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Yang W, Zhou F, Sun N, Wu J, Qi Y, Zhang Y, Song J, Sun Y, Liu Q, Wang X, Mi J, Li M. Constructing a 3D Bi 2WO 6/ZnIn 2S 4 direct Z-scheme heterostructure for improved photocatalytic CO 2 reduction performance. J Colloid Interface Sci 2024; 662:695-706. [PMID: 38368827 DOI: 10.1016/j.jcis.2024.02.119] [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: 10/18/2023] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 02/20/2024]
Abstract
Developing efficient heterojunction photocatalysts with enhanced charge transfer and reduced recombination rates of photogenerated carriers is crucial for harnessing solar energy in the photocatalytic CO2 reduction into renewable fuels. This study employed electrostatic self-assembly techniques to construct a 3D Bi2WO6/ZnIn2S4 direct Z-scheme heterojunctions. The unique 3D structure provided abundant active sites and facilitated CO2 adsorption. Moreover, the optimized Bi2WO6/ZnIn2S4 composite demonstrated an impressive CH4 yield of 19.54 μmol g-1 under 4 h of simulated sunlight irradiation, which was about 8.73 and 16.30-fold higher than pure ZnIn2S4 and Bi2WO6. The observed enhancements in photocatalytic performance are attributed to forming a direct Z-scheme heterojunction, which effectively promotes charge transport and migration. This research introduces a novel strategy for constructing photocatalysts through the synergistic effect of morphological interface modifications.
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Affiliation(s)
- Wu Yang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Fanghe Zhou
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Ningchao Sun
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Jiang Wu
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China.
| | - Yongfeng Qi
- College of Electrical, Energy and Power Engineering, Yangzhou University, Yangzhou 225127, China
| | - Yonglin Zhang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Jingyu Song
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Yijing Sun
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Qizhen Liu
- Shanghai Environmental Monitoring Center, Shanghai 200235, China.
| | - Xudong Wang
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Jianing Mi
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Miao Li
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
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Li X, Yang Y, Tang D, Liu Y, Wang Q. Electrostatic self-assembly endows cellulose paper with durable efficient flame retardancy and mechanical performance improvement. Int J Biol Macromol 2024; 260:129292. [PMID: 38199554 DOI: 10.1016/j.ijbiomac.2024.129292] [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: 11/02/2023] [Revised: 12/08/2023] [Accepted: 01/04/2024] [Indexed: 01/12/2024]
Abstract
Flameproof modification of paper can improve safety and application performance. However, traditional paper is prone to moisture absorption, resulting in significant reduction in flame retardant performance, even complete failure, greatly limiting the application environment. In order to achieve long-term flame retardant properties of paper, while avoiding the loss of physical properties caused by the introduction of flame retardants, in this work, a plant acid/phosphate and melamine formaldehyde coating (PyA/PA-MF) is prepared through electrostatic self-assembly for durable flame retardant performance of cellulose paper. Due to the electrostatic interaction, the paper surface become greatly rough with introduction of PyA/PA-MF, a uniform microsphere structure is formed on the surface of the paper cellulose, which effectively fix the phosphorus-containing groups. The oxygen index reaches 33 % and the carbon length was only 6.3 ± 0.2 cm, the pHRR and THR are decreased by 80 % and 73 %, respectively. After being immersed for 72 h, the oxygen index is still 31.4 % and carbon length is no more than 12 cm. mechanical property of modified paper is significant increased in the tensile strength (2.4 MPa) compared to the blank paper (1 MPa), as well as that the whiteness of the surface of the modified paper will not change. In summary, PyA/PA-MF endows paper long-term flame retardant performance while maintaining its basic performance.
