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Zhu X, Qiao S, Liao X. Irradiation Combined with PD-1 Inhibitor Aggravates Immune-Related Pneumonitis of the Non-Irradiated Lung in a Preclinical Model. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2102] [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: 11/28/2022]
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Zhu X, Wang Q, Li S, Qiao S, Zheng Z, Duan X. Changes in T Lymphocyte Subsets in Different Tumors Before and After Radiotherapy: A Meta-Analysis. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.826] [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: 11/16/2022]
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3
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Leuteritz T, Farheen H, Qiao S, Spreyer F, Schlickriede C, Zentgraf T, Myroshnychenko V, Förstner J, Linden S. Dielectric travelling wave antennas for directional light emission. Opt Express 2021; 29:14694-14704. [PMID: 33985186 DOI: 10.1364/oe.422984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
We present a combined experimental and numerical study of the far-field emission properties of optical travelling wave antennas made from low-loss dielectric materials. The antennas considered here are composed of two simple building blocks, a director and a reflector, deposited on a glass substrate. Colloidal quantum dots placed in the feed gap between the two elements serve as internal light source. The emission profile of the antenna is mainly formed by the director while the reflector suppresses backward emission. Systematic studies of the director dimensions as well as variation of antenna material show that the effective refractive index of the director primarily governs the far-field emission pattern. Below cut off, i.e., if the director's effective refractive index is smaller than the refractive index of the substrate, the main lobe results from leaky wave emission along the director. In contrast, if the director supports a guided mode, the emission predominately originates from the end facet of the director.
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Liang WQ, Xi HQ, Qiao S, Cui JX, Zhang KC, Gao YH, Song YN, Zhang L, Luo H, Wei B, Xue WG, Chen L. [Analysis of clinicopathologic characteristics of gastric cancer patients undergoing gastrectomy based on a single-center gastric cancer database with above 10 000 cases]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:1051-1058. [PMID: 33212553 DOI: 10.3760/cma.j.cn.441530-20200117-00031] [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: 11/05/2022]
Abstract
Objective: The storage of medical data has been digitized in China, but a unified and structured model has not yet been established. The standardized collection, analysis and sorting of tumor clinical data is the foundation of improving the standard of tumor diagnosis and treatment. Therefore, establishing a database platform of gastric cancer (GC) is an urgent need to integrate data resources and improve the level of diagnosis and treatment. The population economics indexes of GC patients in the last 20 years are analyzed in a single-center GC database. The medical records were structured by natural language processing technology. Authors aim to investigate the clinical pathological characteristics, staging and survival of the GC patients with gastrectomy. Method: A retrospective cohort study was carried out. Clinicopatological data of patients receiving surgical treatment from 2000 to 2019 were retrospectively collected. According to the gastric cancer TNM staging guidelines from the Union for International Cancer Control and the American Joint Committee on Cancer (UICC/AJCC) 8th edition, the structured gastric cancer clinicopathological data were re-evaluated and interpreted. The Kaplan-Meier method and the log-rank test were used to compare survival rate among different groups of patients with complete follow-up data of 2010-2016. Results: Clinicopathological data of 13 492 GC patients were enrolled. The ratio of men to women in the whole group was 3.25:1.00, including 10 320 men with average onset age of 59.68 years, which was basically stable in recent 20 years, and 3172 women with average onset age of 55.93 years, which presented a trend of average increasement of 0.17 year per year. The average hospitalization duration for GC patients showed a decreasing trend year by year, which was 13.87 days in 2019. Average hospitalization cost for GC patients was increasing year by year, with a peak of 83 600 CNY in 2017 and 75 400 CNY in 2019. By natural language identification and exclusion criteria screening, a total of 7218 GC patients obtained structured clinicopathological information. Analysis on clinicopathological characteristics of 3626 GC patients in the last 5 years showed that the average diameter of tumor was (4.44±2.61) cm; the average number of harvested lymph node was 24.30±13.29; the proportion of surgical methods were as following: open surgery in 1398 cases (38.55%), laparoscopic surgery in 1856 cases (51.19%) and robotic surgery in 372 cases (10.26%). The postoperative pathological stage was as following: IA in 658 cases (18.15%), IB in 318 cases (8.77%), IIA in 559 cases (15.42%), IIB in 543 (14.98%), III A in 632 (17.43%), III B in 612 cases (16.88%), III C in 276 cases (7.61%), and IV in 28 cases (0.77%). Complete follow-up data of 3431 patients from 2010 to 2016 were presented. The 1-, 3- and 5-year survival rates were 82%, 69% and 60%, respectively for the whole group. The 1-, 3- and 5-year survival rates for patients undergoing laparoscopic surgery were 83%, 70% and 64%, respectively, and for those undergoing open surgery were 81%, 67% and 56%, respectively, and the difference between the two groups was not statistically significant (P=0.109). The 5-year survival rate of GC patients with different AJCC stages was as following: 88% in IA, 77% in IB, 70% in II A, 62% in II B, 44% in III A, 32% in III B, 22% in III C, and 17% in IV. Conclusion: This study provides basic data for the establishment of comprehensive diagnosis and treatment model of multicenter, shedding light on the improvement of comprehensive treatment of GC in China.
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Affiliation(s)
- W Q Liang
- Department of Gastric Surgery, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - H Q Xi
- Department of Abdominal Trauma, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - S Qiao
- Medical Big Data Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J X Cui
- Department of Abdominal Trauma, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - K C Zhang
- Department of Gastric Surgery, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - Y H Gao
- Department of Gastric Surgery, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - Y N Song
- Medical Big Data Center of Chinese PLA General Hospital, Beijing 100853, China
| | - L Zhang
- Institute of General Surgery, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - H Luo
- Medical Big Data Center of Chinese PLA General Hospital, Beijing 100853, China
| | - B Wei
- Department of Abdominal Trauma, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - W G Xue
- Medical Big Data Center of Chinese PLA General Hospital, Beijing 100853, China
| | - L Chen
- Department of General Surgery of Chinese PLA General Hospital, Beijing 100853, China
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Wu Z, Bennett D, Brosnan J, Calle R, Collins S, Esquejo R, Joaquim S, Joyce A, Kim H, LaCarubba B, Lin L, Kim-Muller J, Peloquin M, Pettersen B, Qiao S, Rossulek M, Weber G, Zhang B, Birnbaum M, Breen D. 2O Growth differentiation factor 15 (GDF-15) neutralization reverses cancer cachexia, restores physical performance and mitigates emesis associated with platinum-based chemotherapy. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.155] [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: 10/23/2022] Open
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Sun ZP, Liu ZH, Liu ZT, Liu WL, Zhang FY, Shen DW, Ye M, Qiao S. Performance of the BL03U beamline at SSRF. J Synchrotron Radiat 2020; 27:1388-1394. [PMID: 32876617 DOI: 10.1107/s1600577520008310] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/22/2020] [Indexed: 06/11/2023]
Abstract
The vacuum ultraviolet beamline BL03U with a photon energy range from 7 eV upwards has been constructed at the 3.5 GeV Shanghai Synchrotron Radiation Facility. Equipped with an APPLE-Knot undulator, this beamline is dedicated to angle-resolved photoemission spectroscopy. An energy-resolving power of higher than 4.6 × 104 has been achieved in the photon energy range 21.6-48 eV, which is almost the same as the theoretical estimation.
