51
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Huang B, Guan W, Wang C, Wu S, Cui Z, Zheng Y, Li Z, Zhu S, Jiang H, Chu PK, Liu X. S-Cu-FC/CuS modified GO carboxymethyl cellulose hydrogel for enhanced photocatalytic sterilization through homo-heterojunction interface accelerated charge transfer. Biomater Sci 2023; 11:3589-3602. [PMID: 37000600 DOI: 10.1039/d3bm00260h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
Abstract
Charge transfer and separation play a critical role in the photocatalytic efficiency of photoresponsive materials and their subsequent applications. Herein, for the first time, we constructed a homo-heterostructured S-Cu-FC/CuS modified carboxymethyl cellulose (CMC) hydrogel doped with graphene oxide (GO) (S-Cu-FC/CuS/GO@CMC) through an in situ ionic complexation reaction, which exhibited enhanced photocatalytic performance under 808 nm near-infrared (NIR) light irradiation. On the one hand, photo-excited charges can rapidly transfer across the homo-heterojunction interface with copper atoms in S-Cu-FC/CuS as both donors and acceptors. On the other hand, the interface between GO and S-Cu-FC/CuS also favors the fast transfer of photogenerated charges. Hence, with the assistance of a photothermal effect, the enhanced photocatalytic performance of S-Cu-FC/CuS/GO endowed the hydrogel with robust sterilization ability for killing 99.5% S. aureus and 100.0% E. coli under 10 min NIR light irradiation. An in vivo test disclosed that this hydrogel could also accelerate the healing of bacteria-infected wounds.
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Affiliation(s)
- Bo Huang
- College of pharmacy, Guangxi University of Chinese Medicine, Nanning 530022, China
- Biomedical Materials Engineering Research Centre, Hubei University, Wuhan 430062, China
| | - Wei Guan
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Chaofeng Wang
- School of Health Science and Biomedical Engineering, Hebei University of Technology, Tianjin, 300401, China.
| | - Shuilin Wu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
- School of Materials Science & Engineering, Peking University, Beijing, 100871, China.
- Biomedical Materials Engineering Research Centre, Hubei University, Wuhan 430062, China
| | - Zhenduo Cui
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Yufeng Zheng
- School of Materials Science & Engineering, Peking University, Beijing, 100871, China.
| | - Zhaoyang Li
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Shengli Zhu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Hui Jiang
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
| | - Xiangmei Liu
- School of Health Science and Biomedical Engineering, Hebei University of Technology, Tianjin, 300401, China.
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Zeng Y, Lv J, Yang L, Liu W, Yi Z, Liu Q, Hu C, Lv Y, Chu PK, Liu C. Short dual-core GaAs photonic crystal fiber splitter with a broad bandwidth and ultrahigh extinction ratio. Appl Opt 2023; 62:2237-2244. [PMID: 37132861 DOI: 10.1364/ao.483504] [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] [Indexed: 05/04/2023]
Abstract
Microstructured polarization beam splitters (PBSs) have attracted much interest in recent years. Here, a ring double-core photonic crystal fiber (PCB) PSB (PCB-PSB) with an ultrashort, broadband, and high extinction ratio (ER) was designed. The effects of the structural parameters on the properties were analyzed by the finite element method, which revealed that the optimal length of the PSB was 19.08877 µm and the ER was -324.257d B. The operating bandwidth for an ER of less than -20d B is 440 nm, and the wavelength range spans the full E+S+C+L+U band between 1,320 and 1,760 nm. The fault and manufacturing tolerance of the PBS was demonstrated for structural errors of ±1%. Moreover, the influence of temperature on the performance of the PBS was determined and discussed. Our results show that a PBS has excellent potential in optical fiber sensing and optical fiber communications.
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Mo S, Tang K, Liao Q, Xie L, Wu Y, Wang G, Ruan Q, Gao A, Lv Y, Cai K, Tong L, Wu Z, Chu PK, Wang H. Tuning the arrangement of lamellar nanostructures: achieving the dual function of physically killing bacteria and promoting osteogenesis. Mater Horiz 2023; 10:881-888. [PMID: 36537031 DOI: 10.1039/d2mh01147f] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Bacteria killing behavior based on physical effects is preferred for biomedical implants because of the negligible associated side effects. However, our current understanding of the antibacterial activity of nanostructures remains limited and, in practice, nanoarchitectures that are created on orthopedics should also promote osteogenesis simultaneously. In this study, tilted and vertical nanolamellar structures are fabricated on semi-crystalline polyether-ether-ketone (PEEK) via argon plasma treatment with or without pre-annealing. The two types of nanolamellae can physically kill the bacteria that come into contact with them, but the antibacterial mechanisms between the two are different. Specifically, the sharp edges of the vertically aligned nanolamellae can penetrate and damage the bacterial membrane, whereas bacteria are stuck on the tilted nanostructures and are stretched, leading to eventual destruction. The tilted nanolamellae are more desirable than the vertically aligned ones from the perspective of peri-implant bone regeneration. Our study not only reveals the role of the arrangement of nanostructures in orthopedic applications but also provides new information about different mechanisms of physical antibacterial activity.
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Affiliation(s)
- Shi Mo
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avene, Kowloon, Hong Kong, China
| | - Kaiwei Tang
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avene, Kowloon, Hong Kong, China
- School of Materials Science and Engineering, Xiangtan University, Xiangtan, China
| | - Qing Liao
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - Lingxia Xie
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - Yuzheng Wu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avene, Kowloon, Hong Kong, China
| | - Guomin Wang
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avene, Kowloon, Hong Kong, China
| | - Qingdong Ruan
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avene, Kowloon, Hong Kong, China
| | - Ang Gao
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - Yuanliang Lv
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
- School of Advanced Manufacturing, Fuzhou University, Fuzhou, China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Liping Tong
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avene, Kowloon, Hong Kong, China
| | - Zhengwei Wu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avene, Kowloon, Hong Kong, China
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, China.
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avene, Kowloon, Hong Kong, China
| | - Huaiyu Wang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
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Li Y, Liu X, Cui Z, Zheng Y, Jiang H, Zhang Y, Li Z, Zhu S, Chu PK, Wu S. Inflammation and Microbiota Regulation Potentiates Pneumonia Therapy by Biomimetic Bacteria and Macrophage Membrane Nanosystem. Research 2023; 6:0096. [PMID: 36996334 PMCID: PMC10042321 DOI: 10.34133/research.0096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/22/2023] [Indexed: 02/25/2023]
Abstract
While conventional nanosystems can target infected lung tissue, they cannot achieve precise cellular targeting and enhanced therapy by modulating inflammation and microbiota for effective therapy. Here, we designed a nucleus-targeted nanosystem with adenosine triphosphate (ATP) and reactive oxygen species stimuli-response to treat pneumonia coinfected with bacteria and virus that is enhanced through inflammation and microbiota regulation. The nucleus-targeted biomimetic nanosystem was prepared through the combined bacteria-macrophage membrane and loaded hypericin and ATP-responsive dibenzyl oxalate (MMHP) subsequently. The MMHP despoiled the Mg2+ of intracellular cytoplasm in bacteria to achieve an effective bactericidal performance. Meanwhile, MMHP can target the cell nucleus and inhibit the H1N1 virus duplication by inhibiting the activity of nucleoprotein. MMHP possessed an immunomodulatory ability to reduce the inflammatory response and activate CD8+ T cells for assisted infection elimination. During the mice model, the MMHP effectively treated pneumonia coinfected with Staphylococcus aureus and H1N1 virus. Meanwhile, MMHP mediated the composition of gut microbiota to enhance the pneumonia therapy. Therefore, the dual stimuli-responsive MMHP possessed promising clinical translational potential to therapy infectious pneumonia.
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Affiliation(s)
- Yuan Li
- School of Materials Science & Engineering, Peking University, Beijing 100871, China. The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science & Engineering, Tianjin University, Tian
| | - Xiangmei Liu
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science and Engineering, Hubei Universi
| | - Zhenduo Cui
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Yufeng Zheng
- School of Materials Science & Engineering, Peking University, Beijing 100871, China
| | - Hui Jiang
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Yu Zhang
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Zhaoyang Li
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Shengli Zhu
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science & Engineering, Tianjin University, Tianjin 300072, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong, China
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Shi T, Liu W, Zhu J, Fan X, Zhang Z, He X, He R, Wang J, Chen K, Ge Y, Sun X, Liu Y, Chu PK, Yu XF. CsPbBr 3-DMSO merged perovskite micro-bricks for efficient X-ray detection. Nano Res 2023; 16:1-7. [PMID: 37359075 PMCID: PMC9969382 DOI: 10.1007/s12274-023-5487-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/19/2022] [Accepted: 01/09/2023] [Indexed: 06/28/2023]
Abstract
Inorganic perovskite wafers with good stability and adjustable sizes are promising in X-ray detection but the high synthetic temperature is a hindrance. Herein, dimethyl sulfoxide (DMSO) is used to prepare the CsPbBr3 micro-bricks powder at room temperature. The CsPbBr3 powder has a cubic shape with few crystal defects, small charge trap density, and high crystallinity. A trace amount of DMSO attaches to the surface of the CsPbBr3 micro-bricks via Pb-O bonding, forming the CsPbBr3-DMSO adduct. During hot isostatic processing, the released DMSO vapor merges the CsPbBr3 micro-bricks, producing a compact and dense CsPbBr3 wafer with minimized grain boundaries and excellent charge transport properties. The CsPbBr3 wafer shows a large mobility-lifetime (μτ) product of 5.16 × 10-4 cm2·V-1, high sensitivity of 14,430 μC·Gyair-1·cm-2, low detection limit of 564 nGyair·s-1, as well as robust stability in X-ray detection. The results reveal a novel strategy with immense practical potential pertaining to high-contrast X-ray detection. Electronic Supplementary Material Supplementary material (further details of the characterization, SEM images, AFM images, KPFM images, schematic illustration, XRD patterns, XPS spectra, FTIR spectra, UPS spectra, and stability tests) is available in the online version of this article at 10.1007/s12274-023-5487-3.
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Affiliation(s)
- Tongyu Shi
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Wenjun Liu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123 China
| | - Jiongtao Zhu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
| | - Xiongsheng Fan
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
| | - Zhengyu Zhang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
| | - Xingchen He
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
| | - Rui He
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
| | - Jiahong Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Kezhen Chen
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Yongshuai Ge
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Xiangming Sun
- Key Laboratory of Quark and Lepton Physics (MOE), Central China Normal University, Wuhan, 430079 China
| | - Yanliang Liu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Paul K. Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, 999077 China
| | - Xue-Feng Yu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
- University of Chinese Academy of Sciences, Beijing, 100049 China
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56
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Feng H, Zhang C, Luo M, Hu Y, Dong Z, Xue S, Chu PK. Photo Energy-Enhanced Oxygen Reduction and Evolution Kinetics in Zn-Air Batteries. ACS Appl Mater Interfaces 2023; 15:6788-6796. [PMID: 36701643 DOI: 10.1021/acsami.2c19598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Harvesting solar energy directly to boost the sluggish kinetics of oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) on an air cathode is a promising approach. Herein, we synthesize a step-scheme (S-scheme) titanium dioxide-indium selenide (TiO2-In2Se3) heterojunction catalyst. The onset potential in ORR under light illumination reaches 1.28 V and the onset potential decreases to 0.48 V in OER. When an S-scheme TiO2-In2Se3 heterojunction is exposed to light, photogenerated electrons at the conduction band (CB) of TiO2 migrate to the valence band (VB) of In2Se3 due to the built-in electric field. The photogenerated electrons with strong reduction capability on the CB of In2Se3 and the holes with strong oxidation capability on the VB of TiO2 boost the cathode reaction kinetics (ORR/OER). The excellent outcome reveals tremendous commercial potential of photo-enhanced Zn-air batteries.