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Affiliation(s)
- Xie Li
- Polymer Research Institute of Sichuan University, the State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
| | - Yuzhao Yang
- Shenzhen Sf Tyson Holding(group) Co., Ltd., Xinghai Avenue, Nanshan Street, Shenzhen-Hong Kong Cooperation Zone, Qianhai, Shenzhen 518000, China
| | - Dongdong Tang
- Polymer Research Institute of Sichuan University, the State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
| | - Yuan Liu
- Polymer Research Institute of Sichuan University, the State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China.
| | - Qi Wang
- Polymer Research Institute of Sichuan University, the State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
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Zheng W, Fan L, Meng Z, Zhou J, Ye D, Xu W, Xu J. Flexible quasi-solid-state supercapacitors for anti-freezing power sources based on polypyrrole@cation-grafted bacterial cellulose. Carbohydr Polym 2024; 324:121502. [PMID: 37985090 DOI: 10.1016/j.carbpol.2023.121502] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/30/2023] [Accepted: 10/14/2023] [Indexed: 11/22/2023]
Abstract
Polypyrrole (PPy)/cellulose nanofiber (CNF) composites have been widely used in flexible energy storage devices because of their lightweight, inherent mechanical flexibility and large specific surface area. However, it is still a challenge to obtain PPy/CNF composite electrodes with high cycling stability. Herein, an electrostatic self-assembly strategy was adopted to deposit anion-doped PPy onto cationic poly(methacryloxyethyltrimethyl ammonium chloride)-grafted bacterial cellulose (BCD) nanofibers. The optimized PPy@BCD electrode demonstrated a high areal capacitance of 6208 mF cm-2 at a current density of 0.5 mA cm-2 and superior cycling stability (a capacitance retention of 100 % after 10,000 charge-discharge cycles at 10 mA cm-2). A quasi-solid-state anti-freezing flexible supercapacitor (AF-FSC) was designed by employing polyacrylamide organohydrogel electrolyte, yielding an areal capacitance of 2930.6 mF cm-2 at 1 mA cm-2 and a capacitance retention of 92.2 % after 1000 cycles at -20 °C. The present AF-FSC is expected to serve as a power source in real-life low-temperature applications.
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Affiliation(s)
- Wenfeng Zheng
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Lingling Fan
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Zhenghua Meng
- Hubei Key Laboratory of Advanced Technology for Automotive Components, Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan University of Technology, 430070 Wuhan, China
| | - Jiangang Zhou
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Dezhan Ye
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China.
| | - Weilin Xu
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Jie Xu
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China.
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Liu H, Xie J, Hu Z, Zhao J, Wang R, Qi Y, Sun S. Self-cleaning and photodegradle PVDF separation membranes modified with self-assembled TiO 2-g-CS/CNTs particle. Carbohydr Polym 2024; 323:121467. [PMID: 37940261 DOI: 10.1016/j.carbpol.2023.121467] [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: 07/18/2023] [Revised: 09/13/2023] [Accepted: 10/06/2023] [Indexed: 11/10/2023]
Abstract
This work obtained separation membranes with UV-cleaning performance by adding TiO2-g-CS/CNTs photocatalyst to the PVDF. The positively charged chitosan (CS) and negatively charged carboxylic carbon nanotube (CNTs-COOH) can be self-assembled into the bilayer structure on the surface of TiO2 particles through electrostatic attraction. The presence of many hydrophilic groups in CS and CNTs-COOH significantly improves the hydrophilicity of TiO2-g-CS/CNTs-PVDF membrane, and helps TiO2 to be uniformly dispersed on the upper surface. TiO2-g-CS/CNTs promote the change of pore structure and expand the flux of the modified membrane to 4.5 times that of pure PVDF. Zeta potential demonstrates that the TiO2-g-CS particles successfully attracted CNTs in the PVDF matrix, and the membrane surface was still positively charged. Thus, the combined effect of the positively charged TiO2-g-CS and the highly adsorbed CNTs enhanced the retention of the contaminants. More importantly, there is a charge transfer between the grafted CS and TiO2 interface to obtain a broader light absorption band. The excitation carriers provided by CNTs significantly contribute to the photocatalytic performance after transfer between TiO2 and CS; thus, TiO2-g-CS/CNTs-PVDF produces higher photocatalytic activity for dye molecules (degradation rate > 97 %).
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Affiliation(s)
- Hongxu Liu
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - Junhao Xie
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - Ziyi Hu
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - Jingxuan Zhao
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - Ruijia Wang
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - Yuchao Qi
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China
| | - Shulin Sun
- School of Chemical Engineering, Changchun University of Technology, Changchun 130012, China; Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, Changchun University of Technology, Changchun 130012, China.