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Affiliation(s)
- Z P Sun
- Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - Z H Liu
- Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - Z T Liu
- Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - W L Liu
- Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - F Y Zhang
- Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - D W Shen
- Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - M Ye
- Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
| | - S Qiao
- Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
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Zhong S, Chen Q, Hu J, Liu S, Qiao S, Ni J, Sun W. Vertical distribution of microbial communities and their response to metal(loid)s along the vadose zone-aquifer sediments. J Appl Microbiol 2020; 129:1657-1673. [PMID: 32533753 DOI: 10.1111/jam.14742] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 03/12/2020] [Revised: 05/20/2020] [Accepted: 06/03/2020] [Indexed: 01/30/2023]
Abstract
AIMS This study attempted to demonstrate the vertical shift in bacterial, archaeal and fungal communities along the vadose zone-aquifer sediments and their respective responses to environmental factors. METHODS AND RESULTS We collected samples from the vadose zone and three aquifer sediments along a 42·5 m bore of a typical agricultural land. The results showed that the bacterial community shifted greatly with depth. The classes of Actinobacteria (19·5%) and NC10 (11·0%) were abundant in the vadose zone while Alphaproteobacteria (22·3%) and Gammaproteobacteria (20·1%) were enriched in the aquifer. Archaeal and fungal communities were relatively more homogeneous with no significant trend as a function of depth. Process analyses further indicated that selection dominated in the bacterial community, whereas stochastic processes governed archaeal and fungal communities. Moreover environment-bacteria interaction analysis showed that metal(loid)s, especially alkali metal, had a closer correlation with the bacterial community than physicochemical variables. CONCLUSIONS Depth strongly affected bacterial rather than archaeal and fungal communities. Metal(loid)s prevailed over physicochemical variables in shaping the bacterial community in the vadose zone-aquifer continuum. SIGNIFICANCE AND IMPACT OF THE STUDY Our study provides a new perspective on the structure of microbial communities from the vadose zone to the deep aquifers.
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Affiliation(s)
- S Zhong
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing, China
| | - Q Chen
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing, China
| | - J Hu
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing, China
| | - S Liu
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing, China
| | - S Qiao
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing, China
| | - J Ni
- College of Environmental Sciences and Engineering, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Peking University, Beijing, China
| | - W Sun
- State Key Lab Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai, People's Republic of China
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Yang X, Li X, Qiao S. Patterns of comorbidity and sociodemographic and psychosocial correlates among people living with HIV in South Carolina, USA. HIV Med 2020; 21:205-216. [DOI: 10.1111/hiv.12812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 09/05/2019] [Accepted: 09/17/2019] [Indexed: 12/25/2022]
Affiliation(s)
- X Yang
- Department of Health Promotion, Education, and Behavior South Carolina SmartState Center for Healthcare Quality (CHQ) University of South Carolina Arnold School of Public Health Columbia SC USA
| | - X Li
- Department of Health Promotion, Education, and Behavior South Carolina SmartState Center for Healthcare Quality (CHQ) University of South Carolina Arnold School of Public Health Columbia SC USA
| | - S Qiao
- Department of Health Promotion, Education, and Behavior South Carolina SmartState Center for Healthcare Quality (CHQ) University of South Carolina Arnold School of Public Health Columbia SC USA
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Zeng M, Xu J, Luo Q, Hou C, Qiao S, Fu S, Fan X, Liu J. Constructing antibacterial polymer nanocapsules based on pyridine quaternary ammonium salt. Mater Sci Eng C Mater Biol Appl 2019; 108:110383. [PMID: 31923992 DOI: 10.1016/j.msec.2019.110383] [Citation(s) in RCA: 20] [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] [Received: 03/11/2019] [Revised: 07/22/2019] [Accepted: 10/29/2019] [Indexed: 12/19/2022]
Abstract
Excessive use of antibiotics accelerates the development and spread of drug-resistant strains, which is a huge challenge for the field of medical health worldwide. Quaternary ammonium salt polymers are considered to be membrane-active bactericidal groups with vast potential to control bacterial infections and inhibit drug resistance. Herein, we report on the creative synthesis and characterization of novel antimicrobial polymer nanocapsules based on pyridine quaternary ammonium salt. The antimicrobial polymer nanocapsules were formed by reaction of C3 symmetrical rigid monomer 2,4,6‑tris(4‑pyridyl)‑1,3,5‑triazine (TPT) and a flexible linker 1,2‑dibromoethane. The polymer nanocapsule was constructed as a cationic hollow sphere composed of a two-dimensional sheet whose main chain was formed by the pyridine quaternary ammonium salt, and a part of the bromide ion was adsorbed on the sphere. This hollow nanocapsule was characterized in detail by DLS, SEM, TEM, AFM, EDS and EA. When the cationic polymer nanocapsules are close to the Gram-negative Escherichia coli, the negatively charged phospholipid molecules in the bacterial membrane are attracted to the cationic surface and lead to rupture of cells. SEM confirmed the breakage of Escherichia coli membranes. The minimum inhibitory concentration was found to be 0.04 mg/mL, and the minimum bactericidal concentration was 0.1 mg/mL. Our experiments demonstrated that the adsorption of negatively charged phospholipid molecules on the surface of the pyridine quaternary ammonium salt polymer can kill Gram-negative bacteria without inserting quaternary ammonium salt hydrophobic groups into the cell membrane.
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Affiliation(s)
- Minghao Zeng
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Jiayun Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Chunxi Hou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Shuang Fu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Xiaotong Fan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China.
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Qiao S, Elbes D, Boubriak O, Urban JPG, Coussios CC, Cleveland RO. Delivering Focused Ultrasound to Intervertebral Discs Using Time-Reversal. Ultrasound Med Biol 2019; 45:2405-2416. [PMID: 31155405 DOI: 10.1016/j.ultrasmedbio.2019.04.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 07/16/2018] [Revised: 04/18/2019] [Accepted: 04/25/2019] [Indexed: 06/09/2023]
Abstract
Chronic low back pain causes more disability worldwide than any other condition and is thought to arise in part through loss of biomechanical function of degenerate intervertebral discs (IVDs). Current treatments can involve replacing part or all of the degenerate IVDs by invasive surgery. Our vision is to develop a minimally invasive approach in which high intensity focused ultrasound (HIFU) is used to mechanically fractionate degenerate tissue in an IVD; a fine needle is then used to first remove the fractionated tissue and then inject a biomaterial able to restore normal physiologic function. The goal of this manuscript is to demonstrate the feasibility of trans-spinal HIFU delivery using simulations of 3-D ultrasound propagation in models derived from patient computed tomography (CT) scans. The CT data were segmented into bone, fat and other soft tissue for three patients. Ultrasound arrays were placed around the waist of each patient model, and time-reversal was used to determine the source signals necessary to create a focus in the center of the disc. The simulations showed that for 0.5 MHz ultrasound, a focus could be created in most of the lumbar IVDs, with the pressure focal gain ranging from 3.2-13.7. In conclusion, it is shown that with patient-specific planning, focusing ultrasound into an IVD is possible in the majority of patients despite the complex acoustic path introduced by the bony structures of the spine.