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Affiliation(s)
- Hange Feng
- College of Information Science and Technology, Donghua University, Shanghai 201620, P.R. China
- College of Science, Donghua University, Shanghai 201620, P.R. China
| | - Chaomin Zhang
- School of Mathematics, Physics and Statistics, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Menghao Luo
- College of Science, Donghua University, Shanghai 201620, P.R. China
| | - Yuechuan Hu
- College of Science, Donghua University, Shanghai 201620, P.R. China
| | - Zibo Dong
- College of Science, Donghua University, Shanghai 201620, P.R. China
| | - Shaolin Xue
- College of Science, Donghua University, Shanghai 201620, P.R. China
- Shanghai Institute of Intelligent Electronics and Systems, Donghua University, Shanghai 201620, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon 999077 Hong Kong, China
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Wang W, Shen J, Meng Y, Ye M, Lin S, Zhao Q, Wang L, Cheung KM, Wu S, Zheng Y, Liu X, Chu PK, Yeung KW, Zhang ZY. Corrigendum to “Magnesium cationic cue enriched interfacial tissue microenvironment nurtures the osseointegration of gamma-irradiated allograft bone” [Bioact. Mater. 10C (April 2022) 32-47]. Bioact Mater 2023; 20:165. [DOI: 10.1016/j.bioactmat.2022.04.009] [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: 12/01/2022] Open
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Ren X, Gao X, Cheng Y, Xie L, Tong L, Li W, Chu PK, Wang H. Maintenance of multipotency of bone marrow mesenchymal stem cells on poly(ε-caprolactone) nanoneedle arrays through the enhancement of cell-cell interaction. Front Bioeng Biotechnol 2023; 10:1076345. [PMID: 36698633 PMCID: PMC9870049 DOI: 10.3389/fbioe.2022.1076345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/23/2022] [Indexed: 01/11/2023] Open
Abstract
Mesenchymal stem cells (MSCs), with high self-renewal ability and multipotency, are commonly used as the seed cells for tissue engineering. However, the reduction and loss of multipotential ability after necessary expansion in vitro set up a heavy obstacle to the clinical application of MSCs. Here in this study, we exploit the autologous crystallization ability of biocompatible poly (ε-caprolactone) (PCL) to obtain uniformly distributed nanoneedle arrays. By controlling the molecular weight of PCL, nanoneedle with a width of 2 μm and height of 50 nm, 80 nm, and 100 nm can be successfully fabricated. After surface chemical modification with polydopamine (PDA), the water contact angle of the fabricated PCL nanoneedle arrays are reduced from 84° to almost 60° with no significant change of the nanostructure. All the fabricated substrates are cultured with bone marrow MSCs (BMMSCs), and the adhesion, spreading, proliferation ability and multipotency of cells on different substrates are investigated. Compared with the BMMSCs cultured on pure PCL nanoneedle arrays, the decoration of PDA can improve the adhesion and spreading of cells and further change them from aggregated distribution to laminar distribution. Nevertheless, the laminar distribution of cultured cells leads to a weak cell-cell interaction, and hence the multipotency of BMMSCs cultured on the PCL-PDA substrates is decimated. On the contrary, the pure PCL nanoneedle arrays can be used to maintain the multipotency of BMMSCs via clustered growth, and the PCL1 nanoneedle array with a height of 50 nm is more promising than the other 2 with regard to the highest proliferation rate and best multipotential differentiation ability of cultured cells. Interestingly, there is a positive correlation between the strength of cell-cell interaction and the multipotency of stem cells in vitro. In conclusion, we have successfully maintained the multipotency of BMMSCs by using the PCL nanoneedle arrays, especially the PCL1 nanoneedle array with a height of 50 nm, as the substrates for in vitro extension, and further revealed the importance of cell-cell interaction on the multipotency of MSCs. The study provides a theoretical basis for the behavioral regulation of MSCs, and is instructive to the design of tissue engineering scaffolds.
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Affiliation(s)
- Xiaoxue Ren
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xiaoting Gao
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China,University of Chinese Academy of Sciences, Beijing, China
| | - Yicheng Cheng
- Department of Stomatology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China,*Correspondence: Yicheng Cheng, ; Wei Li, ; Huaiyu Wang,
| | - Lingxia Xie
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Liping Tong
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Wei Li
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China,*Correspondence: Yicheng Cheng, ; Wei Li, ; Huaiyu Wang,
| | - Paul K. Chu
- Department of Physics, Department of Materials Science and Engineering, Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - Huaiyu Wang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China,*Correspondence: Yicheng Cheng, ; Wei Li, ; Huaiyu Wang,
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Huang C, Chu PK. Recommended practices and benchmarking of foam electrodes in water splitting. Trends in Chemistry 2023. [DOI: 10.1016/j.trechm.2022.12.009] [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: 01/09/2023]
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Wu Y, Xiao D, Liu P, Liao Q, Ruan Q, Huang C, Liu L, Li D, Zhang X, Li W, Tang K, Wu Z, Wang G, Wang H, Chu PK. Nanostructured Conductive Polypyrrole for Antibacterial Components in Flexible Wearable Devices. Research (Wash D C) 2023; 6:0074. [PMID: 36930769 PMCID: PMC10013960 DOI: 10.34133/research.0074] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 01/17/2023] [Indexed: 01/26/2023]
Abstract
The power generated by flexible wearable devices (FWDs) is normally insufficient to eradicate bacteria, and many conventional antibacterial strategies are also not suitable for flexible and wearable applications because of the strict mechanical and electrical requirements. Here, polypyrrole (PPy), a conductive polymer with a high mass density, is used to form a nanostructured surface on FWDs for antibacterial purposes. The conductive films with PPy nanorods (PNRs) are found to sterilize 98.2 ± 1.6% of Staphylococcus aureus and 99.6 ± 0.2% of Escherichia coli upon mild electrification (1 V). Bacteria killing stems from membrane stress produced by the PNRs and membrane depolarization caused by electrical neutralization. Additionally, the PNR films exhibit excellent biosafety and electrical stability. The results represent pioneering work in fabricating antibacterial components for FWDs by comprehensively taking into consideration the required conductivity, mechanical properties, and biosafety.
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Affiliation(s)
- Yuzheng Wu
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Dezhi Xiao
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Pei Liu
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Qing Liao
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Qingdong Ruan
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Chao Huang
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Liangliang Liu
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Dan Li
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Xiaolin Zhang
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Wei Li
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Kaiwei Tang
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Zhengwei Wu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China
| | - Guomin Wang
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.,Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Huaiyu Wang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
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Ding C, Ni L, Liu Q, Zhou C, Wang G, Chu PK, Wu Z. Cold air plasma improving rheumatoid arthritis via mitochondrial apoptosis pathway. Bioeng Transl Med 2023; 8:e10366. [PMID: 36684093 PMCID: PMC9842019 DOI: 10.1002/btm2.10366] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 06/03/2022] [Accepted: 06/12/2022] [Indexed: 01/25/2023] Open
Abstract
Rheumatoid arthritis (RA) has plagued physicians and patients for years due to the lack of targeted treatment. In this study, inspired by the commonality between rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS) and cancer cells, the therapeutic effects of cold air plasma (CAP) on RA are studied systematically and thoroughly. In/ex vivo results show that CAP with the proper dosage significantly relieves symptoms including synovial hyperplasia, inflammatory infiltration, and angiogenesis and eliminates the root cause by triggering the self-antioxidant capability of the surrounding tissue. The mechanism on the molecular and cellular level is also revealed that the spontaneous reactive oxygen species (ROS) cascade induces the mitochondrial apoptosis pathway on RA-FLS. This study reveals a new strategy for targeted treatment of RA and the mechanistic study provides the theoretical foundation for future development of plasma medicine.
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Affiliation(s)
- Chengbiao Ding
- School of Nuclear Science and Technology University of Science and Technology of China Hefei China.,Department of Rehabilitation Medicine The Second Hospital of Anhui Medical University Hefei Anhui China
| | - Leying Ni
- Department of Rehabilitation Medicine The Second Hospital of Anhui Medical University Hefei Anhui China
| | - Qi Liu
- School of Nuclear Science and Technology University of Science and Technology of China Hefei China
| | - Chenxu Zhou
- Department of Rehabilitation Medicine The Second Hospital of Anhui Medical University Hefei Anhui China
| | - Guomin Wang
- Department of Physics City University of Hong Kong Kowloon, Hong Kong China.,Department of Biomedical Engineering City University of Hong Kong Kowloon, Hong Kong China.,Department of Materials Science and Engineering City University of Hong Kong Kowloon, Hong Kong China
| | - Paul K Chu
- Department of Physics City University of Hong Kong Kowloon, Hong Kong China.,Department of Biomedical Engineering City University of Hong Kong Kowloon, Hong Kong China.,Department of Materials Science and Engineering City University of Hong Kong Kowloon, Hong Kong China
| | - Zhengwei Wu
- School of Nuclear Science and Technology University of Science and Technology of China Hefei China.,CAS Key Laboratory of Geospace Environment University of Science and Technology of China Hefei China.,Institute of Advanced Technology University of Science and Technology of China Hefei China
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62
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Zeng Y, Lv J, Fu H, Wu X, Yang L, Liu W, Yi Z, Liu Q, Hu C, Lv Y, Chu PK, Liu C. HE 1,1 mode excited surface plasmon resonance for high-sensitivity sensing by photonic crystal fibers. J Opt Soc Am A Opt Image Sci Vis 2023; 40:35-44. [PMID: 36607073 DOI: 10.1364/josaa.474692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/18/2022] [Indexed: 06/17/2023]
Abstract
Surface plasmon resonance (SPR) is widely used in photonic crystal fiber sensors. In this work, a photonic crystal fiber sensor based on HE1,1 mode excited SPR is designed and analyzed by the finite element method. The maximum wavelength sensitivity, optimal resolution, and amplitude sensitivity of the optical fiber sensor are 24,600 nm/RIU, 4.07×10-6RIU, and 1164.13RIU-1, respectively, for the refractive index range between 1.29 and 1.39. The sensor has excellent properties and wide application prospects in bimolecular and biochemical sensing, environmental monitoring, food safety, and other fields.
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63
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Wang Z, Li J, Qiao Y, Liu X, Zheng Y, Li Z, Shen J, Zhang Y, Zhu S, Jiang H, Liang Y, Cui Z, Chu PK, Wu S. Rapid Ferroelectric-Photoexcited Bacteria-Killing of Bi 4Ti 3O 12/Ti 3C 2T x Nanofiber Membranes. Adv Fiber Mater 2023; 5:484-496. [PMID: 36466134 PMCID: PMC9707173 DOI: 10.1007/s42765-022-00234-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/07/2022] [Indexed: 05/20/2023]
Abstract
UNLABELLED In this study, an antibacterial nanofiber membrane [polyvinylidene fluoride/Bi4Ti3O12/Ti3C2T x (PVDF/BTO/Ti3C2T x )] is fabricated using an electrostatic spinning process, in which the self-assembled BTO/Ti3C2T x heterojunction is incorporated into the PVDF matrix. Benefiting from the internal electric field induced by the spontaneously ferroelectric polarization of BTO, the photoexcited electrons and holes are driven to move in the opposite direction inside BTO, and the electrons are transferred to Ti3C2T x across the Schottky interface. Thus, directed charge separation and transfer are realized through the cooperation of the two components. The recombination of electron-hole pairs is maximumly inhibited, which notably improves the yield of reactive oxygen species by enhancing photocatalytic activity. Furthermore, the nanofiber membrane with an optimal doping ratio exhibits outstanding visible light absorption and photothermal conversion performance. Ultimately, photothermal effect and ferroelectric polarization enhanced photocatalysis endow the nanofiber membrane with the ability to kill 99.61% ± 0.28% Staphylococcus aureus and 99.71% ± 0.16% Escherichia coli under 20 min of light irradiation. This study brings new insights into the design of intelligent antibacterial textiles through a ferroelectric polarization strategy. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s42765-022-00234-8.