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5
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Zheng W, Fan L, Zhou J, Meng Z, Ye D, Xu J. Flexible, ultrathin and integrated nanopaper supercapacitor based on cationic bacterial cellulose. Int J Biol Macromol 2024; 256:128497. [PMID: 38035966 DOI: 10.1016/j.ijbiomac.2023.128497] [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: 11/14/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/02/2023]
Abstract
Cellulose composite nanopaper is extensively employed in flexible energy storage systems owing to their light weight, good flexibility and high specific surface area. Nevertheless, achieving flexible and ultrathin nanopaper supercapacitors with excellent electrochemical performance remains a challenge. Herein, surface cationization of bacterial cellulose (BC) nanofibers was conducted using 2,3-epoxypropyltrimethylammonium chloride (EPTMAC). Anion-doped polypyrrole (PPy) was incorporated onto the surface of the cationic bacterial cellulose (BCE) nanofibers by an interfacial electrostatic self-assembly process. The obtained PPy@BCE electrode exhibited excellent electrochemical performance, including an areal capacitance of 3988 mF cm-2 at 1.0 mA cm-2 and a capacitance retention of 97 % after 10,000 cycles. A laminated paper-forming strategy was adopted to design and fabricate all-in-one integrated flexible supercapacitors (IFSCs) using PPy@BCE nanopaper as electrodes and BC nanopaper as a separator. The IFSCs showed superior areal capacitance (3669 mF cm-2 at 1 mA cm-2), high energy density (193.7 μWh cm-2 at a power density of 827.3 μW cm-2), and outstanding mechanical flexibility (with no significant capacitance attenuation after repeatedly bending for 1000 times). The present strategy paves a way for the large-scale production of paper-based energy storage devices.
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Affiliation(s)
- Wenfeng Zheng
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Lingling Fan
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China.
| | - Jiangang Zhou
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Zhenghua Meng
- Wuhan University of Technology, School of Automotive Engineering, 430072 Wuhan, China
| | - Dezhan Ye
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Jie Xu
- State Key Lab for Hubei New Textile Materials and Advanced Processing Technology, College of Materials Science & Engineering, College of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China.
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6
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Lin S, Sun S, Li Z. Clay-based 1D-2D halloysite&g-C 3N 4 nanostructured meat floss for photocatalytic hydrogen evolution. Heliyon 2023; 9:e20520. [PMID: 37790955 PMCID: PMC10543221 DOI: 10.1016/j.heliyon.2023.e20520] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/21/2023] [Accepted: 09/27/2023] [Indexed: 10/05/2023] Open
Abstract
Graphitic carbon nitride (g-C3N4) has drawn extensive attention with some features including visible-light response as non-metallic semiconductor, low cost in raw material and green pollution-free for environment, but suffers from some issues such as fast charge carriers' recombination, easy aggregation, etc. In this work, the 1D-2D HNTs&g-C3N4-X binary materials similar to meat floss pattern in a series of halloysite loading amounts are designed via a facile electrostatic self-assembly strategy with debris g-C3N4 after cell pulverizing treatment and HNTs that outwardly modified by cetyltrimethylammonium bromide (CTAB) as the building blocks. The halloysite-mediated satellite-core material displays a photocatalytic of H2 evolution performance with the highest evolution rate of 137.0 μmol g-1 h-1 in visible light condition with no co-catalysts, and is ∼3.4 times that of bulk g-C3N4, mainly benefiting from the reduced nanometer size of debris g-C3N4 and enhanced interface dispersion ability by HNTs, resulting in ameliorative separation efficiency of photogenerated charge carriers. This research conclusively provides the new perspective towards the performance enhancement of water splitting of g-C3N4 in raw clay mineral modification mode and broadens the applications of mineral-based composite in the renewable energy utilization field.
