been achieved in the range of 1550-1600 nm for ring radii larger than 40 μm. The ultra-low temperature grown SiNx with properties of low loss and low stress is therefore a promising photonic integration platform for various photonic integration applications.
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Liu S, You K, Jian J, Luo Q, Liu P, Ai Q, Luo H. A simple and efficient approach for highly selective preparation of nitrocyclohexane from cyclohexane with tert-butyl nitrite catalyzed by N-hydroxyphthalimide. Res Chem Intermed 2015. [DOI: 10.1007/s11164-015-2144-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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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38
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You K, Zhou Z, Jian J, Deng R, Liu P, Ai Q, Luo H. A simple approach for preparation of dinitronaphthalene compounds from the nitration reaction of 1-nitronaphthalene with NO2 as nitration reagent. Res Chem Intermed 2015. [DOI: 10.1007/s11164-014-1893-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Abstract
In this work, NO2 as a nitration agent and the supported HPW/MCM-41 as a synergistic catalyst to replace traditional nitric acid and sulfuric acids were employed to catalyze benzene nitration to nitrobenzene.
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Affiliation(s)
- Kuiyi You
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
- National & Local United Engineering Research Center for Chemical Process Simulation and Intensification
| | - Renjie Deng
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Jian Jian
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Pingle Liu
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
- National & Local United Engineering Research Center for Chemical Process Simulation and Intensification
| | - Qiuhong Ai
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
- National & Local United Engineering Research Center for Chemical Process Simulation and Intensification
| | - He’an Luo
- School of Chemical Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
- National & Local United Engineering Research Center for Chemical Process Simulation and Intensification
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Agarwal S, Greiner A, Jian J. Editorial January 2014. e-Polymers 2014. [DOI: 10.1515/epoly-2014-0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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41
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Tsai Y, Cheng H, Yu B, Horng C, Chen C, Jian J, Chu N, Tsou M, Liu M, Huang A. Postmastectomy Radiation Therapy Improves Survival of N1 Breast Cancer Patients. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.028] [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: 11/29/2022]
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42
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You K, Jian J, Xiao H, Liu P, Ai Q, Luo H. Highly selective co-production of nitrocyclohexane and adipic acid from vapor phase catalytic nitration–oxidation of cyclohexane with NO2. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2012.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Cheng J, Peng L, Cheng Y, Wu J, Jian J. Unique role of proximal rectal dose in late rectal complication for patients with cervical cancer undergoing high-dose-rate intracavitary brachytherapy. Int J Radiat Oncol Biol Phys 2003. [DOI: 10.1016/s0360-3016(03)01230-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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44
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Jian J, Hao X, Deng C, Zhou H, Lin J. [The effects of Xuezhikang on serum lipid profile, thromboxane A2 and prostacyclin in patients with hyperlipidemia]. Zhonghua Nei Ke Za Zhi 1999; 38:517-9. [PMID: 11798687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
OBJECTIVE To study the effects of Xuezhikang on lipid profile, thromboxane (TX) A(2), prostacyclin (PGI(2)) in patients with hyperlipidemia. METHODS 91 patients with hyperlipidemia were randomly divided into a treatment group (n = 47, Xuezhikang 1.2 g/d Bid, p.o) and control group (n = 44, gemfibrozil 1.2 g/d Bid, p.o). serum lipids, TXB(2) and 6-Keto-PGF(1alpha) were determined before and 8 weeks after the treatment. RESULTS (1) After 8 weeks of treatment, the level of serum total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) decreased by 21.6% (P < 0.01) and 33.3% (P < 0. 01) in the Xuezikang group and by 20.4% (P < 0.01) and 24.8% (P < 0.01) in the gemfibrozil group respectively. Serum high density lipoprotein cholesterol (HDL-C) level elevated by 33.7% in the Xuezhikang group (P < 0.01) and 26.9% in the gemfibrozil group (P < 0.01). The effect of Xuezhikang was the same as gemfibrozil. There was no statistically significant difference between the effects of these two drugs. Triglyceride (TG) level decreased by 23.3% in the Xuezhikang group (P < 0.01) and 40.3% in the gemfibrozil group (P < 0.01). TG lowering effect of gemfibrozil was superior to that of Xuezhikang (P < 0.05). (2) The level of lipoprotein (a) [LP (a)] in the plasma decreased by 28.2% (P < 0.01) in the Xuezhikang group and by 4.9% (P > 0.05) in the gemfibrozil group. LP (a) lowering effect of Xuezhikang was superior to that of gemfibrozil (P < 0.01). (3)The Level of thromboxane (TX) B(2) in the plasma decreased by 34.2% in the Xuezhikang group (P < 0.01) and by 8.4% in the gemfibrozil group (P < 0.01). TXB(2) lowering effect of Xuezhikang was superior to that of gemfibrozil (P < 0.01). The level of 6-KetO-PGF(1alpha) in the plasma elevated by 65.4% in the Xuezhikang group (P < 0.01) and by 11.7% in the gemfibrozil group (P < 0.01); the effect of Xuezhikang was superior to that of gemfibrozil (P < 0.01). CONCLUSION Xuezhikang could markedly decrease the level of TC and LDL-C and elevate that of HDL-C in patients with hyperlipidemia and the effects of Xuezhikang were the same as those of gemfibrozil. TG lowering effect of gemfibrozil was superior to that of Xuezhikang, but Xuezhikang could markedly decrease the level of Lp (a) and regluate the balance between TXA(2) and PGI(2), its effect being superior to that of gemfibrozil.