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Affiliation(s)
- S Qiao
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK
| | - D Elbes
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK
| | - O Boubriak
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK
| | - J P G Urban
- Department of Physiology, Anatomy & Genetics, University of Oxford, UK
| | - C-C Coussios
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK
| | - R O Cleveland
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK.
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Li R, Tian X, Yu Y, Qiao S, Wang Z, Ma J. Development of a rapid immunochromatographic assay for detection of antibodies against porcine epidemic diarrhea virus. Pol J Vet Sci 2019; 21:139-147. [PMID: 29624018 DOI: 10.24425/119032] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
An immunochromatographic test strip was developed for the detection of antibodies against porcine epidemic diarrhea virus (PEDV) in porcine serum. In this test, the recombinant nucleocapsid protein of PEDV was expressed in soluble form and purified by using Ni-NTA resin and gel filtration chromatography. The purified recombinant N protein conjugated with colloidal gold was dispensed on a conjugate pad as the detector. Staphylococcal protein A and rabbit anti-N protein IgG were blotted on a nitrocellulose membrane for the test and control lines, respectively. The immunochromatographic test strip specifically detected PEDV antibodies within 10 min and had higher sensitivity (96.0%) and specificity (90.8%) than those of commercial enzyme-linked immunosorbent assay (ELISA) kits. Our newly developed strip has great potential for the early diagnosis of PEDV infection.
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Affiliation(s)
- R Li
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China.,Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - X Tian
- Medical Research Center, Xinxiang Medical College, Xinxiang 453003, China
| | - Y Yu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - S Qiao
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Z Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - J Ma
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
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Li X, Qiao S, Zhao L, Liu S, Li F, Yang F, Luo Q, Hou C, Xu J, Liu J. Template-Free Construction of Highly Ordered Monolayered Fluorescent Protein Nanosheets: A Bioinspired Artificial Light-Harvesting System. ACS Nano 2019; 13:1861-1869. [PMID: 30747517 DOI: 10.1021/acsnano.8b08021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Using biological materials for light-harvesting applications has attracted considerable attention in recent years. Such materials provide excellent environmental compatibility and often exhibit superior properties over synthetic materials. Herein, inspired by the outstanding energy transfer performance in coelenterates, we constructed a template-free, highly ordered two-dimensional light-harvesting system by covalent-induced coassembly of EBFP2 (donor) and EGFP (acceptor), in which the fluorescent chromophores were well distributed and adopted a fixed orientation. By introducing approximate square planar binding sites on the side surface of protein, assembly pattern was pin down and self-assembly extended in orthogonal directions to achieve monolayered and tessellated protein nanoarrays. The excellent antiself-quenching property of fluorescent proteins endowed the coassembled system with attractive light-harvesting capability. Even at high local concentrations, a low resonance energy transfer self-quenching was observed and, therefore, energy can be efficiently transferred. More importantly, the distance between adjacent chromophores is continuously adjustable. By making minor changes to the length of the inducing linker, we have achieved significant control over the size of the assembly. A micron-sized light-harvesting system with satisfactory energy transfer efficiency was finally obtained. This work developed a template-free light-harvesting system completely based on fluorescent proteins (FPs), which overcame the restriction of using templates. Not limited to this work, the special core-shell structure of FPs may be expected to direct the optimization of fluorescent dyes by cladding.
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Affiliation(s)
- Xiumei Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Linlu Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Shengda Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Fei Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Feihu Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Chunxi Hou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Jiayun Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , 2699 Qianjin Street , Changchun 130012 , China
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Zhang T, Zou Y, Sun JN, Qiao S. Logistic-function-based nonlinear companding transform for asymmetrical hybrid optical orthogonal frequency division multiplexing visible light communications systems. Appl Opt 2018; 57:9480-9487. [PMID: 30461996 DOI: 10.1364/ao.57.009480] [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] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 10/08/2018] [Indexed: 06/09/2023]
Abstract
In this paper, a logistic-function-based nonlinear companding transform (LNCT) is proposed to reduce the peak-to-average power ratio of asymmetrical hybrid optical orthogonal frequency division multiplexing (AHO-OFDM) signals in visible light communications (VLC). First, the positive and negative amplitudes of the bipolar AHO-OFDM signal are divided into two groups as the positive and nonnegative groups. Then, a peak detection is employed frame-by-frame to locate the group where the maximum peak occurs. Finally, the piecewise companding transform consisting of the nonlinear logistic function and a linear function is performed on the amplitude groups with and without the maximum peak, respectively. The simulation results show that the proposed LNCT scheme outperforms the classical linear nonsymmetrical transform method in terms of the complementary cumulative distribution function with a competing bit error rate performance, thus demonstrating its application potential in AHO-OFDM-based VLC systems.
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Feng JY, Li M, Zhao S, Zhang C, Yang ST, Qiao S, Tan WF, Qu HJ, Wang DY, Pu ZG. Analysis of evolution and genetic diversity of sweetpotato and its related different polyploidy wild species I. trifida using RAD-seq. BMC Plant Biol 2018; 18:181. [PMID: 30185158 PMCID: PMC6126004 DOI: 10.1186/s12870-018-1399-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 08/28/2018] [Indexed: 05/04/2023]
Abstract
BACKGROUND Sweetpotato (Ipomoea batatas (L.) Lam.) is one of the most important crops from the family of Convolvulaceae. It is widely reported that cultivated sweetpotato was originated from Ipomoea trifida. However, diploid, tetraploid and hexaploid I. trifida were found in nature. The relationship, between them, and among them and sweetpotato, is remaining unclear. RESULTS In the present study, we detected the genome diversity and relationship of sweetpotato and different polyploidy types I. trifida using Restriction-site Associated DNA Sequencing (RAD-seq). A total of 38,605 RAD-tags containing 832,204 SNPs had been identified. These tags were annotated using five public databases, about 11,519 tags were aligned to functional genes in various pathways. Based on SNP genotype, phylogenetic relation analysis results confirmed that cultivated sweetpotato has a closer relationship with I. trifida 6× than with I. trifida 4X and I. trifida 2×. Besides, 5042 SSRs were detected in I. trifida 6×, and 3202 pairs of high-quality SSR primers were developed. A total of 68 primers were randomly selected and synthesized, of which 61 were successfully amplified. CONCLUSION These results provided new evidence that cultivated sweetpotato originated from I. trifida 6×, and that I. trifida 6× evolved from I. trifida 4X and I. trifida 2×. Therefore, using I. trifida 6× as the model plant of sweetpotato research should be more practical than using I. trifida 2× in the future. Meanwhile, sequence information and markers from the present study will be helpful for sweetpotato and I. trifida studies in the future.