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Affiliation(s)
- Sen Lin
- Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China
- Key Laboratory of Non-metallic Mineral Geology and Utilization in Sichuan Provincial Higher Education Institutions, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China
| | - Shiyong Sun
- Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China
- Key Laboratory of Non-metallic Mineral Geology and Utilization in Sichuan Provincial Higher Education Institutions, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China
| | - Zhengwei Li
- Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China
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Li Q, Nan K, Wang W, Zheng H, Wang Y. Electrostatic self-assembly sandwich-like 2D/2D NiFe-LDH/MXene heterostructure for strong microwave absorption. J Colloid Interface Sci 2023; 648:983-993. [PMID: 37331079 DOI: 10.1016/j.jcis.2023.06.061] [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: 04/18/2023] [Revised: 05/29/2023] [Accepted: 06/09/2023] [Indexed: 06/20/2023]
Abstract
MXene has great application potential in electromagnetic (EM) wave absorbers because of its high attenuation ability; however, self-stacking and excessively high conductivity are major obstacles to its widespread use. To address these issues, a NiFe layered double hydroxide (LDH)/ MXene composite with two-dimensional (2D)/2D sandwich-like heterostructure was constructed through electrostatic self-assembly. The NiFe-LDH not only acts as an intercalator to prevent self-stacking of the MXene nanosheets, but also serves as a low-dielectric choke valve to optimize impedance matching. At a thickness of 2 mm and filler loading of 20 wt%, the minimum reflection loss (RLmin) value could reach -58.2 dB, and the absorption mechanism was analyzed based on multiple reflection, dipole/interfacial polarization, impedance matching, and synergy between dielectric and magnetic losses. Furthermore, the simulation of the radar cross section (RCS) further confirmed the efficient absorption properties and application prospects of the present material. Our work demonstrates that designing sandwich structures based on 2D MXene is an effective way to improve the performance of EM wave absorbers.
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Affiliation(s)
- Qingwei Li
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
| | - Kai Nan
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, China.
| | - Wei Wang
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
| | - Hao Zheng
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
| | - Yan Wang
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
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Li QS, Yang Y, Du YD, Cai L, Ma YH, Yang JH, Li M, Meng QJ, Liu QA, Dong WF. Highly sensitive detection of low-concentration sodium chloride solutions based on polymeric nanofilms coated long period fiber grating. Talanta 2023; 254:124126. [PMID: 36446156 DOI: 10.1016/j.talanta.2022.124126] [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: 08/09/2022] [Revised: 11/13/2022] [Accepted: 11/21/2022] [Indexed: 11/24/2022]
Abstract
Long period fiber gratings (LPFGs) have special advantages in the detection of salt concentrations due to small volume, corrosion resistance and immunity to electromagnetic interference. However, it is very difficult to distinguish low-concentration salt solutions with usual LPFGs owing to the poor sensitivity. In this paper, the detection capability of the LPFG to low-concentration salt solutions was significantly improved by assembling salt-containing poly (diallyldimethylammonium chloride) (PDDA) and salt-containing poly (sodium-p-styrenesulfonate) (PSS). Experimental results showed that, the responsive wavelength range of the LPFG was remarkably broadened in low-concentration salt solutions after assembling nanofilms. The suitable detection range of the PDDA/PSS films coated LPFG for salt concentrations was 0-3%. In such a range, the average refractive index sensitivity and the average salinity sensitivity of the LPFG was as high as 29545.9 nm/RIU and 52.2 nm/% respectively. Compared with the LPFG without nanofilms, the discrimination ability of the PDDA/PSS films coated LPFG to 0-3% salt solutions increased by 568 times. The analysis demonstrated that PDDA and salt in the assembly solutions played a pivotal role in the above effects. The proposed sensor has extensive application prospects in the monitoring of salt concentration in many fields such as seawater, food processing, fermentation process, etc.
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Affiliation(s)
- Qiu-Shun Li
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China.
| | - Yan Yang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China
| | - Yong-Dong Du
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China
| | - Lei Cai
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China
| | - Yao-Hong Ma
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China
| | - Jun-Hui Yang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China
| | - Mingyu Li
- Department of Optical Engineering, School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun, 130022, China
| | - Qing-Jun Meng
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China
| | - Qing-Ai Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250103, China
| | - Wen-Fei Dong
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, 215163, China.