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Affiliation(s)
- Zhiying Wang
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China
| | - Jianfang Li
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China
| | - Yuqian Qiao
- School of Materials Science and Engineering, Peking University, Beijing, 100871 China
| | - Xiangmei Liu
- School of Health Science and Biomedical Engineering, Hebei University of Technology, Tianjin, 300401 China
| | - Yufeng Zheng
- School of Materials Science and Engineering, Peking University, Beijing, 100871 China
- Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080 China
| | - Zhaoyang Li
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China
| | - Jie Shen
- Shenzhen Key Laboratory of Spine Surgery, Department of Spine Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036 China
| | - Yu Zhang
- Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080 China
| | - Shengli Zhu
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China
| | - Hui Jiang
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China
| | - Yanqin Liang
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China
| | - Zhenduo Cui
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China
| | - Paul K. Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, 999077 China
| | - Shuilin Wu
- The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, School of Materials Science and Engineering, Tianjin University, Tianjin, 300072 China
- School of Materials Science and Engineering, Peking University, Beijing, 100871 China
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He N, Li J, Li W, Lin X, Fu Q, Peng X, Jin W, Yu Z, Chu PK. Poly(lactic acid) coating with a silane transition layer on MgAl LDH-coated biomedical Mg alloys for enhanced corrosion and cytocompatibility. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.130947] [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: 01/11/2023]
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65
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Luo Y, Wu Y, Braun A, Huang C, Li XY, Menon C, Chu PK. Defect Engineering To Tailor Metal Vacancies in 2D Conductive Metal-Organic Frameworks: An Example in Electrochemical Sensing. ACS Nano 2022; 16:20820-20830. [PMID: 36445326 DOI: 10.1021/acsnano.2c08097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Two-dimensional conductive metal-organic frameworks (2D conductive MOFs) with π-d conjugations exhibit high electrical conductivity and diverse coordination structures, making them constitute a desirable platform for new electronic devices. Defects are inevitable in the self-assembly process of 2D conductive MOFs. Arguably, defect engineering that deliberately manipulates defects demonstrates great potential to enhance the electrocatalytic activity of this family of novel materials. Herein, a facile and universal defect engineering strategy is proposed and demonstrated for metal vacancy regulation of metal benzenehexathiolato (BHT) coordination polymer films. Controllable metal vacancies can be produced by simply tuning the proton concentration during the confined self-assembly process at the liquid-liquid interface. This facile but universal defect design strategy has been proven to be effective in a class of materials including Cu-BHT, Ni-BHT, and Ag-BHT for physicochemical regulation. To further demonstrate the feasibility and practicality in electrochemical applications, the elaborately fabricated Cu-BHT films with abundant Cu vacancies deliver competitive performance in electrocatalytic sensing of H2O2. Mechanistic analysis revealed that the Cu vacancies act as effective active sites for adsorption and reduction of H2O2, and the tuned electronic structure boosts the electrocatalytic reaction. The developed advanced sensing platform confirms the excellent commercial potential of Cu-BHT sensors for H2O2. The findings provide insights into the molecular structure design of 2D conducting MOFs by defect engineering and demonstrate the commercial potential of Cu-BHT electrochemical sensors.
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Affiliation(s)
- Yang Luo
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR999077, China
- Laboratory for High Performance Ceramics, Swiss Federal Laboratories for Materials Science and Technology (Empa), Dübendorf8600, Switzerland
| | - Yinghong Wu
- Biomedical and Mobile Health Technology Lab, Department of Health Sciences and Technology, ETH Zürich, Zürich8008, Switzerland
| | - Artur Braun
- Laboratory for High Performance Ceramics, Swiss Federal Laboratories for Materials Science and Technology (Empa), Dübendorf8600, Switzerland
| | - Chao Huang
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR999077, China
| | - Xiao-Yan Li
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR999077, China
| | - Carlo Menon
- Biomedical and Mobile Health Technology Lab, Department of Health Sciences and Technology, ETH Zürich, Zürich8008, Switzerland
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR999077, China
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66
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Dehghan-Baniani D, Mehrjou B, Chu PK, Lee WYW, Wu H. Recent Advances in "Functional Engineering of Articular Cartilage Zones by Polymeric Biomaterials Mediated with Physical, Mechanical, and Biological/Chemical Cues". Adv Healthc Mater 2022; 12:e2202581. [PMID: 36571465 DOI: 10.1002/adhm.202202581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 12/19/2022] [Indexed: 12/27/2022]
Abstract
Articular cartilage (AC) plays an unquestionable role in joint movements but unfortunately the healing capacity is restricted due to its avascular and acellular nature. While cartilage tissue engineering has been lifesaving, it is very challenging to remodel the complex cartilage composition and architecture with gradient physio-mechanical properties vital to proper tissue functions. To address these issues, a better understanding of the intrinsic AC properties and how cells respond to stimuli from the external microenvironment must be better understood. This is essential in order to take one step closer to producing functional cartilaginous constructs for clinical use. Recently, biopolymers have aroused much attention due to their versatility, processability, and flexibility because the properties can be tailored to match the requirements of AC. This review highlights polymeric scaffolds developed in the past decade for reconstruction of zonal AC layers including the superficial zone, middle zone, and deep zone by means of exogenous stimuli such as physical, mechanical, and biological/chemical signals. The mimicked properties are reviewed in terms of the biochemical composition and organization, cell fate (morphology, orientation, and differentiation), as well as mechanical properties and finally, the challenges and potential ways to tackle them are discussed.
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Affiliation(s)
- Dorsa Dehghan-Baniani
- Department of Chemical and Biological Engineering Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.,Musculoskeletal Research Laboratory, SH Ho Scoliosis Research Laboratory, Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.,Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China
| | - Babak Mehrjou
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Wayne Yuk Wai Lee
- Musculoskeletal Research Laboratory, SH Ho Scoliosis Research Laboratory, Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.,Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong SAR, China.,Joint Scoliosis Research Centre of the Chinese University of Hong Kong and Nanjing University, The Chinese University of Hong Kong, Hong Kong SAR, China.,Center for Neuromusculoskeletal Restorative Medicine, CUHK InnoHK Centres, Hong Kong Science Park, Hong Kong SAR, China
| | - Hongkai Wu
- Department of Chemical and Biological Engineering Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong, China.,Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration, The Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong SAR, China
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67
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Zeng L, Zhu J, Chu PK, Huang L, Wang J, Zhou G, Yu XF. Catalytic Effects of Electrodes and Electrolytes in Metal-Sulfur Batteries: Progress and Prospective. Adv Mater 2022; 34:e2204636. [PMID: 35903947 DOI: 10.1002/adma.202204636] [Citation(s) in RCA: 8] [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: 05/23/2022] [Revised: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Metal-sulfur (M-S) batteries are promising energy-storage devices due to their advantages such as large energy density and the low cost of the raw materials. However, M-S batteries suffer from many drawbacks. Endowing the electrodes and electrolytes with the proper catalytic activity is crucial to improve the electrochemical properties of M-S batteries. With regard to the S cathodes, advanced electrode materials with enhanced electrocatalytic effects can capture polysulfides and accelerate electrochemical conversion and, as for the metal anodes, the proper electrode materials can provide active sites for metal deposition to reduce the deposition potential barrier and control the electroplating or stripping process. Moreover, an advanced electrolyte with desirable design can catalyze electrochemical reactions on the cathode and anode in high-performance M-S batteries. In this review, recent progress pertaining to the design of advanced electrode materials and electrolytes with the proper catalytic effects is summarized. The current progress of S cathodes and metal anodes in different types of M-S batteries are discussed and future development directions are described. The objective is to provide a comprehensive review on the current state-of-the-art S cathodes and metal anodes in M-S batteries and research guidance for future development of this important class of batteries.
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Affiliation(s)
- Linchao Zeng
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Jianhui Zhu
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Licong Huang
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Jiahong Wang
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Guangmin Zhou
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China
| | - Xue-Feng Yu
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
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68
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Chen Y, Tian Z, Wang X, Ran N, Wang C, Cui A, Lu H, Zhang M, Xue Z, Mei Y, Chu PK, Liu J, Hu Z, Di Z. 2D Transition Metal Dichalcogenide with Increased Entropy for Piezoelectric Electronics. Adv Mater 2022; 34:e2201630. [PMID: 35589374 DOI: 10.1002/adma.202201630] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 05/15/2022] [Indexed: 06/15/2023]
Abstract
Piezoelectricity in 2D transition metal dichalcogenides (TMDs) has attracted considerable interest because of their excellent flexibility and high piezoelectric coefficient compared to conventional piezoelectric bulk materials. However, the ability to regulate the piezoelectric properties is limited because the entropy is constant for certain binary TMDs other than multielement ones. Herein, in order to increase the entropy, a ternary TMDs alloy, Mo1- x Wx S2 , with different W concentrations, is synthesized. The W concentration in the Mo1- x Wx S2 alloy can be controlled precisely in the low-supersaturation synthesis and the entropy can be tuned accordingly. The Mo0.46 W0.54 S2 alloy (x = 0.54) has the highest configurational entropy and best piezoelectric properties, such as a piezoelectric coefficient of 4.22 pm V-1 and a piezoelectric output current of 150 pA at 0.24% strain. More importantly, it can be combined into a larger package to increase the output current to 600 pA to cater to self-powered applications. Combining with excellent mechanical durability, a mechanical sensor based on the Mo0.46 W0.54 S2 alloy is demonstrated for real-time health monitoring.
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Affiliation(s)
- Yulong Chen
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, Beijing, 100049, China
| | - Ziao Tian
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Xiang Wang
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Nian Ran
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Chen Wang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Anyang Cui
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Huihui Lu
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science, Beijing, 100049, China
| | - Miao Zhang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Zhongying Xue
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Yongfeng Mei
- Department of Materials Science, Fudan University, Shanghai, 200433, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Jianjun Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Zhigao Hu
- Technical Center for Multifunctional Magneto-Optical Spectroscopy (Shanghai), Engineering Research Center of Nanophotonics & Advanced Instrument (Ministry of Education), Department of Materials, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China
| | - Zengfeng Di
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
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Xie H, Geng S, Shao J, Luo G, Liu Q, Wang J, Chen Y, Chu PK, Li Z, Yu XF. Niobium Diselenide Nanosheets: An Emerging Biodegradable Nanoplatform for Efficient Cancer Phototheranostics in the NIR-II Window. Adv Healthc Mater 2022; 11:e2202126. [PMID: 36165220 DOI: 10.1002/adhm.202202126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 09/13/2022] [Indexed: 01/28/2023]
Abstract
As a prominent class of 2D transition metal dichalcogenides (TMDCs), niobium diselenide nanosheets (NbSe2 NSs) have garnered tremendous interest on account of promising applications pertaining to optoelectronics and energy storage. Although NbSe2 NSs have many unique advantages such as inherent biocompatibility and broad absorption in the NIR region, their biomedical applications have rarely been reported, especially as therapeutic agents for the second near-infrared (NIR-II) range. Herein, a biodegradable nanotherapeutic platform consisting of NbSe2 NSs is designed and demonstrated for NIR-II light-triggered photothermal therapy. NbSe2 NSs synthesized by grinding and liquid exfoliation exhibit superior photothermal conversion efficiency (48.3%) and remarkable photothermal stability in the NIR-II region. In vitro assessment demonstrates that NbSe2 NSs have favorable photothermal cell ablation efficiency and biocompatibility. After intravenous injection in vivo, the NbSe2 NSs accumulate passively in tumor sites to facilitate fluorescence imaging and tumor ablation by NIR-II illumination. Furthermore, as a result of gradual degradation in the physiological environment, NbSe2 NSs can be excreted from the body to avoid potential toxicity caused by long-term retention in vivo. The results reveal a promising NIR-II light-triggered PTT strategy with the aid of NbSe2 NSs and the platform is expected to have large potential in cancer theranostics.