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Affiliation(s)
- J Y Feng
- Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, China.
| | - M Li
- Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, China
| | - S Zhao
- Center of Analysis and Testing, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, China
| | - C Zhang
- Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, China
| | - S T Yang
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
| | - S Qiao
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
| | - W F Tan
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
| | - H J Qu
- Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, China
| | - D Y Wang
- Crop Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610066, China
| | - Z G Pu
- Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, China.
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15
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Jia S, Yao Y, Tang X, Song Y, Xu J, Jiang P, Wang H, Zhao X, Gao Z, Qiao S, Yang J, Gao R, Xu B, Yuan J, Yang Y. P818Impact of baseline estimated glomerular filtration rate on in-hospital outcomes of ST elevation myocardial infarction patients undergoing percutaneous coronary intervention: from CAMI registry. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p818] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Jia
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - Y Yao
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - X Tang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - Y Song
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - J Xu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - P Jiang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - H Wang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - X Zhao
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - Z Gao
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - S Qiao
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - J Yang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - R Gao
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - B Xu
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - J Yuan
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
| | - Y Yang
- Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Cardiology, Beijing, China People's Republic of
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16
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Fu S, Zhang Y, Guan S, Huang Q, Wang R, Tian R, Zang M, Qiao S, Zhang X, Liu S, Fan X, Li X, Luo Q, Hou C, Xu J, Dong Z, Liu J. Reductive-Responsive, Single-Molecular-Layer Polymer Nanocapsules Prepared by Lateral-Functionalized Pillar[5]arenes for Targeting Anticancer Drug Delivery. ACS Appl Mater Interfaces 2018; 10:14281-14286. [PMID: 29664280 DOI: 10.1021/acsami.8b03534] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Herein, a new reductive-responsive pillar[5]arene-based, single-molecule-layer polymer nanocapsule is constructed for drug delivery. The functionalized system shows good biocompatibility, efficient internalization into targeted cells and obvious triggered release of entrapped drugs in a reducing environment such as cytoplasm. Besides, this smart vehicle loaded with anticancer drug shows excellent inhibition for tumor cell proliferation and exhibits low side effect on normal cells. This work not only demonstrates the development of a new reductive-responsive single molecular layer polymer nanocapsule for anticancer drug targeting delivery but also extends the design of smart materials for biomedical applications.
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Affiliation(s)
| | | | | | - Qiaoxian Huang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences , University of Macau , Taipa , Macau SAR 999078 , China
| | - Ruibing Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences , University of Macau , Taipa , Macau SAR 999078 , China
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17
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Wang R, Qiao S, Zhao L, Hou C, Li X, Liu Y, Luo Q, Xu J, Li H, Liu J. Dynamic protein self-assembly driven by host-guest chemistry and the folding-unfolding feature of a mutually exclusive protein. Chem Commun (Camb) 2018; 53:10532-10535. [PMID: 28890970 DOI: 10.1039/c7cc05745h] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel exploration utilizing a well-designed fusion protein containing a redox stimuli-responsive domain was developed to construct dynamic protein self-assemblies induced by cucurbit[8]uril-based supramolecular interactions. The reversible interconversion of the morphology of the assemblies between nanowires and nanorings was regulated precisely by redox conditions.
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Affiliation(s)
- Ruidi Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People's Republic of China.
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18
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Li H, Yan X, Qiao S, Lu G, Su X. Yellow-Emissive Carbon Dot-Based Optical Sensing Platforms: Cell Imaging and Analytical Applications for Biocatalytic Reactions. ACS Appl Mater Interfaces 2018; 10:7737-7744. [PMID: 29441784 DOI: 10.1021/acsami.7b17619] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Carbon dots (CDs) have attracted increasing interest in bioimaging and sensing recently. Herein, we present a simple synthetic strategy to prepare yellow-emissive CDs (λem = 535 nm) by one-pot hydrothermal treatment of p-phenylenediamine and aspartic acid. The as-prepared CDs possess outstanding optical features, excellent biocompatibility, and low cytotoxicity, especially for fluorescence (FL) cellular imaging. Interestingly, by combining the quenching and recognition ability of silver nanoparticles (AgNPs) with the optical capacity of CDs, a label-free strategy for specifically monitoring H2O2-generated biocatalytic processes was proposed, such as glucose oxidase-induced conversion of glucose, cholesterol oxidase-catalyzed oxidization of cholesterol, and bienzyme of acetylcholinesterase and choline oxidase-mediated reaction of acetylcholine. In this process, AgNPs act as a "nanoquencher" to decrease the FL intensity of CDs via surface plasmon-enhanced energy-transfer mechanism. The enzymatic oxidation product (H2O2) subsequently etches the AgNPs to silver ions, thus recovering the FL of CDs, which enabled this proposed nanosensor to sensitively detect H2O2-generated biocatalytic processes. The above results pave the way to implement CDs as FL labels for biosensors and biological imaging.
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Affiliation(s)
| | | | - Shanpeng Qiao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P. R. China
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19
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Wang T, Li J, Xu J, Fan X, Zhao L, Qiao S, Pan T, Liu J. Rational redesign of the active site of selenosubtilisin with strongly enhanced glutathione peroxidase activity. J Catal 2018. [DOI: 10.1016/j.jcat.2017.12.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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20
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Hu C, Ma N, Li F, Fang Y, Liu Y, Zhao L, Qiao S, Li X, Jiang X, Li T, Shen F, Huang Y, Luo Q, Liu J. Cucurbit[8]uril-Based Giant Supramolecular Vesicles: Highly Stable, Versatile Carriers for Photoresponsive and Targeted Drug Delivery. ACS Appl Mater Interfaces 2018; 10:4603-4613. [PMID: 29333854 DOI: 10.1021/acsami.8b00297] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Highly stable giant supramolecular vesicles were constructed by hierarchical self-assembly of cucurbit[8]uril (CB[8])-based supra-amphiphiles for photoresponsive and targeted intracellular drug delivery. These smart vesicles can encapsulate the model drugs with high loading efficiencies and then release them by manipulating photoswitchable CB[8] heteroternary complexation to regulate the formation and dissociation of supra-amphiphiles that cause dramatic morphological changes of the assemblies to achieve remote optically controlled drug delivery. More importantly, the confocal microscopy analysis, cellular uptake experiment, and cell viability assay have shown that the giant vesicles are able to maintain the structural integrity and stability within actual cellular environments and exhibit obvious advantages for intracellular drug delivery such as low toxicity, easy surface modification for tumor-targeting selectivity, and rapid internalization into different human cancer cell lines. A synergistic mechanism that integrates multiple pathways including energy-dependent endocytosis, macropinocytosis, cholesterol-dependent endocytosis, and microtubule-related endocytosis was determined to facilitate the internalization process. Moreover, cytotoxicity experiments and flow cytometric analysis have demonstrated that the doxorubicin hydrochloride-loaded vesicles exhibited a significant therapeutic effect for tumor cells upon UV light irradiation, which makes the photoresponsive system more promising for potential applications in pharmaceutically relevant fields.