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Affiliation(s)
- J Jian
- The First Affiliated Hospital, Hunan Collage of Traditional Chinese Medicine, Changsha 410007
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Lakshman DK, Jian J, Tavantzis SM. A double-stranded RNA element from a hypovirulent strain of Rhizoctonia solani occurs in DNA form and is genetically related to the pentafunctional AROM protein of the shikimate pathway. Proc Natl Acad Sci U S A 1998; 95:6425-9. [PMID: 9600982 PMCID: PMC27765 DOI: 10.1073/pnas.95.11.6425] [Citation(s) in RCA: 96] [Impact Index Per Article: 3.7] [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: 02/06/1998] [Accepted: 03/24/1998] [Indexed: 02/07/2023] Open
Abstract
M2 is a double-stranded RNA (dsRNA) element occurring in the hypovirulent isolate Rhs 1A1 of the plant pathogenic basidiomycete Rhizoctonia solani. Rhs 1A1 originated as a sector of the virulent field isolate Rhs 1AP, which contains no detectable amount of the M2 dsRNA. The complete sequence (3,570 bp) of the M2 dsRNA has been determined. A 6.9-kbp segment of total DNA from either Rhs 1A1 or Rhs 1AP hybridizes with an M2-specific cDNA probe. The sequences of M2 dsRNA and of PCR products generated from Rhs 1A1 total DNA were found to be identical. Thus this report describes a fungal host containing full-length DNA copies of a dsRNA element. A major portion of the M2 dsRNA is located in the cytoplasm, whereas a smaller amount is found in mitochondria. Based on either the universal or the mitochondrial genetic code of filamentous fungi, one strand of M2 encodes a putative protein of 754 amino acids. The resulting polypeptide has all four motifs of a dsRNA viral RNA-dependent RNA polymerase (RDRP) and is phylogenetically related to the RDRP of a mitochondrial dsRNA associated with hypovirulence in strain NB631 of Cryphonectria parasitica, incitant of chestnut blight. This polypeptide also has significant sequence similarity with two domains of a pentafunctional polypeptide, which catalyzes the five central steps of the shikimate pathway in yeast and filamentous fungi.
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Affiliation(s)
- D K Lakshman
- Department of Biological Sciences, University of Maine, Orono, ME 04469-5722, USA
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Jian J. [A preliminary report on a survey of medicinal plant resources in the Dabie Mountains in Henan Province]. Zhong Yao Tong Bao 1988; 13:11-3, 57. [PMID: 3255523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Abstract
Hepatitis B virus (HBV) DNA in leucocytes from 50 hepatitis patients with various patterns of HBV serological markers and serum HBV DNA and 13 normal controls were examined by Southern blot hybridization with 32P-labeled 3.2 Kb HBV DNA. A free form of HBV DNA was observed in leucocytes of 8 patients, 7 of whom were positive for serum HBeAg, and in 6 patients an integrated form of HBV DNA was identified. HBV DNA was not identified in leucocytes from 13 normal controls. The free form of HBV DNA in leucocytes existed as a heterogeneous smear from 2.0 to 3.2 Kb, similar to the pattern in liver and hepatocellular carcinoma cells but different from serum HBV DNA in which the 3.2 Kb band was absent. The banding pattern of the integrated form of HBV DNA in leucocytes varied among different patients. During preparation of white blood cells and purification of HBV DNA probes, it was important to remove plasma contamination and traces of pBR322, respectively. The presence of extrachromosomal DNA sequences partially homologous to pBR322 could cause false results. The presence of a free and integrated form of HBV DNA in leucocytes is important for explaining the biology of HBV, the harbouring and replication sites of extrahepatic origin, the mechanism of recurrent infection, and the rationale of the treatment of hepatitis B.
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