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Affiliation(s)
- Hanhan Xie
- Shenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Shengyong Geng
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Jundong Shao
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- School of Biomedical Engineering, Guangzhou Medical University, Guangzhou, 510182, P. R. China
| | - Guanghong Luo
- Department of Medical Laboratory, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, P. R. China
| | - Qian Liu
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Jiahong Wang
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Yue Chen
- Department of Medical Laboratory, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
| | - Zhibin Li
- Department of Burn and Plastic Surgery, Shenzhen Institute of Translational Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, P. R. China
| | - Xue-Feng Yu
- Materials and Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
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Huang C, Chu PK. Recommended practices and benchmarking of foam electrodes in water splitting. Trends in Chemistry 2022. [DOI: 10.1016/j.trechm.2022.09.008] [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: 11/11/2022]
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71
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Xia L, Li Y, Song H, Li X, Gong W, Jiang X, Javanbakht M, Zhang X, Gao B, Chu PK. MoO 2 nanosheets anchored with Co nanoparticles as a bifunctional electrocatalytic platform for overall water splitting. RSC Adv 2022; 12:34760-34765. [PMID: 36545597 PMCID: PMC9721104 DOI: 10.1039/d2ra06117a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/02/2022] [Indexed: 12/12/2022] Open
Abstract
Electrochemical water splitting is one of the potential commercial techniques to produce clean hydrogen energy because of the high efficiency and environmental friendliness. However, development of low-cost bifunctional electrocatalysts that can replace Pt-based catalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is challenging. Herein, Co nanoparticles (NPs) are anchored on MoO2 nanosheets (Co/MoO2) by thermal reduction of the CoMoO4 nanosheet array in Ar/H2. The uniformly distributed Co NPs improve the electron transfer capability and modulate the surface states of the MoO2 nanosheets to enhance hydrogen desorption and HER kinetics. Moreover, the Co/MoO2 composite is beneficial to the interfacial structure and the MoO2 nanosheets prevent aggregation of Co NPs to improve the intrinsic OER characteristics in the alkaline electrolyte. As a result, the Co/MoO2 electrocatalyst shows low HER and OER overpotentials of 178 and 318 mV at a current density of 10 mA cm-2 in 1 M KOH. The electrolytic cell consisting of the bifunctional Co/MoO2 electrodes shows a small voltage of 1.72 V for a current density of 10 mA cm-2 in overall water splitting.
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Affiliation(s)
- Lu Xia
- The College of Resources and Environment Engineering and Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and TechnologyWuhan 430081China
| | - Yanjun Li
- The College of Resources and Environment Engineering and Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and TechnologyWuhan 430081China
| | - Hao Song
- The State Key Laboratory of Refractories and Metallurgy and Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and TechnologyWuhan 430081China,Department of Physics, Department of Materials Science and Engineering, Department of Biomedical Engineering, City University of Hong KongTat Chee AvenueKowloonHong KongChina
| | - Xingxing Li
- The State Key Laboratory of Refractories and Metallurgy and Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and TechnologyWuhan 430081China
| | - Wenjie Gong
- The College of Resources and Environment Engineering and Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and TechnologyWuhan 430081China
| | - Xinyu Jiang
- The College of Resources and Environment Engineering and Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and TechnologyWuhan 430081China
| | - Mehran Javanbakht
- Renewable Energy Research Center, Amirkabir University of TechnologyTehranIran
| | - Xuming Zhang
- The State Key Laboratory of Refractories and Metallurgy and Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and TechnologyWuhan 430081China
| | - Biao Gao
- The State Key Laboratory of Refractories and Metallurgy and Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and TechnologyWuhan 430081China
| | - Paul K. Chu
- Department of Physics, Department of Materials Science and Engineering, Department of Biomedical Engineering, City University of Hong KongTat Chee AvenueKowloonHong KongChina
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72
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Zhu W, Jiang Z, Peng X, Li Z, Woldu AR, Lu F, Fang Y, Chu PK, Hu L. Janus (Mo/ β-Mo 2C)@C heterostructure as an efficient electrocatalyst for the hydrogen evolution reaction in acidic and alkaline media. Nanotechnology 2022; 34:055704. [PMID: 36327458 DOI: 10.1088/1361-6528/ac9fdc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
To explore low-cost, high-efficiency, and noble-metal-free catalysts for electrocatalytic water splitting in both acidic and alkaline media, the metal-metal carbide Janus hierarchical structure comprising Mo andβ-Mo2C embedded on a carbon layer (Mo/β-Mo2C)@C is synthesized by a hydrothermal reaction and subsequent low-temperature magnesium thermic process. Systematic characterization by XRD, XPS, Raman scattering, and SEM/TEM reveals the successful formation of metallic Mo andβ-Mo2C nanoparticles. The synthesized (Mo/β-Mo2C)@C has a large specific surface area and boasts highly efficient hydrogen evolution reaction activity including low overpotentials of 152 and 171 mV at a current density of 10 mA cm-2and small Tafel slopes of 51.7 and 63.5 mV dec-1in acidic and alkaline media, respectively. In addition, the catalyst shows outstanding stability for 48 h in both acidic and alkaline media. The excellent catalytic activity originates from more active sites and greater electron conductivity bestowed by the carbon layer, which also improves the long-term stability in both acidic and alkaline solutions.
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Affiliation(s)
- Weiwei Zhu
- Department of Mechanical Engineering, Shantou University, Guangdong, 515063, People's Republic of China
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, People's Republic of China
| | - Zhongya Jiang
- Department of Mechanical Engineering, Shantou University, Guangdong, 515063, People's Republic of China
| | - Xiang Peng
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Hubei Engineering Technology Research Center of Optoelectronic and New Energy Materials, Wuhan Institute of Technology, Wuhan, 430205, People's Republic of China
| | - Zhaorong Li
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, People's Republic of China
| | - Abebe Reda Woldu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, People's Republic of China
- Department of Chemistry, College of Science, Bahir Dar University, Bahir Dar 79, Ethiopia
| | - Fushen Lu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, People's Republic of China
| | - Yiwen Fang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, People's Republic of China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China
| | - Liangsheng Hu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong, 515063, People's Republic of China
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73
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Liu W, Shi T, Zhu J, Zhang Z, Li D, He X, Fan X, Meng L, Wang J, He R, Ge Y, Liu Y, Chu PK, Yu X. PbI 2 -DMSO Assisted In Situ Growth of Perovskite Wafers for Sensitive Direct X-Ray Detection. Adv Sci (Weinh) 2022; 10:e2204512. [PMID: 36372541 PMCID: PMC9811467 DOI: 10.1002/advs.202204512] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 10/01/2022] [Indexed: 06/16/2023]
Abstract
Although perovskite wafers with a scalable size and thickness are suitable for direct X-ray detection, polycrystalline perovskite wafers have drawbacks such as the high defect density, defective grain boundaries, and low crystallinity. Herein, PbI2 -DMSO powders are introduced into the MAPbI3 wafer to facilitate crystal growth. The PbI2 powders absorb a certain amount of DMSO to form the PbI2 -DMSO powders and PbI2 -DMSO is converted back into PbI2 under heating while releasing DMSO vapor. During isostatic pressing of the MAPbI3 wafer with the PbI2 -DMSO solid additive, the released DMSO vapor facilitates in situ growth in the MAPbI3 wafer with enhanced crystallinity and reduced defect density. A dense and compact MAPbI3 wafer with a high mobility-lifetime (µτ) product of 8.70 × 10-4 cm2 V-1 is produced. The MAPbI3 -based direct X-ray detector fabricated for demonstration shows a high sensitivity of 1.58 × 104 µC Gyair-1 cm-2 and a low detection limit of 410 nGyair s-1 .
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Affiliation(s)
- Wenjun Liu
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
- Nano Science and Technology InstituteUniversity of Science and Technology of ChinaSuzhou215123China
| | - Tongyu Shi
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Jiongtao Zhu
- Research Center for Medical Artificial IntelligenceShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Zhenyu Zhang
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
| | - Dong Li
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
| | - Xingchen He
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
| | - Xiongsheng Fan
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
| | - Lingqiang Meng
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
| | - Jiahong Wang
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Rui He
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
| | - Yongshuai Ge
- University of Chinese Academy of SciencesBeijing100049P. R. China
- Research Center for Medical Artificial IntelligenceShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen518055China
| | - Yanliang Liu
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
- University of Chinese Academy of SciencesBeijing100049P. R. China
| | - Paul K. Chu
- Department of PhysicsDepartment of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongTat Chee Avenue, KowloonHong KongChina
| | - Xue‐Feng Yu
- Materials Interfaces CenterShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhenGuangdong518055China
- University of Chinese Academy of SciencesBeijing100049P. R. China
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74
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Feng H, Zhang C, Luo M, Hu Y, Dong Z, Xue S, Chu PK. A dual S-scheme TiO 2@In 2Se 3@Ag 3PO 4 heterojunction for efficient photocatalytic CO 2 reduction. Nanoscale 2022; 14:16303-16313. [PMID: 36301134 DOI: 10.1039/d2nr04707a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The excellent photoresponse of semiconductors enables them to be promising photocatalysts for CO2 reduction, but practical application is hampered by fast recombination of photogenerated carriers, low CO2 capture capacity and poor stability. Herein, mesoporous hollow nanospheres of a dual S-scheme titanium dioxide@indium selenide@silver phosphate (TiO2@In2Se3@Ag3PO4) heterojunction with a large specific surface area are designed and synthesized. The products of photocatalytic CO2 reduction are CH4, CH3OH and CO with yields of 3.98, 4.32 and 8.2 μmol g-1 h-1, respectively, and the photocatalysts exhibit excellent cycle performance. The excellent photocatalytic performance is attributed to the large specific surface area of the samples and the construction of dual S-scheme heterojunctions. The large specific surface area can provide sufficient active sites for photocatalytic activity. Simultaneously, the built-in electric field (IEF) in the dual S-scheme exposed to light can facilitate the migration of photogenerated electrons from the CB of the oxidation photocatalyst (OP) to the VB of the reduction semiconductor (RP), where they recombine with the photogenerated holes on the VB of the RP, leaving behind photogenerated carriers with high redox ability for photocatalytic activity. This work provides new insights into the mechanism and design of highly efficient heterojunction photocatalysts for CO2 reduction.
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Affiliation(s)
- Hange Feng
- College of Information Science and Technology, Donghua University, Shanghai 201620, P. R. China.
| | - Chaomin Zhang
- School of Mathematics, Physics and Statistics, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Menghao Luo
- College of Science, Donghua University, Shanghai 201620, P. R. China.
| | - Yuechuan Hu
- College of Science, Donghua University, Shanghai 201620, P. R. China.
| | - Zibo Dong
- College of Science, Donghua University, Shanghai 201620, P. R. China.
| | - Shaolin Xue
- College of Science, Donghua University, Shanghai 201620, P. R. China.
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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75
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Shi H, Zhang Y, Pang N, Xu S, Xiong D, Wang L, Yang P, Chu PK. Surface conductance analysis of X-MoS2 (X = Fe, Co, Ni) prepared on graphite felt as bifunctional catalysts for the hydrogen/oxidation evolution reactions. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141596] [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: 11/24/2022]
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76
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Zhang X, Huang A, Xiao Z, Wang M, Zhang J, Chu PK. Ambipolar steep-slope nanotransistors with Janus MoSSe/graphene heterostructures. Nanotechnology 2022; 34:015203. [PMID: 36191490 DOI: 10.1088/1361-6528/ac96f5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
The transfer characteristics and switching mechanism of the steep-slope transistor composed of the graphene/Janus MoSSe heterostructure are investigated by quantum transport calculation. The Schottky barrier height at the Gr/SMoSe interface and tunneling width between the channel and drain can be tuned by the gate voltage, so that the device exhibits ambipolar switching with two minima in the subthreshold swing slope. 34 and 29 mV decade-1subthreshold swings can be achieved and the on/off ratios are over 106and 108for the different switching mechanisms. The device provides a solution and guidance for the future design of low-power, high-performance devices.