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Affiliation(s)
- Cuihua Hu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Ningning Ma
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Fei Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Yu Fang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Yao Liu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Linlu Zhao
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Xiumei Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Xiaojia Jiang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Tiezhu Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Fangzhong Shen
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Yibing Huang
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, and ‡Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, College of Life Sciences, Jilin University , 2699 Qianjin Road, Changchun 130012, China
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21
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Fan X, Tian R, Liu S, Qiao S, Luo Q, Yan T, Fu S, Zhang X, Xu J, Liu J. Covalently assembled polymer nanocapsules: a novel scaffold for light-harvesting. Polym Chem 2018. [DOI: 10.1039/c7py02068f] [Citation(s) in RCA: 11] [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: 01/18/2023]
Abstract
A light-harvesting system was firstly established on the basis of a covalently assembled nanocapsule.
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22
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Zhao L, Li Y, Wang T, Qiao S, Li X, Wang R, Luo Q, Hou C, Xu J, Liu J. Photocontrolled protein assembly for constructing programmed two-dimensional nanomaterials. J Mater Chem B 2018; 6:75-83. [DOI: 10.1039/c7tb02826a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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
A rapid and efficient strategy was developed to construct photocontrolled 2D protein nanosheets with an orderly arrangement.
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23
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Affiliation(s)
- Chunxi Hou
- State Key laboratory of Supramolecular Structure and Materials; College of Chemistry, and
| | - Xiangzhi Zeng
- College of Life Science; Jilin University; 2699 Qianjin Road Changchun 130012 China
| | - Yuzhou Gao
- Suzhou Institute of Biomedical Engineering and Technology; Chinese Academy of Sciences; No.88, Keling Road Suzhou New District, Suzhou 215163 China
| | - Shanpeng Qiao
- State Key laboratory of Supramolecular Structure and Materials; College of Chemistry, and
| | - Xin Zhang
- State Key laboratory of Supramolecular Structure and Materials; College of Chemistry, and
| | - Jiayun Xu
- State Key laboratory of Supramolecular Structure and Materials; College of Chemistry, and
| | - Junqiu Liu
- State Key laboratory of Supramolecular Structure and Materials; College of Chemistry, and
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24
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Liu Y, Pan T, Fang Y, Ma N, Qiao S, Zhao L, Wang R, Wang T, Li X, Jiang X, Shen F, Luo Q, Liu J. Construction of Smart Glutathione S-Transferase via Remote Optically Controlled Supramolecular Switches. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02821] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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)
- Yao Liu
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Tiezheng Pan
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
- School
of Life Sciences, Northwestern Polytechnical University, 127 Youyi
West Road, Xi’an, 710072, China
| | - Yu Fang
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Ningning Ma
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Shanpeng Qiao
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Linlu Zhao
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Ruidi Wang
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Tingting Wang
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Xiumei Li
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Xiaojia Jiang
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Fangzhong Shen
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Quan Luo
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
| | - Junqiu Liu
- State
Key Laboratory of Supramolecular Structure and Materials, Institute
of Theoretical Chemistry, Jilin University, 2699 Qianjin Road, Changchun, 130012, China
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25
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Yao DJ, Qiao S, Zhang Y, Zhao YT, Yuan CH. Correlation between expression of LRP16, Ki67 and EGFR and breast cancer clinical pathologic factors and prognosis. Eur Rev Med Pharmacol Sci 2017; 21:47-51. [PMID: 28745792] [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: 06/07/2023]
Abstract
OBJECTIVE To investigate the expression of leukemia-related protein 16 (LRP16), proliferating cell nuclear antigen K-67 (Ki67) and epidermal growth factor receptor-1 (EGFR-1) in breast cancer tissue and to explore the correlation between the expression of those proteins and breast cancer clinical pathologic factors and prognosis. PATIENTS AND METHODS The expressions of LRP16, Ki67 and EGFR in breast cancer tissues of 86 cases were detected by the immunohistochemical method and the correlations between the expression of LRP16, Ki67 and EGFR and clinical pathologic factors and prognosis were investigated. RESULTS Positive expression rates of LRP16, Ki67 and EGFR in breast cancer tissue were 52.3%, 70.9% and 16.3%, respectively. There was no statistical difference in the expression of RP16, Ki67 and EGFR between different age groups (p>0.05). The expression of LRP16 was correlated with clinical stage, histological grade, tumor size and lymphatic metastasis (p<0.05); the expression of Ki67 was correlated with clinical stage, histological grade, tumor size and lymphatic metastasis (p<0.05); the expression of EGFR was correlated with histological grade (p<0.05). Comparison of postoperative local recurrence and metastasis time between LRP 16 positive group and negative group showed statistically significant difference (p<0.05); comparison of postoperative local recurrence and metastasis time between Ki67 positive group and negative group also showed statistically significant difference (p<0.05); comparison of postoperative local recurrence and metastasis time between EGFR positive group and negative group showed no statistically significant difference (p<0.05). CONCLUSIONS Detection of expression levels of LPR16, Ki67 and EGFR in breast cancer tissue improves the understanding of biological behaviors of breast cancer, which in turn provide clinical guidance in diagnosis, treatment and prognosis assessment.
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Affiliation(s)
- D-J Yao
- The Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang Province, China.
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26
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Ma CL, Qiao S, Li YC, Wang XF, Sun RJ, Zhang X, Qian RK, Song SD. TGF-β1 promotes human hepatic carcinoma HepG2 cells invasion by upregulating autophagy. Eur Rev Med Pharmacol Sci 2017; 21:2604-2610. [PMID: 28678325] [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: 06/07/2023]
Abstract
OBJECTIVE To study the role of TGF-β1 in autophagy and invasion ability of human hepatic carcinoma HepG2 cells. MATERIALS AND METHODS Cultured HepG2 cells were treated with different concentrations of TGF-β1 for 24 h. The protein expression levels of autophagy relative marker LC3 and Beclin1 were detected by Western blot. The effect of TGF-β1 on invasion ability of HepG2 cells was detected with transwell method. RESULTS The results demonstrated that TGF-β1 was able to activate autophagy of HepG2 cells in a dose-dependent manner. Autophagy inhibitor 3-methyladenine (3-MA) could reverse TGF-β1 induced autophagy process. Also, TGF-β1 significantly promotes the invasion ability of HepG2 cells; however, this process could effectively reverse by autophagy inhibitor 3-MA. CONCLUSIONS TGF-β1 enhances HepG2 cells invasion by upregulating autophagy.
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Affiliation(s)
- C-L Ma
- Department of Hepatobiliary Surgery, No. 1 People's Hospital in Jining, Shandong Jining, China.
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27
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Zhang X, Xu J, Lang C, Qiao S, An G, Fan X, Zhao L, Hou C, Liu J. Enzyme-Regulated Fast Self-Healing of a Pillararene-Based Hydrogel. Biomacromolecules 2017; 18:1885-1892. [DOI: 10.1021/acs.biomac.7b00321] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xin Zhang
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Jiayun Xu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Chao Lang
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Guo An
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Xiaotong Fan
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Linlu Zhao
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Chunxi Hou
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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28
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Affiliation(s)
- Tiezheng Pan
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Yao Liu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Chengye Si
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Yushi Bai
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Linlu Zhao
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Jiayun Xu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Zeyuan Dong
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Quan Luo
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular
Structure and Materials, College of Chemistry, Jilin University, 2699
Qianjin Road, Changchun 130012, China
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Zhao L, Zou H, Zhang H, Sun H, Wang T, Pan T, Li X, Bai Y, Qiao S, Luo Q, Xu J, Hou C, Liu J. Enzyme-Triggered Defined Protein Nanoarrays: Efficient Light-Harvesting Systems to Mimic Chloroplasts. ACS Nano 2017; 11:938-945. [PMID: 28051843 DOI: 10.1021/acsnano.6b07527] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The elegance and efficiency by which chloroplasts harvest solar energy and conduct energy transfer have been a source of inspiration for chemists to mimic such process. However, precise manipulation to obtain orderly arranged antenna chromophores in constructing artificial chloroplast mimics was a great challenge, especially from the structural similarity and bioaffinity standpoints. Here we reported a design strategy that combined covalent and noncovalent interactions to prepare a protein-based light-harvesting system to mimic chloroplasts. Cricoid stable protein one (SP1) was utilized as a building block model. Under enzyme-triggered covalent protein assembly, mutant SP1 with tyrosine (Tyr) residues at the designated sites can couple together to form nanostructures. Through controlling the Tyr sites on the protein surface, we can manipulate the assembly orientation to respectively generate 1D nanotubes and 2D nanosheets. The excellent stability endowed the self-assembled protein architectures with promising applications. We further integrated quantum dots (QDs) possessing optical and electronic properties with the 2D nanosheets to fabricate chloroplast mimics. By attaching different sized QDs as donor and acceptor chromophores to the negatively charged surface of SP1-based protein nanosheets via electrostatic interactions, we successfully developed an artificial light-harvesting system. The assembled protein nanosheets structurally resembled the natural thylakoids, and the QDs can achieve pronounced FRET phenomenon just like the chlorophylls. Therefore, the coassembled system was meaningful to explore the photosynthetic process in vitro, as it was designed to mimic the natural chloroplast.
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Affiliation(s)
- Linlu Zhao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Haoyang Zou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Hao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Hongcheng Sun
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Tingting Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Tiezheng Pan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Xiumei Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Yushi Bai
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Jiayun Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Chunxi Hou
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , 2699 Qianjin Street, Changchun 130012, China
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31
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Wang MC, Qiao S, Jiang Z, Luo SN, Qi J. Wang et al. Reply. Phys Rev Lett 2016; 117:169702. [PMID: 27792357 DOI: 10.1103/physrevlett.117.169702] [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] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Indexed: 06/06/2023]
Affiliation(s)
- M C Wang
- The Peac Institute of Multiscale Sciences, Sichuan 610031, China
- Key Laboratory of Advanced Technologies of Materials, Southwest Jiaotong University, Sichuan 610031, China
| | - S Qiao
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, China
| | - Z Jiang
- School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - S N Luo
- The Peac Institute of Multiscale Sciences, Sichuan 610031, China
- Key Laboratory of Advanced Technologies of Materials, Southwest Jiaotong University, Sichuan 610031, China
| | - J Qi
- The Peac Institute of Multiscale Sciences, Sichuan 610031, China
- Key Laboratory of Advanced Technologies of Materials, Southwest Jiaotong University, Sichuan 610031, China
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Abstract
Porcine reproductive and respiratory syndrome virus (PRRSV) is an important swine pathogen, causing huge economic losses each year worldwide. Immunization with vaccines containing the glycoprotein 5 (GP5) of PRRSV is the main measure to induce neutralizing antibodies and control the disease. Here, we developed a GP5 protein-based ELISA for detecting antibodies against PRRSV. The overall yield of purified GP5 in E. coli flask culture was more than 45 mg/L cell culture. Western blot and IFA indicated that the GP5 protein was highly immunogenic. After optimization and validation with IDEXX PRRS using 566 clinical sera, the DSN, DSP, and accuracy of GP5-ELISA were 81.39%, 75.96%, and 80.39%, respectively. Besides, GP5-ELISA is highly specific, showing no cross-reactions with sera against other important swine pathogens. Hence, GP5 is a good diagnostic antigen and the GP5 protein-based ELISA has the potential to be used in the field.
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Lang C, Zhang X, Dong Z, Luo Q, Qiao S, Huang Z, Fan X, Xu J, Liu J. Selenium-containing organic nanoparticles as silent precursors for ultra-sensitive thiol-responsive transmembrane anion transport. Nanoscale 2016; 8:2960-2966. [PMID: 26783054 DOI: 10.1039/c5nr07808c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An anion transporter with a selenoxide group was able to form nanoparticles in water, whose activity was fully turned off due to the aggregation effect. The formed nanoparticles have a uniform size and can be readily dispersed in water at high concentrations. Turn-on of the nanoparticles by reducing molecules is proposed to be a combined process, including the reduction of selenoxide to selenide, disassembly of the nanoparticles and location of the transporter to the lipid membrane. Accordingly, a special acceleration phase can be observed in the turn-on kinetic curves. Since turn-on of the nanoparticles is quantitatively related to the amount of reductant, the nanoparticles can be activated in a step-by-step manner. Due to the sensibility of this system to thiols, cysteine can be detected at low nanomolar concentrations. This ultra-sensitive thiol-responsive transmembrane anion transport system is quite promising in biological applications.
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Affiliation(s)
- Chao Lang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Xin Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Zeyuan Dong
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Quan Luo
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Shanpeng Qiao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Zupeng Huang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Xiaotong Fan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Jiayun Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
| | - Junqiu Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China.
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Wang MC, Qiao S, Jiang Z, Luo SN, Qi J. Unraveling Photoinduced Spin Dynamics in the Topological Insulator Bi(2)Se(3). Phys Rev Lett 2016; 116:036601. [PMID: 26849605 DOI: 10.1103/physrevlett.116.036601] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Indexed: 06/05/2023]
Abstract
We report on a time-resolved ultrafast optical spectroscopy study of the topological insulator Bi_{2}Se_{3}. We unravel that a net spin polarization cannot only be generated using circularly polarized light via interband transitions between topological surface states (SSs), but also via transitions between SSs and bulk states. Our experiment demonstrates that tuning photon energy or temperature can essentially allow for photoexcitation of spin-polarized electrons to unoccupied topological SSs with two distinct spin relaxation times (∼25 and ∼300 fs), depending on the coupling between SSs and bulk states. The intrinsic mechanism leading to such distinctive spin dynamics is the scattering in SSs and bulk states which is dominated by E_{g}^{2} and A_{1g}^{1} phonon modes, respectively. These findings are suggestive of novel ways to manipulate the photoinduced coherent spins in topological insulators.