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Affiliation(s)
- Xinjiang Zhang
- School of Physics, Beihang University, Beijing 100191, People's Republic of China
| | - Anping Huang
- School of Physics, Beihang University, Beijing 100191, People's Republic of China
| | - Zhisong Xiao
- School of Physics, Beihang University, Beijing 100191, People's Republic of China
| | - Mei Wang
- School of Physics, Beihang University, Beijing 100191, People's Republic of China
| | - Jing Zhang
- Microelectronics Department, North China University of Technology, Beijing 100041, People's Republic of China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, People's Republic of China
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77
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Mehrjou B, Wu Y, Liu P, Wang G, Chu PK. Design and Properties of Antimicrobial Biomaterials Surfaces. Adv Healthc Mater 2022:e2202073. [PMID: 36254817 DOI: 10.1002/adhm.202202073] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 08/17/2022] [Revised: 10/12/2022] [Indexed: 11/08/2022]
Abstract
Emergence of antibiotic-resistance pathogens has caused serious health issues and if the current trend is to continue, treatment of infection will become complicated and even unsuccessful due to new antimicrobial resistance (AMR). Therefore, there is a global drive to identify new methods to treat infection and develop better antibacterial materials and therapy. Although new and more potent antibiotics have aided the fight against microbes, they only offer a temporary solution because future bacteria strains may become resistant to these antibiotics and drugs. Recently, application of non-biological methods such electrical currents and photothermal/dynamic therapies to kill bacteria, reveals new approaches to design antimicrobial biomaterials, as complications stemming from drug-resistant bacteria can be obviated. Furthermore, recent research has focused on mimicking the surface patterns on plants and insects such as lotus leaves and dragonfly wings. Bio-inspired micro/nano patterns have been replicated on a variety of biomaterials to improve the bacterial resistance and other properties with good success. This is an exciting research area with immense practical and clinical potentials. In this review, recent advances in the application of chemical/biological approaches to combat bacterial infection and AMR are summarized and the related mechanisms are discussed. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Babak Mehrjou
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Yuzheng Wu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Pei Liu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Guomin Wang
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
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78
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Fu J, Liu X, Cui Z, Zheng Y, Jiang H, Zhang Y, Li Z, Liang Y, Zhu S, Chu PK, Yeung KWK, Wu S. Probiotic-based nanoparticles for targeted microbiota modulation and immune restoration in bacterial pneumonia. Natl Sci Rev 2022; 10:nwac221. [PMID: 36817841 PMCID: PMC9935993 DOI: 10.1093/nsr/nwac221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/05/2022] [Indexed: 11/12/2022] Open
Abstract
While conventional bacterial pneumonia mainly centralizes avoidance of bacterial colonization, it remains unclear how to restore the host immunity for hyperactive immunocompetent primary and immunocompromised secondary bacterial pneumonia. Here, probiotic-based nanoparticles of OASCLR were formed by coating chitosan, hyaluronic acid and ononin on living Lactobacillus rhamnosus. OASCLR nanoparticles could effectively kill various clinic common pathogens and antibacterial efficiency was >99.97%. Importantly, OASCLR could modulate lung microbiota, increasing the overall richness and diversity of microbiota by decreasing pathogens and increasing probiotic and commensal bacteria. Additionally, OASCLR could target inflammatory macrophages by the interaction of OASCLR with the macrophage binding site of CD44 and alleviate overactive immune responses for hyperactive immunocompetent pneumonia. Surprisingly, OASCLR could break the state of the macrophage's poor phagocytic ability by upregulating the expression of the extracellular matrix assembly, immune activation and fibroblast activation in immunocompromised pneumonia. The macrophage's phagocytic ability was increased from 2.61% to 12.3%. Our work provides a potential strategy for hyperactive immunocompetent primary and immunocompromised secondary bacterial pneumonia.
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Affiliation(s)
- Jieni Fu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China,School of Materials Science & Engineering, Peking University, Beijing 100871, China
| | - Xiangmei Liu
- School of Health Science & Biomedical Engineering, Hebei University of Technology, Tianjin 300401, China
| | - Zhenduo Cui
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
| | - Yufeng Zheng
- School of Materials Science & Engineering, Peking University, Beijing 100871, China
| | - Hui Jiang
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
| | - Yu Zhang
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Zhaoyang Li
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
| | - Yanqin Liang
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
| | - Shengli Zhu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin 300072, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Kelvin Wai Kwok Yeung
- Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
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79
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Rehman R, Zhang X, Chang M, Qin D, Liu Y, Wei P, Huang C, Wang B, Xiong F, Xu Y, Hu P, Han J, Chu PK. Ni-Containing Electrolytes for Superior Zinc-Ion Aqueous Batteries with Zinc Hexacyanoferrate Cathodes. ACS Omega 2022; 7:33942-33948. [PMID: 36188238 PMCID: PMC9520546 DOI: 10.1021/acsomega.2c02930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 09/06/2022] [Indexed: 06/16/2023]
Abstract
A one-step coprecipitation process is designed to synthesize zinc hexacyanoferrate (ZnHCF) cathodes in aqueous zinc-ion batteries (ZIBs). The morphology of the cathode is influenced by the concentration of the precursor solution and valence of iron ions. The rhombohedral ZnHCF sample exhibits high crystallinity on the microscale in the cut-angle cubic structure, whereas Na-rich NaZnHCF contains many interstitial water molecules in the rhombic nanoplates. Both samples show effective insertion of Zn ions in the aqueous ZnSO4 solution. ZnHCF shows a specific capacity of 66.7 mA h g-1, a redox voltage of 1.73 V, and fast decline in a few cycles. On the other hand, NaZnHCF has a lower specific capacity of 48.2 mA h g-1, showing two voltage platforms and robust cycling stability. However, owing to serious side reactions, both samples have low Columbic efficiency. To improve the properties such as Coulombic efficiency, specific capacity, and cycling stability, Ni ions are introduced by adding 10 wt % NiSO4 to the ZnSO4 electrolyte. The ZnHCF cathode in the Ni-containing electrolyte has the best properties such as a high specific capacity of 71.2 mA h g-1 at a current density of 100 mA g-1, 93% retention of the Coulombic efficiency, and a good rate performance manifested by a reversible capacity of 58.2 mA h g-1 at 1 A g-1. The results reveal a strategy to improve the electrochemical properties of aqueous ZIBs by modifying the electrolytes.
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Affiliation(s)
- Ratul Rehman
- School
of Materials Science and Engineering and State Key Laboratory for
Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
| | - Xiaolin Zhang
- Department
of Physics, Department of Materials Science and Engineering, and Department
of Biomedical Engineering, City University
of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China
| | - Miao Chang
- School
of Materials Science and Engineering and State Key Laboratory for
Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
| | - Daomin Qin
- School
of Materials Science and Engineering and State Key Laboratory for
Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
| | - Yi Liu
- School
of Materials Science and Engineering and State Key Laboratory for
Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
| | - Peng Wei
- School
of Materials Science and Engineering and State Key Laboratory for
Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
| | - Chao Huang
- Department
of Physics, Department of Materials Science and Engineering, and Department
of Biomedical Engineering, City University
of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China
| | - Bin Wang
- Department
of Physics, Department of Materials Science and Engineering, and Department
of Biomedical Engineering, City University
of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China
| | - Fangyu Xiong
- Department
of Physics, Department of Materials Science and Engineering, and Department
of Biomedical Engineering, City University
of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China
| | - Yue Xu
- School
of Materials Science and Engineering and State Key Laboratory for
Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
- Department
of Physics, Department of Materials Science and Engineering, and Department
of Biomedical Engineering, City University
of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China
| | - Pei Hu
- School
of Science, Hubei University of Technology, Wuhan 430068, People’s Republic of China
| | - Jiantao Han
- School
of Materials Science and Engineering and State Key Laboratory for
Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China
| | - Paul K. Chu
- Department
of Physics, Department of Materials Science and Engineering, and Department
of Biomedical Engineering, City University
of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China
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80
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Song G, He H, Chen W, Lv Y, Chu PK, Wang H, Li P. Reversibly Migratable Fluorescent Probe for Precise and Dynamic Evaluation of Cell Mitochondrial Membrane Potentials. Biosensors (Basel) 2022; 12:798. [PMID: 36290933 PMCID: PMC9599583 DOI: 10.3390/bios12100798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
The mitochondrial membrane potential (MMP, ΔΨmito) provides the charge gradient required for mitochondrial functions and is a key indicator of cellular health. The changes in MMP are closely related to diseases and the monitoring of MMP is thus vital for pathological study and drug development. However, most of the current fluorescent probes for MMP rely solely on the cell fluorescence intensity and are thus restricted by poor photostability, rendering them not suitable for long-term dynamic monitoring of MMP. Herein, an MMP-responsive fluorescent probe pyrrolyl quinolinium (PQ) which is capable of reversible migration between mitochondria and nucleolus is developed and demonstrated for dynamic evaluation of MMP. The fluorescence of PQ translocates from mitochondria to nucleoli when MMP decreases due to the intrinsic RNA-specificity and more importantly, the translocation is reversible. The cytoplasm to nucleolus fluorescence intensity ratio is positively correlated with MMP so that this method avoids the negative influence of photostability and imaging parameters. Various situations of MMP can be monitored in real time even without controls. Additionally, long-term dynamic evaluation of MMP is demonstrated for HeLa cells using PQ in oxidative environment. This study is expected to give impetus to the development of mitochondria-related disease diagnosis and drug screening.
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Affiliation(s)
- Guofen Song
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Haiwei He
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wanling Chen
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yuanliang Lv
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Paul K. Chu
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
- Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China
| | - Huaiyu Wang
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Penghui Li
- Institute of Biomedicine and Biotechnology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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81
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Liu Q, Zhao J, Sun Y, Wang S, Han M, Sun G, Lv J, Mu H, Chu PK, Liu C. Highly sensitive dual-core photonic quasicrystal fiber methane sensor based on surface plasmon resonance. J Opt Soc Am A Opt Image Sci Vis 2022; 39:1723-1728. [PMID: 36215640 DOI: 10.1364/josaa.468868] [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: 06/27/2022] [Accepted: 08/03/2022] [Indexed: 06/16/2023]
Abstract
A highly sensitive dual-core photonic quasicrystal fiber methane sensor based on surface plasmon resonance is designed and analyzed. In this sensor, cryptophane E is doped with polysiloxane and Ag and used as the sensitive film and plasma medium, respectively, for sensitive detection of methane. The influence of the structural parameters on the sensor properties is analyzed by the finite element method. The optimized dual-quasi-D-shape structure has excellent methane-sensing properties such as maximum and average wavelength sensitivities of 14 and 10.98 nm/%, respectively, in the methane concentration range of 0%-3.5%. The sensitivity is better than that of similar sensors reported previously.
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82
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Ma Y, Leng D, Zhang X, Fu J, Pi C, Zheng Y, Gao B, Li X, Li N, Chu PK, Luo Y, Huo K. Enhanced Activities in Alkaline Hydrogen and Oxygen Evolution Reactions on MoS 2 Electrocatalysts by In-Plane Sulfur Defects Coupled with Transition Metal Doping. Small 2022; 18:e2203173. [PMID: 36026534 DOI: 10.1002/smll.202203173] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/30/2022] [Indexed: 06/15/2023]
Abstract
2D transition metal disulfides (TMDs) are promising and cost-effective alternatives to noble-metal-based catalysts for hydrogen production. Activation of the inert basal plane of TMDs is crucial to improving the catalytic efficiency. Herein, introduction of in-plane sulfur vacancies (Sv ) and 3d transition metal dopants in concert activates the basal planes of MoS2 (M-Sv -MoS2 ) to achieve high activities in the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Acetate introducing mild wet chemical etching removes surface S atoms facilitating subsequent cation exchange between the exposed Mo atoms and targeted metal ions in solution. Density-functional theory calculation demonstrates that the exposed 3d transition metal dopants in MoS2 basal planes serve as multifunctional active centers, which not only reduce ΔGH* but also accelerate water oxidation. As a result, the optimal Ni-Sv -MoS2 and Co-Sv -MoS2 electrocatalysts show excellent stability and alkaline HER and OER characteristics such as low overpotentials of 101 and 190 mV at 10 mA cm-2 , respectively. The results reveal a strategy to activate the inert MoS2 basal planes by defect and doping co-engineering and the technique can be extended to other types of TMDs for high-efficiency electrocatalysis beyond water splitting.
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Affiliation(s)
- Yuanhang Ma
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Difei Leng
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Xuming Zhang
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Jijiang Fu
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Chaoran Pi
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Yang Zheng
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Biao Gao
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Xiangguo Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Neng Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Yongsong Luo
- Henan International Joint Laboratory of MXene Materials Microstructure, College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang, 473061, P. R. China
| | - Kaifu Huo
- Wuhan National Laboratory for Optoelectronics (WNLO) School of Optical and Electronic Information Huazhong University of Science and Technology Wuhan, Wuhan, 430074, P. R. China
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83
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Zeng L, Huang L, Zhu J, Li P, Chu PK, Wang J, Yu XF. Phosphorus-Based Materials for High-Performance Alkaline Metal Ion Batteries: Progress and Prospect. Small 2022; 18:e2201808. [PMID: 36026537 DOI: 10.1002/smll.202201808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Alkaline metal-ion batteries (AIBs) such as lithium-ion batteries (LIBs), sodium-ion batteries (NIBs), and potassium-ion batteries (KIBs) are potential energy storage systems. Currently, although LIBs are widely used in consumer electronics and electric vehicles, the electrochemical performance, safety, and cost of current AIBs are still unable to meet the needs for many future applications, such as large-scale energy storage, due to the low theoretical capacity of cathode/anode materials, flammability of electrolytes and limited Li resources. It is thus imperative to develop new materials to improve the properties of AIBs. Several promising cathodes, anodes, and electrolytes have been developed and among the new battery materials, phosphorus-based (P-based) materials have shown great promise. For example, P and metal phosphide anodes have high theoretical capacity, resource abundance, and environmental friendliness boding well for future high-energy-density AIBs. Besides, phosphate cathode materials have the advantages of low cost, high safety, high voltage, and robust stability, and P-based materials like LiPF6 and lithium phosphorus oxynitride are widely used electrolytes. In this paper, the latest development of P-based materials in AIBs, challenges, effective solutions, and new directions are discussed.