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Affiliation(s)
- M C Wang
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, People's Republic of China
| | - S Qiao
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 200031, People's Republic of China
| | - Z Jiang
- School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | - S N Luo
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, People's Republic of China
| | - J Qi
- The Peac Institute of Multiscale Sciences, Chengdu, Sichuan 610031, People's Republic of China
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu, Sichuan 610031, People's Republic of China
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35
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Cai C, Cai P, Hou C, Zeng X, Qiao S. Administration of Lactobacillus fermentum I5007 to young piglets improved their health and growth. J Anim Feed Sci 2014. [DOI: 10.22358/jafs/65684/2014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Gao Y, Luo Q, Qiao S, Wang L, Dong Z, Xu J, Liu J. Enzymetically Regulating the Self-Healing of Protein Hydrogels with High Healing Efficiency. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404531] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gao Y, Luo Q, Qiao S, Wang L, Dong Z, Xu J, Liu J. Enzymetically Regulating the Self-Healing of Protein Hydrogels with High Healing Efficiency. Angew Chem Int Ed Engl 2014; 53:9343-6. [DOI: 10.1002/anie.201404531] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 05/26/2014] [Indexed: 11/08/2022]
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38
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Jiang X, Thapa A, Lu J, Bhujohory V, Liu Y, Qiao S. Ultrasound-guided transvaginal radiofrequency myolysis for symptomatic uterine myomas. Eur J Obstet Gynecol Reprod Biol 2014; 177:38-43. [DOI: 10.1016/j.ejogrb.2014.03.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Revised: 03/13/2014] [Accepted: 03/19/2014] [Indexed: 10/25/2022]
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39
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Qiao S, Fan K, Iwashita T, Ichihara M, Yoshino M, Takahashi M. The involvement of reactive oxygen species derived from NADPH oxidase-1 activation on the constitutive tyrosine auto-phosphorylation of RET proteins. Free Radic Res 2014; 48:427-34. [DOI: 10.3109/10715762.2014.884278] [Citation(s) in RCA: 5] [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: 11/13/2022]
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40
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Li X, Li M, Huang S, Qiao S, Kang C, Shi D. 165 THE EFFECT OF shRNA TARGETING CLUSTER OF DIFFERENTIATION ANTIGEN 14 ON GENE EXPRESSION OF TNF-α, TLR4, AND IL-6 IN LIPOPOLYSACCHARIDE-INDUCED BUFFALO PERIPHERAL BLOOD MONOCYTE/MACROPHAGE. Reprod Fertil Dev 2013. [DOI: 10.1071/rdv25n1ab165] [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: 11/23/2022] Open
Abstract
Cluster of differentiation antigen 14 (CD14) plays a crucial role in the inflammatory response to lipopolysaccharide (LPS), which interacts with TLR4 and MD-2 to enable cell activation, leading to inflammation. Several studies have proved that upstream inhibition of bacterial LPS/toll-like receptor 4 (TLR4)/CD14-mediated inflammation pathway is an effective therapeutic approach for attenuating damaging immune activation. In this study, to explore the effect of CD14 down-regulation on TLR4 signal conductive-related genes expression after stimulation by LPS, five CD14 shRNA (319/421/755/970/1041) sequences and a negative control sequence (NC-1864) were synthesised and used to construct lentiviral recombinant plasmid pSicoR-GFP-shRNA. Lentiviral recombinant plasmids of pSicoR-GFP-shRNA and fusion expression vector of pDsRed-N1-buffalo CD14 were co-transfected into HEK293 using liposome. At 72 h after transfection, the expression of exogenous buffalo CD14 mRNA was reduced at different level for all shRNA plasmids, in which shRNA-1041 had the highest interfering efficiency by RT-qPCR and fluorescence-activated cell sorting analysis. Then, buffalo peripheral blood monocyte/macrophage was purified and infected by the CD14 shRNA lentivirus. After 7 days of infection, the cells were stimulated by 1 µg mL–1 LPS for 3 h, then the mRNA expression level of CD14, TLR4, IL-6, and TNF-α transcripts in the cells were detected by the RT-qPCR method. After stimulation by LPS, the expression of endogenous CD14 was significantly reduced by CD14 shRNA-1041, the mRNA expression level of TLR4, IL-6, and TNF-α genes was also significantly down-regulated in comparison with control group (P ≤ 0.01). In conclusion, the selected CD14 shRNA-1041 cannot only inhibit the expression of endogenous CD14 mRNA in buffalo peripheral blood monocyte/macrophage, but also downregulate the mRNA expression of CD14, TLR4, IL-6, and TNF-α. The above results demonstrate that knockdown of endogenous CD14 has obvious coordination effects on the signal conductive function of TLR4 after stimulating by LPS, and shRNA technology will provide a new way to prevent endotoxin-related diseases in livestock.
This work was supported by the National Transgenic Project (2009ZX08007-009B), Guangxi natural science funding (2012GXNSFCB053002), and funding of State Key Laboratory of Subtropical Bioresource Conservation and Utilisation (KSL-CUSAb-2012-02).
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Xi F, Shi T, Fan Q, Prestemon S, Wan W, An Z, Qiao S. A preliminary design of a knot undulator. J Synchrotron Radiat 2013; 20:145-152. [PMID: 23254667 DOI: 10.1107/s0909049512039301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 09/14/2012] [Indexed: 06/01/2023]
Abstract
The magnetic field configuration of the previously proposed knot undulator [Qiao et al. (2009). Rev. Sci. Instrum. 80, 085108] is realised in the design of a hybridized elliptically polarized undulator, which is presented. Although the details of the field distribution are not the same as those in the theoretical proposal, it is demonstrated that the practical knot undulator could work perfectly. In order to understand the minor discrepancies of the two, mathematical formulae of the synchrotron radiation are derived based on the Fourier transform of the magnetic field. From the results of calculations by simulation program, the discrepancies could be well interpreted by the corresponding formulae. The results show the importance of optimization of the end sections of the knot undulator to suppress the on-axis heat load. Furthermore, a study of the impact of the undulator on beam dynamics of the storage ring was conducted using the Shanghai Synchrotron Radiation Facility as an example and the results show that the knot undulator has little effect on the beam.
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Affiliation(s)
- Fuchun Xi
- Department of Physics, Laboratory of Advanced Materials, Fudan University, No. 220 Handan Rd, Shanghai 200433, People's Republic of China
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Abstract
Substrate-induced spin-orbit splitting in graphene on Ni, Au and Ag(111) is examined on the basis of density-functional theory. The Rashba splitting of π bands along the ΓM direction of the graphene surface Brillouin zone in graphene on Ni(111) is found to be very small (a few millielectronvolts), consistent with the experimental report of Rader et al. Instead, very strong Rashba splitting (near 100 meV) can be obtained for graphene with a certain stretch distortion on a Au substrate. It can be ascribed to the effective match in energy between the C 2p and Au 5d bands, obtained from the analysis of densities of states. The net charge transfer between the graphene and the substrates just affects the spin-orbit effect indirectly. The small spin-orbit splitting induced by the Ag substrates indicates that heavy metals do not always produce large SO splitting. Our findings provide important insights that are useful for understanding the metal-induced Rashba effect in graphene.