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Affiliation(s)
- Linchao Zeng
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Licong Huang
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Jianhui Zhu
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Peipei Li
- School of Materials Science and Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Jiahong Wang
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Xue-Feng Yu
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
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84
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Bian S, Liu Q, Zhang X, Ma C, Zhang Y, Cheng Z, Kang Y, Lu W, Chu PK, Yu XF, Wang J. Fabricating Black-Phosphorus/Iron-Tetraphosphide Heterostructure via a Solid-Phase Solution-Precipitation Method for High-Performance Nitrogen Reduction. Small 2022; 18:e2203284. [PMID: 35971184 DOI: 10.1002/smll.202203284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Although constructing heterostructures is considered as one of the most successful strategies to improve the activity of a catalyst, the heterostructures usually suffer from the cumbersome preparation treatments and low-yield. Inspired by a solid-phase solution-precipitation (SPSP) process, an approach for interface intensive heterostructures with high yield is developed. Herein, a black-phosphorus/iron-tetraphosphide (BP/FeP4 ) heterostructure is prepared mechanochemically with high transient pressure by the solid-phase ball milling approach. The BP/FeP4 heterostructure delivers excellent catalytic performance in the nitrogen reduction reaction (NRR) as exemplified by an NH3 yield of 77.6 µg h-1 mg cat . - 1 \[{\rm{mg}}_{{\rm{cat}}{\rm{.}}}^{{\bm{ - }}1}\] and Faradic efficiency of 62.9% (-0.2 V), which are superior to that of most NRR catalysts recently reported. Experimental investigation and density-functional theory calculation indicate the importance of excess phosphorus in the heterostructures on the NRR activity, which assists the Fe atom to activate N2 via adsorbing the H atom. The results demonstrate the great potential of this new type of heterostructures prepared by the SPSP approach. Benefiting from the simple preparation process and low cost, the heterostructures offer a new insight into the development of highly efficient catalysts.
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Affiliation(s)
- Shi Bian
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Qian Liu
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- Institute for Advanced Study, Chengdu University, Chengdu, 610106, P. R. China
| | - Xue Zhang
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Chao Ma
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Yanli Zhang
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Ziqiang Cheng
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Yihong Kang
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Wei Lu
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, China
| | - Xue-Feng Yu
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- Hubei Three Gorges Laboratory, Yichang, 443007, P. R. China
| | - Jiahong Wang
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China
- Hubei Three Gorges Laboratory, Yichang, 443007, P. R. China
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85
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Wan J, Qiu Y, Sun X, Ou M, Xu J, Zhang X, Liu Y, Sun S, Xu Y, Fang C, Huang L, Chu PK, Han J. Modulation of Redox Chemistry of Na 2Mn 3O 7 by Selective Boron Doping Prompted by Na Vacancies. ACS Appl Mater Interfaces 2022; 14:38769-38777. [PMID: 35976871 DOI: 10.1021/acsami.2c09719] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The small energy density and chemomechanical degradation of layered manganese oxide limit practical application to sodium-ion batteries (SIBs). Typically, Na2Mn3O7 shows a low redox plateau at 2.1 V versus Na/Na+, and the oxygen redox reaction at a high voltage causes structural collapse. Herein, a Na vacancy-induced boron doping strategy is demonstrated to improve the properties. Boron is incorporated into selective sites in the lattice in the center of the MnO6 octahedral ring at the O-layer. Bonding of boron in the TM layer enhances the electrochemical activity of low-valence Mn, giving rise to two reversible redox peaks at 2.45 and 2.55 V to enhance the average redox voltage. At the same time, the O 2p chemical state becomes weaker around the Fermi level, thus suppressing oxygen overoxidation for the high charge state and strengthening the layered structure during the redox reactions. The reduced Mn-O covalency and small diffusion barrier energy stemming from bonding of boron in the oxygen layer produce excellent rate characteristics. Modulation of the Mn 3d and O 2p orbital in Na2Mn3O7 by Na vacancies leads to selective doping of boron at different sites, and our results reveal that it is an important strategy for studying transition-metal-oxide-layered electrode materials.
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Affiliation(s)
- Jing Wan
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Yuegang Qiu
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Xueping Sun
- The Institute for Advanced Studies, Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Mingyang Ou
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Jia Xu
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Xiaoyu Zhang
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Yi Liu
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Shixiong Sun
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Yue Xu
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China
| | - Chun Fang
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Li Huang
- Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, China
| | - Jiantao Han
- State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
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86
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Li J, Li J, He N, Fu Q, Feng M, Li Q, Wang Q, Liu X, Xiao S, Jin W, Yu Z, Chu PK. In situ growth of Ca-Zn-P coatings on the Zn-pretreated WE43 Mg alloy to mitigate corrosion and enhance cytocompatibility. Colloids Surf B Biointerfaces 2022; 218:112798. [PMID: 36030726 DOI: 10.1016/j.colsurfb.2022.112798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 08/07/2022] [Accepted: 08/22/2022] [Indexed: 10/15/2022]
Abstract
Magnesium (Mg) alloys are potential materials for orthopedic fixation devices but rapid degradation of the materials restricts wider clinical applications. Herein, zinc-incorporated calcium phosphate (Ca-Zn-P) coatings are prepared on the Zn-pretreated WE43 Mg alloy by a hydrothermal technique under relatively stable and favorable conditions. The hydrothermal coating consists of a compact bottom layer of CaZn2(PO4)2∙2 H2O and ZnO granular crystals and a jagged upper layer of CaHPO4. The Zn coating reduces the corrosion current density of WE43 to (3.49 ± 1.60) × 10-5 A cm-2, whereas the Ca-Zn-P/Zn composite coating further reduces it by 3 orders of magnitude in the simulated body fluid (SBF). The charge transfer resistances of the Zn-coated and Ca-Zn-P/Zn-coated alloys increase by 49 and 7176 times to 835 and 1.22 × 105 Ω cm2, respectively. The 7-day immersion results reveal that the Zn coating cannot provide long-term protection to WE43 in SBF because of the formation of galvanic couples between the Zn coating and WE43. In contrast, Ca-Zn-P/Zn-coated WE43 remains intact after soaking for 7 days and furthermore, the Ca-Zn-P coating self-repairs and continues to grow despite dissolution. The compact and adherent Ca-Zn-P bottom layer plays a major role in mitigating corrosion of WE43 by hindering penetration of the aggressive medium and charge transfer of the corrosion reactions resulting in only slight corrosion of the Zn layer. Biologically, the Zn coating reduces attachment and proliferation of MC3T3-E1 pre-osteoblasts on WE43, but the composite coating fosters cell adhesion and proliferation which stems from the good biocompatibility of the hydrothermal layer and relatively stable surface conditions avoiding severe corrosion.
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Affiliation(s)
- Jingyao Li
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Jian Li
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Nian He
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Qingyun Fu
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Mingcheng Feng
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Qingyang Li
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China.
| | - Qiong Wang
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Xiangning Liu
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Shu Xiao
- Institute of Safety Science & Engineering, South China University of Technology, Guangzhou 510641, China
| | - Weihong Jin
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China; Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Zhentao Yu
- Institute of Advanced Wear & Corrosion Resistant and Functional Materials, Jinan University, Guangzhou 510632, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
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87
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Mu H, Wang Y, Lv J, Yi Z, Yang L, Chu PK, Liu C. Electric field enhancement by a hybrid dielectric-metal nanoantenna with a toroidal dipole contribution. Appl Opt 2022; 61:7125-7131. [PMID: 36256330 DOI: 10.1364/ao.466124] [Citation(s) in RCA: 2] [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: 06/07/2022] [Accepted: 07/26/2022] [Indexed: 06/16/2023]
Abstract
Plasmonic nanocavities enable extreme light-matter interactions by pushing light down to the nanoscale. The numerical simulation is carried out systematically on the slotted Φ-shaped Si disk system with the super-dipole mode based on the analysis of the scattering strength of electric and toroidal dipoles. New blocks are introduced to the zero-field strength region of a slotted Si disk system as a function of the field enhancement factors. The far-field scattering characteristics and near-field electromagnetic field distributions are investigated by a multipole decomposition analysis to elucidate the intrinsic causes of the field enhancement. In the hybrid metal-dielectric nanoantenna, the Φ-shaped Si structure is prepared by superimposing Au nanoantennas for further field enhancement. In addition, the effects of the placement of an electric dipole emitter on the Purcell factor are derived. The geometric volume of the system is increased, and the electric field strength is improved, leading to an electric field increase of ∼30. Coupling between the super-dipole mode of the dielectric nanostructure and plasmonic modes of the metallic nanoantenna produces an enhancement as large as 16 times. Our results reveal a greatly enhanced super-dipole mode by electromagnetic coupling in composite structures, which will play a significant role in enhanced nonlinear photonics, near-field enhancement spectroscopy, and strong photon-exciton coupling.
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88
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Liu J, Zhang X, Wang J, Gu L, Chu PK, Yu XF. Global Structure Search for New 2D PtSSe Allotropes and Their Potential for Thermoelectirc and Piezoelectric applications. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139913] [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: 11/27/2022]
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89
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Cheng H, Wang J, Yang Y, Shi H, Shi J, Jiao X, Han P, Yao X, Chen W, Wei X, Chu PK, Zhang X. Ti 3 C 2 T X MXene Modified with ZnTCPP with Bacteria Capturing Capability and Enhanced Visible Light Photocatalytic Antibacterial Activity. Small 2022; 18:e2200857. [PMID: 35657068 DOI: 10.1002/smll.202200857] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/07/2022] [Indexed: 06/15/2023]
Abstract
Light-assisted antibacterial therapy is a promising alternative to antibiotic therapy due to the high antibacterial efficacy without bacterial resistance. Recent research has mainly focused on the use of near-infrared light irradiation to kill bacteria by taking advantage of the synergistic effects rendered by hyperthermia and radical oxygen species. However, photocatalytic antibacterial therapy excited by visible light is more convenient and practical, especially for wounds. Herein, a visible light responsive organic-inorganic hybrid of ZnTCPP/Ti3 C2 TX is designed and fabricated to treat bacterial infection with antibacterial efficiency of 99.86% and 99.92% within 10 min against Staphylococcus aureus and Escherichia coli, respectively. The porphyrin-metal complex, ZnTCPP, is assembled on the surface of Ti3 C2 TX MXene to capture bacteria electrostatically and the Schottky junction formed between Ti3 C2 TX and ZnTCPP promotes visible light utilization, accelerates charge separation, and enhances the mobility of photogenerated charges, and finally increases the photocatalytic activity. As a result of the excellent bacteria capturing ability and photocatalytic antibacterial effects, ZnTCPP/Ti3 C2 TX exposed to visible light has excellent antibacterial properties in vitro and in vivo. Therefore, organic-inorganic materials that have been demonstrated to possess good biocompatibility and enhance wound healing have large potential in bio-photocatalysis, antibacterial therapy, as well as antibiotics-free treatment of wounds.
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Affiliation(s)
- Hao Cheng
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Jiameng Wang
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Yongqiang Yang
- National Graphene Products Quality Inspection and Testing Center (Jiangsu), Special Equipment Safety Supervision Inspection Institute of Jiangsu Province, Yanxin Road 330, Wuxi, 214174, P. R. China
| | - Huixian Shi
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Jing Shi
- Analytical Instrumentation Center, State Key Laboratory of Coal Conversion, Institute of coal chemistry, Chinese Academy of Sciences, Taiyuan, 030001, P. R. China
| | - Xiong Jiao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Peide Han
- College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Xiaohong Yao
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Weiyi Chen
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Xiaochun Wei
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Department of Orthopedics, Second Hospital of Shanxi Medical University, Taiyuan, 030001, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China
| | - Xiangyu Zhang
- Shanxi Key Laboratory of Biomedical Metal Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
- Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Department of Orthopedics, Second Hospital of Shanxi Medical University, Taiyuan, 030001, P. R. China
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90
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Qayum A, Peng X, Yuan J, Qu Y, Zhou J, Huang Z, Xia H, Liu Z, Tan DQ, Chu PK, Lu F, Hu L. Highly Durable and Efficient Ni-FeO x/FeNi 3 Electrocatalysts Synthesized by a Facile In Situ Combustion-Based Method for Overall Water Splitting with Large Current Densities. ACS Appl Mater Interfaces 2022; 14:27842-27853. [PMID: 35686853 DOI: 10.1021/acsami.2c04562] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ni-/Fe-based materials are promising electrocatalysts for the oxygen evolution reaction (OER) but usually are not suitable for the hydrogen evolution reaction (HER). Herein, a durable and bifunctional catalyst consisting of Ni-FeOx and FeNi3 is prepared on nickel foam (Ni-FeOx/FeNi3/NF) by in situ solution combustion and subsequent calcination to accomplish efficient alkaline water splitting. Density functional theory (DFT) calculation shows that the high HER activity is attributed to the strong electronic coupling effects between FeOx and FeNi3 in the Janus nanoparticles by modulating ΔGH* and electronic states. Consequently, small overpotentials (η) of 71 and 272 mV in HER and 269 and 405 mV in OER yield current densities (j) of 50 and 1000 mA cm-2, respectively. The catalyst shows outstanding stability for 280 and 200 h in HER and OER at a j of ∼50 mA cm-2. Also, the robustness and mechanical stability of the electrode at an elevated j of ∼500 mA cm-2 are excellent. Moreover, Ni-FeOx/FeNi3/NF shows excellent water splitting activities as a bifunctional catalyst as exemplified by j of 50 and 500 mA cm-2 at cell voltages of 1.58 and 1.80 V, respectively. The Ni-FeOx/FeNi3/NF structure synthesized by the novel, simple, and scalable strategy has large potential in commercial water electrolysis, and the in situ combustion method holds great promise in the fabrication of thin-film electrodes for different applications.
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Affiliation(s)
- Abdul Qayum
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Xiang Peng
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Hubei Engineering Technology Research Center of Optoelectronic and New Energy Materials, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Jianfa Yuan
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Yuanduo Qu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Jianhong Zhou
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Zanling Huang
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Hong Xia
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
- Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Jieyang, Guangdong 522000, P. R. China
| | - Zhi Liu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
| | - Daniel Qi Tan
- Materials Science and Engineering Department, and Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion-Israel Institute of Technology, Shantou, Guangdong 515063, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon 999077, Hong Kong, P. R. China
| | - Fushen Lu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
- Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Jieyang, Guangdong 522000, P. R. China
| | - Liangsheng Hu
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou, Guangdong 515063, P. R. China
- Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Jieyang, Guangdong 522000, P. R. China
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91
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Li M, Zhu K, Zhao H, Meng Z, Wang C, Chu PK. Construction of α-MnO 2 on Carbon Fibers Modified with Carbon Nanotubes for Ultrafast Flexible Supercapacitors in Ionic Liquid Electrolytes with Wide Voltage Windows. Nanomaterials (Basel) 2022; 12:nano12122020. [PMID: 35745359 PMCID: PMC9228112 DOI: 10.3390/nano12122020] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/03/2022] [Accepted: 06/08/2022] [Indexed: 02/01/2023]
Abstract
In this study, α-MnO2 and Fe2O3 nanomaterials are prepared on a carbon fiber modified with carbon nanotubes to produce the nonbinder core–shell positive (α-MnO2@CNTs/CC) and negative (Fe2O3@CNTs/CC) electrodes that can be operated in a wide voltage window in ultrafast asymmetrical flexible supercapacitors. MnO2 and Fe2O3 have attracted wide research interests as electrode materials in energy storage applications because of the abundant natural resources, high theoretical specific capacities, environmental friendliness, and low cost. The electrochemical performance of each electrode is assessed in 1 M Na2SO4 and the energy storage properties of the supercapacitors consisting of the two composite electrodes are determined in Na2SO4 and EMImBF4 electrolytes in the 2 V and 4 V windows. The 2 V supercapacitor can withstand a large scanning rate of 5000 mV S−1 without obvious changes in the cyclic voltammetry (CV) curves, besides showing a maximum energy density of 57.29 Wh kg−1 at a power density of 833.35 W kg−1. Furthermore, the supercapacitor retains 87.06% of the capacity after 20,000 galvanostatic charging and discharging (GCD) cycles. The 4 V flexible supercapacitor shows a discharging time of 1260 s and specific capacitance of 124.8 F g−1 at a current of 0.5 mA and retains 87.77% of the initial specific capacitance after 5000 GCD cycles. The mechanical robustness and practicality are demonstrated by physical bending and the powering of LED arrays. In addition, the contributions of the active materials to the capacitive properties and the underlying mechanisms are explored and discussed
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Affiliation(s)
- Mai Li
- College of Science, Donghua University, Shanghai 201620, China; (K.Z.); (H.Z.); (C.W.)
- Correspondence: (M.L.); (Z.M.)
| | - Kailan Zhu
- College of Science, Donghua University, Shanghai 201620, China; (K.Z.); (H.Z.); (C.W.)
| | - Hanxue Zhao
- College of Science, Donghua University, Shanghai 201620, China; (K.Z.); (H.Z.); (C.W.)
| | - Zheyi Meng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science, Donghua University, Shanghai 201620, China
- Correspondence: (M.L.); (Z.M.)
| | - Chunrui Wang
- College of Science, Donghua University, Shanghai 201620, China; (K.Z.); (H.Z.); (C.W.)
| | - Paul K. Chu
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China;
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92
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Yang L, Shi Y, Yi Z, Song X, Lv J, Chu PK, Liu C. Detection of kerosene adulteration in automobile fuel by a low-loss surface plasmon resonance (SPR) chemical sensor. Anal Methods 2022; 14:2153-2160. [PMID: 35621009 DOI: 10.1039/d2ay00508e] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A surface plasmon resonance (SPR) chemical sensor with gold as the sensitive material has been designed to detect the adulteration of petrol by kerosene. Samples of petrol adulterated with kerosene were prepared in different ratios by volume (v/v). Kerosene concentrations ranging from 0% to 80% can be detected by monitoring the optical spectra, and the properties of the sensor were analyzed using the COMSOL Multiphysics software. The sensor shows a high spectral sensitivity of 7117 nm per RIU and a sensing resolution of 1.4 × 10-4 RIU. The excellent sensing properties and a low confinement loss of 5.4 dB cm-1 render the sensor competitive in SPR sensing applications.
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Affiliation(s)
- Lin Yang
- School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
| | - Ying Shi
- Institute of Unconventional Oil and Gas, Northeast Petroleum University, Daqing 163318, China
| | - Zao Yi
- Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology, Mianyang 621010, China
| | - Xinping Song
- School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
| | - Jingwei Lv
- School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Chao Liu
- School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, P. R. China
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93
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Pi C, Li X, Zhang X, Song H, Zheng Y, Gao B, Kızılaslan A, Chu PK, Huo K. In-Plane Mott-Schottky Effects Enabling Efficient Hydrogen Evolution from Mo 5 N 6 -MoS 2 Heterojunction Nanosheets in Universal-pH Electrolytes. Small 2022; 18:e2201137. [PMID: 35527344 DOI: 10.1002/smll.202201137] [Citation(s) in RCA: 8] [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: 02/21/2022] [Revised: 04/15/2022] [Indexed: 06/14/2023]
Abstract
Cost-effective electrocatalysts for the hydrogen evolution reaction (HER) spanning a wide pH range are highly desirable but still challenging for hydrogen production via electrochemical water splitting. Herein, Mo5 N6 -MoS2 heterojunction nanosheets prepared on hollow carbon nanoribbons (Mo5 N6 -MoS2 /HCNRs) are designed as Mott-Schottky electrocatalysts for efficient pH-universal HER. The in-plane Mo5 N6 -MoS2 Mott-Schottky heterointerface induces electron redistribution and a built-in electric field, which effectively activates the inert MoS2 basal planes to intrinsically increase the electrocatalytic activity, improve electronic conductivity, and boost water dissociation activity. Moreover, the vertical Mo5 N6 -MoS2 nanosheets provide more activated sites for the electrochemical reaction and facilitate mass/electrolyte transport, while the tightly coupled HCNRs substrate and metallic Mo5 N6 provide fast electron transfer paths. Consequently, the Mo5 N6 -MoS2 /HCNRs electrocatalyst delivers excellent pH-universal HER performances exemplified by ultralow overpotentials of 57, 59, and 53 mV at a current density of 10 mA cm-2 in acidic, neutral, and alkaline electrolytes with Tafel slopes of 38.4, 43.5, and 37.9 mV dec-1 , respectively, which are superior to those of the reported MoS2 -based catalysts and outperform Pt in overall water splitting. This work proposes a new strategy to construct an in-plane heterointerface on the nanoscale and provides fresh insights into the HER electrocatalytic mechanism of MoS2 -based heterostructures.
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Affiliation(s)
- Chaoran Pi
- Wuhan National Laboratory for Optoelectronics (WNLO), School of Optical and Electronic Information Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Xingxing Li
- College of Architecture and Materials Engineering, Hubei University of Education, Gaoxin Road 129, Wuhan, 430205, P. R. China
| | - Xuming Zhang
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Hao Song
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Yang Zheng
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Biao Gao
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan, 430081, P. R. China
| | - Abdulkadir Kızılaslan
- Department of Metallurgy and Materials Science, Sakarya University, Sakarya, 54050, Turkey
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Kaifu Huo
- Wuhan National Laboratory for Optoelectronics (WNLO), School of Optical and Electronic Information Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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94
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Feng M, Fu Q, Li J, Li J, Wang Q, Liu X, Jin W, Li W, Chu PK, Yu Z. Sodium alginate coating on biodegradable high-purity magnesium with a hydroxide/silane transition layer for corrosion retardation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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95
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Wang Y, Zhang M, Xue Z, Chen X, Mei Y, Chu PK, Tian Z, Wu X, Di Z. Atomistic Observation of the Local Phase Transition in MoTe 2 for Application in Homojunction Photodetectors. Small 2022; 18:e2200913. [PMID: 35411673 DOI: 10.1002/smll.202200913] [Citation(s) in RCA: 8] [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: 02/11/2022] [Revised: 03/26/2022] [Indexed: 06/14/2023]
Abstract
Direct atomic-scale observation of the local phase transition in transition metal dichalcogenides (TMDCs) is critically required to carry out in-depth studies of their atomic structures and electronic features. However, the structural aspects including crystal symmetries tend to be unclear and unintuitive in real-time monitoring of the phase transition process. Herein, by using in situ transmission electron microscopy, information about the phase transition mechanism of MoTe2 from hexagonal structure (2H phase) to monoclinic structure (1T' phase) driven by sublimation of Te atoms after a spike annealing is obtained directly. Furthermore, with the control of Te atom sublimation by modulating the hexagonal boron nitride (h-BN) coverage in the desired area, the lateral 1T'-enriched MoTe2 /2H MoTe2 homojunction can be one-step constructed via an annealing treatment. Owing to the gradient bandgap provided by 1T'-enriched MoTe2 and 2H MoTe2 , the photodetector composed of the 1T'-enriched MoTe2 /2H MoTe2 homojunction shows fast photoresponse and ten times larger photocurrents than that consisting of a pure 2H MoTe2 channel. The study reveals a route to improve the performance of optoelectronic and electronic devices based on TMDCs with both semiconducting and semimetallic phases.