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Affiliation(s)
- Z Y Li
- State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai, People's Republic of China
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Gao L, Chen J, Chen J, Yang J, Qiao S, Xu B, Li J, Qin X, Yao M, Wu Y, Yuan J, You S, Chen Y, Dai J, Qian J, Gao R. e0362 Correlation between atherosclerotic plaques morphology and serous hypersensitive C-reactive protein in patients with premature coronary heart disease. Heart 2010. [DOI: 10.1136/hrt.2010.208967.362] [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: 11/04/2022]
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Yan J, Qiao S. Note: Leaf undulator to realize polarization control with low on-axis heat load. Rev Sci Instrum 2010; 81:056101. [PMID: 20515178 DOI: 10.1063/1.3385661] [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] [Indexed: 05/29/2023]
Abstract
Here, a new operational mode of an electromagnetic elliptical undulator, called leaf undulator, is proposed and studied. It can provide linearly polarized radiation at an arbitrary polarization direction depending on the magnitude and polarity of the horizontal and vertical magnetic fields. The polarization direction becomes 45 degrees when the horizontal and vertical magnetic fields are equal in strength. It is also able to switch the operational mode to purely circular or elliptical one. To lower the on-axis power density generated by undulators operating in linear mode, different designs have been presented in the past. Leaf undulator can suppress the on-axis power density by an order of magnitude compared to the so-called Knot and Figure-8 undulators, while maintaining comparable photon flux of the fundamental harmonic. Furthermore, it is possible to reach a lower fundamental energy under linear mode than by any other design using comparable magnetic field strengths.
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Affiliation(s)
- J Yan
- Department of Physics, Laboratory of Advanced Materials, and Surface Physics Laboratory (National Key Laboratory), Fudan University, Shanghai 200433, People's Republic of China
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45
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Cai GL, Yan J, Qiao S. Effect of myocardial preservation of early goal-directed therapy on severe sepsis/septic shock patients in the ICU. Crit Care 2010. [PMCID: PMC2934435 DOI: 10.1186/cc8631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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46
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Qiao S, Ma D, Feng D, Marks S, Schlueter R, Prestemon S, Hussain Z. Knot undulator to generate linearly polarized photons with low on-axis power density. Rev Sci Instrum 2009; 80:085108. [PMID: 19725682 DOI: 10.1063/1.3204452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Heat load on beamline optics is a serious obstacle for devices designed to generate pure linearly polarized photons in third generation synchrotron radiation facilities. For permanent magnet undulators, this problem can be overcome by implementing a figure-eight design configuration. As yet there has been no good method to tackle this problem for electromagnetic elliptical undulators. Here, a novel design and operational mode is suggested, which can generate pure linearly polarized photons with very low on-axis heat load. Additionally, the minimum photon energy capability of linearly polarized photons can be significantly extended by this method.
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Affiliation(s)
- S Qiao
- Department of Physics, Laboratory of Advanced Materials, Fudan University, Shanghai 200433, People's Republic of China
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Li N, Xu B, Dong W, Qiao S, Lee LF, Zhang HM, Li M, Du N. Detection and localization of naturally transmitted avian leukosis subgroup J virus in egg-type chickens by in situ PCR hybridization. ACTA ACUST UNITED AC 2008; 54:553-8. [PMID: 18045338 DOI: 10.1111/j.1439-0442.2007.01008.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Avian leukosis virus (ALV) subgroup J (ALV-J) is an exogenous ALV and causes myeloid leukosis in meat-type chickens. We have previously reported the isolation and identification of ALV-J in commercial layer flocks from 12 farms in northern China. In this report, we further characterized this virus by in situ polymerase chain reaction (PCR) hybridization in various affected organs of chickens from six of the 12 farms. A routine method for hybridization of nucleic acid uses radioactive probe, such as a P32-labelled probe. We found that the non-radioactive digoxigenin (DIG) probe is sensitive enough to detect the nucleic acid of virus in chicken tissues. We used a pair of published primers (H5/H7) specific to the gp85 envelope gene and 3' region of pol gene of prototype ALV-J strain HPRS-103. The total RNA extracted from tumour, bone marrow, oviduct, liver and spleen of the diseased chickens from six commercial flocks, and cDNA was successfully amplified. Using the primers and cDNA, we obtained an ALV-J-specific cDNA probe of 545 bp in length by PCR. In situ PCR with H5/H7 primers was carried out in the paraffin sections from tissues of the diseased chickens, followed by in situ hybridization using the DIG-labelled cDNA probe. Positive hybridization signals were detected in the cytoplasm of paraffin sections of tumours and other organ tissues. The intensity of the signals was documented using an image analysis system measuring integral optical density (IOD). The IOD values for tissue sections treated by in situ PCR hybridization are significantly higher than that by in situ hybridization alone (P < 0.01). These data taken together suggest that in situ PCR hybridization is a more sensitive technique for detection of ALV-J in tissue sections.
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Affiliation(s)
- N Li
- College of Veterinary Medicine, China Agricultural University, Beijing 100094, China
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48
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Yu H, Wang A, Li X, Qiao S. Effect of viable Lactobacillus fermentum on the
growth performance, nutrient digestibility and
immunity of weaned pigs. J Anim Feed Sci 2008. [DOI: 10.22358/jafs/66470/2008] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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49
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Xie BP, Yang K, Shen DW, Zhao JF, Ou HW, Wei J, Gu SY, Arita M, Qiao S, Namatame H, Taniguchi M, Kaneko N, Eisaki H, Tsuei KD, Cheng CM, Vobornik I, Fujii J, Rossi G, Yang ZQ, Feng DL. High-energy scale revival and giant kink in the dispersion of a cuprate superconductor. Phys Rev Lett 2007; 98:147001. [PMID: 17501304 DOI: 10.1103/physrevlett.98.147001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2006] [Indexed: 05/15/2023]
Abstract
In the present photoemission study of a cuprate superconductor Bi1.74Pb0.38Sr1.88CuO6+delta, we discovered a large scale dispersion of the lowest band, which unexpectedly follows the band structure calculation very well. Similar behavior observed in blue bronze and the Mott insulator Ca2CuO2Cl2 suggests that the origin of hopping-dominated dispersion in an overdoped cuprate might be quite complicated. A giant kink in the dispersion is observed, and the complete self-energy containing all interaction information is extracted for a doped cuprate. These results recovered significant missing pieces in our current understanding of the electronic structure of cuprates.
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Affiliation(s)
- B P Xie
- Department of Physics, Applied Surface Physics State Key Laboratory, and Advanced Materials Laboratory, Fudan University, Shanghai 200433, China
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50
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Zhang F, Li X, Harrison T, Li Z, Zhong H, Qiao S, Huang W, Zhang H, Zhuang H, Wang Y. P.304 Detection of HEV antigen in serum as a new marker for diagnosis of hepatitis E. J Clin Virol 2006. [DOI: 10.1016/s1386-6532(06)80481-6] [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: 11/16/2022]
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