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Affiliation(s)
- Yalan Wang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Miao Zhang
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Zhongying Xue
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Xinqian Chen
- Shanghai Key Laboratory of Multidimensional Information Processing, School of Communication and Electronic Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Yongfeng Mei
- Department of Materials Science, State Key Laboratory of ASIC and Systems, Fudan University, Shanghai, 200433, P. R. China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, 999077, P. R. China
| | - Ziao Tian
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Xing Wu
- Shanghai Key Laboratory of Multidimensional Information Processing, School of Communication and Electronic Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Zengfeng Di
- State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
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96
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Li Z, Bu J, Zhu X, Zhou H, Ren K, Chu PK, Li L, Hu X, Ding X. Anti-tumor immunity and ferroptosis of hepatocellular carcinoma are enhanced by combined therapy of sorafenib and delivering modified GO-based PD-L1 siRNAs. Biomater Adv 2022; 136:212761. [PMID: 35929305 DOI: 10.1016/j.bioadv.2022.212761] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/08/2022] [Accepted: 03/11/2022] [Indexed: 06/15/2023]
Abstract
Programmed cell death receptor ligand 1 (PD-L1)/PD-1 signaling has been exploited to design inhibitors that deliver promising clinical outcome albeit with limited efficacy. Herein, we prepare graphene oxide (GO)-PEI-PEG with low cytotoxicity and long stability and GO-PEI-PEG delivers PD-L1 siRNAs to hepatocellular carcinoma (HCC) cells by the endocytosis-lysosome pathway. The functional GO-PEI-PEG/PD-L1 siRNAs decrease PD-L1 and PD-1 abundance, increase pro-inflammation cytokine IFN-γ and TNF-α release, and improve the proliferation activity of Jurkat T cells. Since GO-PEI-PEG targets the mouse liver effectively, the intrahepatic tumors in C57BL/6 mice are treated with GO-PEI-PEG/Pd-l1 siRNAs via the tail vein, resulting in shrinkage of the HCC tumors and boosting the anti-tumor efficacy in combination with oral sorafenib. A single treatment improves the total CD3+ and cytotoxic CD8+ T cell infiltration in the HCC tumor tissues and even spleen and upregulates the expression of Perforin, Gzmb, Ifng, Il-1b and Tnfa in the tumors after the combined treatment. Both the single and combined treatments enhance reactive oxygen species (ROS) accumulation, and improved HCC ferroptosis. The results suggest that GO-PEI-PEG delivered PD-L1 siRNAs combined with oral sorafenib can activate the adaptive immunity and tumor ferroptosis and reveal an effective therapy to treat advanced HCC patients.
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Affiliation(s)
- Zhiwei Li
- National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Jiaqi Bu
- College of Chemistry, Hunan Normal University, Changsha 410081, China
| | - Xinyu Zhu
- National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Hao Zhou
- National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha 410081, China
| | - Kaiqun Ren
- Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province, Hunan Normal University, Changsha 410013, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Limin Li
- College of Engineering and Design, Hunan Normal University, Changsha 410081, China.
| | - Xiang Hu
- National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha 410081, China.
| | - Xiaofeng Ding
- National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Science, Hunan Normal University, Changsha 410081, China.
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97
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Hang R, Tian X, Qu G, Zhao Y, Yao R, Zhang Y, Wei W, Yao X, Chu PK. Exosomes derived from magnesium ion-stimulated macrophages inhibit angiogenesis. Biomed Mater 2022; 17. [PMID: 35477160 DOI: 10.1088/1748-605x/ac6b03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 04/27/2022] [Indexed: 11/11/2022]
Abstract
Angiogenesis, an essential prerequisite to osteogenesis in bone repair and regeneration, can be mediated by immunoregulation of macrophages. Magnesium and its alloys are promising biodegradable bone implant materials and can affect immunoregulation of macrophages by the degradation products (magnesium ions. Nevertheless, the mechanism of macrophage-derived exosomes stimulated by Mg ions in immunoregulation is still not well understood. Herein, 10-50 mM magnesium ions are shown to inhibit the macrophage viability and proliferation in a dose-dependent manner, but a high concentration results in macrophage apoptosis. The exosomes secreted by macrophages from magnesium ion stimulation inhibit angiogenesis of endothelial cells, as manifested by the suppressed cell viability, proliferation, migration, and tube formation, which arise at least partially from exosome-mediated downregulation of endothelial nitric oxide and the vascular endothelial growth factor. The findings reported in this paper suggest that the bio-functionality of biodegradable magnesium alloys must be considered from the perspective of immunoregulation of macrophage-derived exosomes. Our results also suggest potential cancer therapy by inhibiting tumor-associated angiogenesis.
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Affiliation(s)
- Ruiqiang Hang
- Taiyuan University of Technology, No. 79, Yingze West Road, Taiyuan, Shanxi Province, Taiyuan, 030024, CHINA
| | - Xue Tian
- Taiyuan University of Technology, No. 79, Yingze West Road, Taiyuan, Shanxi Province, Taiyuan, 030024, CHINA
| | - Guangping Qu
- Taiyuan University of Technology, No. 79, Yingze West Road, Taiyuan, Shanxi Province, Taiyuan, 030024, CHINA
| | - Yuyu Zhao
- Taiyuan University of Technology, No. 79, Yingze West Road, Taiyuan, Shanxi Province, Taiyuan, 030024, CHINA
| | - Runhua Yao
- Taiyuan University of Technology, No. 79, Yingze West Road, Taiyuan, Shanxi Province, Taiyuan, 030024, CHINA
| | - Yi Zhang
- Taiyuan University of Technology, No. 79, Yingze West Road, Taiyuan, Shanxi Province, Taiyuan, 030024, CHINA
| | - Wenfa Wei
- Taiyuan University of Technology, No. 79, Yingze West Road, Taiyuan, Shanxi Province, Taiyuan, 030024, CHINA
| | - Xiaohong Yao
- Taiyuan University of Technology, No. 79, Yingze West Road, Taiyuan, Shanxi Province, Taiyuan, 030024, CHINA
| | - Paul K Chu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, HONG KONG
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98
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Wu Y, Luo Y, Cuthbert TJ, Shokurov AV, Chu PK, Feng S, Menon C. Hydrogels as Soft Ionic Conductors in Flexible and Wearable Triboelectric Nanogenerators. Adv Sci (Weinh) 2022; 9:e2106008. [PMID: 35187859 PMCID: PMC9009134 DOI: 10.1002/advs.202106008] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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: 12/27/2021] [Revised: 02/07/2022] [Indexed: 05/12/2023]
Abstract
Flexible triboelectric nanogenerators (TENGs) have attracted increasing interest since their advent in 2012. In comparison with other flexible electrodes, hydrogels possess transparency, stretchability, biocompatibility, and tunable ionic conductivity, which together provide great potential as current collectors in TENGs for wearable applications. The development of hydrogel-based TENGs (H-TENGs) is currently a burgeoning field but research efforts have lagged behind those of other common flexible TENGs. In order to spur research and development of this important area, a comprehensive review that summarizes recent advances and challenges of H-TENGs will be very useful to researchers and engineers in this emerging field. Herein, the advantages and types of hydrogels as soft ionic conductors in TENGs are presented, followed by detailed descriptions of the advanced functions, enhanced output performance, as well as flexible and wearable applications of H-TENGs. Finally, the challenges and prospects of H-TENGs are discussed.
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Affiliation(s)
- Yinghong Wu
- Biomedical and Mobile Health Technology LabDepartment of Health Sciences and TechnologyETH ZurichZurich8008Switzerland
| | - Yang Luo
- Department of PhysicsDepartment of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong999077China
| | - Tyler J. Cuthbert
- Biomedical and Mobile Health Technology LabDepartment of Health Sciences and TechnologyETH ZurichZurich8008Switzerland
| | - Alexander V. Shokurov
- Biomedical and Mobile Health Technology LabDepartment of Health Sciences and TechnologyETH ZurichZurich8008Switzerland
| | - Paul K. Chu
- Department of PhysicsDepartment of Materials Science and Engineeringand Department of Biomedical EngineeringCity University of Hong KongHong Kong999077China
| | - Shien‐Ping Feng
- Department of Mechanical EngineeringThe University of Hong KongHong Kong999077China
- Department of Advanced Design and Systems EngineeringCity University of Hong KongKowloonHong Kong999077China
| | - Carlo Menon
- Biomedical and Mobile Health Technology LabDepartment of Health Sciences and TechnologyETH ZurichZurich8008Switzerland
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99
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Dehghan-Baniani D, Mehrjou B, Wang D, Bagheri R, Solouk A, Chu PK, Wu H. A dual functional chondro-inductive chitosan thermogel with high shear modulus and sustained drug release for cartilage tissue engineering. Int J Biol Macromol 2022; 205:638-650. [PMID: 35217083 DOI: 10.1016/j.ijbiomac.2022.02.115] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 02/13/2022] [Accepted: 02/18/2022] [Indexed: 12/17/2022]
Abstract
We report a chitosan-based nanocomposite thermogel with superior shear modulus resembling that of cartilage and dual pro-chondrogenic and anti-inflammatory functions. Two therapeutic agents, kartogenin (KGN) and diclofenac sodium (DS), are employed to promote chondrogenesis of stem cells and suppress inflammation, respectively. To extend the release time in a controlled manner, KGN is encapsulated in the uniform-sized starch microspheres and DS is loaded into the halloysite nanotubes. Both drug carriers are doped into the maleimide-modified chitosan hydrogel to produce a shear modulus of 167 ± 5 kPa that is comparable to that of articular cartilage (50-250 kPa). Owing to the hydrogel injectability and relatively suitable gelation time (5 ± 0.5 min) at 37 °C, this system potentially constitutes a manageable platform for clinical practice. Moreover, sustained linear drug release for over a month boosts chondro-differentiation of stem cells to eliminate the necessity for multiple administrations. Considering virtues such as thermogel strength and ability to co-deliver anti-inflammatory and chondro-inductive biomolecules continuously, the materials and strategy have promising potential in functional cartilage tissue engineering.
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Affiliation(s)
- Dorsa Dehghan-Baniani
- Department of Chemical and Biological Engineering, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; Polymeric Materials Research Group, Department of Materials Science and Engineering, Sharif University of Technology, Tehran, P.O. Box 11155-9466, Iran
| | - Babak Mehrjou
- Department of Physics, Department of Materials Science and Engineering, Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Dong Wang
- Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Reza Bagheri
- Polymeric Materials Research Group, Department of Materials Science and Engineering, Sharif University of Technology, Tehran, P.O. Box 11155-9466, Iran
| | - Atefeh Solouk
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Hongkai Wu
- Department of Chemical and Biological Engineering, Division of Biomedical Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; Department of Chemistry, The Hong Kong University of Science and Technology, Hong Kong, China.
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100
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Duan Z, Wang Y, Bian S, Liu D, Zhang Y, Zhang X, He R, Wang J, Qu G, Chu PK, Yu XF. Size-dependent flame retardancy of black phosphorus nanosheets. Nanoscale 2022; 14:2599-2604. [PMID: 35137736 DOI: 10.1039/d1nr08350c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Two-dimensional black phosphorus (BP) nanosheets are potential flame-retardant nano-additives. Herein, the effects of the size of BP nanosheets embedded in epoxy resin (EP) on flame retardancy are studied. BP nanosheets with four different sizes are synthesized from bulk BP by different exfoliation methods including solid ball milling, liquid ball milling, ultrasonic liquid exfoliation, and electrochemical exfoliation (samples are designated as sb-BP, lb-BP, us-BP, and ec-BP, respectively). lb-BP exhibits the best dispersion in the EP matrix, and the lb-BP/EP composite shows the best flame-retardancy properties among the four BP/EP composites. Compared to bare EP, lb-BP/EP shows obvious improvements including the reduction in the heat release peak rate by 34.4%, total heat release by 27.0%, peak of smoke production rate by 69.2%, and total production of carbon monoxide by 50.8%. The mechanistic study reveals that lb-BP serves as a barrier and carbonization catalyst to delay combustion. These results confirm the size dependence of flame-retardancy properties of BP nanosheets and the new knowledge provides insights into the size dependent effects of other two-dimensional materials.
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Affiliation(s)
- Zunbin Duan
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Yanfang Wang
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
- Heilongjiang Key Laboratory of Molecular Design and Preparation of Flame Retarded Materials, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, China
| | - Shi Bian
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Danni Liu
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Yanli Zhang
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Xue Zhang
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Rui He
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Jiahong Wang
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
| | - Guangbo Qu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Xue-Feng Yu
- Shenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
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