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Sun Y, Yang Y, Fan L, Zheng W, Ye D, Xu J. Polypyrrole/SnCl 2 modified bacterial cellulose electrodes with high areal capacitance for flexible supercapacitors. Carbohydr Polym 2022; 292:119679. [PMID: 35725210 DOI: 10.1016/j.carbpol.2022.119679] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 04/06/2022] [Revised: 05/23/2022] [Accepted: 05/28/2022] [Indexed: 11/24/2022]
Abstract
Polypyrrole (PPy)/bacterial cellulose (BC) composite membranes are a promising kind of lightweight and flexible electrodes for supercapacitors. Herein, we explored a facile and efficient electrostatic self-assembly approach to uniformly depositing anion-doped PPy onto positively charged SnCl2-modifed BC (SBC). The obtained PPy@SBC electrode exhibited a high areal capacitance of 5718 mF cm-2 at a current density of 0.5 mA cm-2, a desirable capacitance retention of 83.1% at 5.0 mA cm-2 and excellent cycling stability (a capacitance retention of 86.8% after 10,000 cycles at 10 mA cm-2). A symmetric flexible supercapacitor was further assembled with the PPy@SBC electrodes, which delivered outstanding mechanical flexibility with negligible capacitance decay under different bent states. This study shows impressive potential in fabricating high-performance electrodes for flexible supercapacitors.
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Affiliation(s)
- Yan Sun
- State Key Lab of New Textile Materials and Advanced Processing Technologies, School of Materials Science & Engineering, School of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Yuan Yang
- State Key Lab of New Textile Materials and Advanced Processing Technologies, School of Materials Science & Engineering, School of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Lingling Fan
- State Key Lab of New Textile Materials and Advanced Processing Technologies, School of Materials Science & Engineering, School of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China.
| | - Wenfeng Zheng
- State Key Lab of New Textile Materials and Advanced Processing Technologies, School of Materials Science & Engineering, School of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Dezhan Ye
- State Key Lab of New Textile Materials and Advanced Processing Technologies, School of Materials Science & Engineering, School of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China
| | - Jie Xu
- State Key Lab of New Textile Materials and Advanced Processing Technologies, School of Materials Science & Engineering, School of Textile Science & Engineering, Wuhan Textile University, 430200 Wuhan, China.
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10
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Luo B, Li X, Liu P, Cui M, Zhou G, Long J, Wang X. Self-assembled NIR-responsive MoS 2@quaternized chitosan/nanocellulose composite paper for recyclable antibacteria. J Hazard Mater 2022; 434:128896. [PMID: 35439698 DOI: 10.1016/j.jhazmat.2022.128896] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/30/2022] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
Paper products are widely used in daily life, while the lack of antibacterial activity has made them become some disease transmission media. Herein, we introduced NIR-responsive molybdenum disulfide nanosheets (MoS2) to endow nanocellulose paper antibacterial activity by electrostatic self-assembly with quaternized chitosan (QCS). Firstly, the MoS2 nanosheets were exfoliated and stabilized with QCS under ultrasonication. The strong coordination between QCS and MoS2 as well as the electrostatic attraction between QCS and cellulose nanofiber (CNF) helped to fabricate the MoS2@QCS/CNF composite paper. The MoS2@QCS/CNF composite paper exhibited excellent photothermal and photodynamic activity, achieving over 99.9% antibacterial efficacy against both E. coli and S. aureus, respectively. The hyperthermia induced by MoS2 accelerated the glutathione (GSH) consumption and the reactive oxygen species (ROS)-independent oxidative stress destroyed the bacteria membranes integrity, synergistically leading to the malondialdehyde (MDA) oxidation and protein leakage to inhibit the bacteria growth. Importantly, the self-assembled fibrous network incorporating with the photo-stable antibacterial MoS2 enabled the flexible composite paper with excellent mechanical strength and recyclability for long-term antimicrobial, possessing over 99.9% inhibition even after five cycles. No cell cytotoxicity was observed for the MoS2@QCS/CNF composite paper, suggesting the potential of composite paper for bacterial infection control.
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Affiliation(s)
- Bichong Luo
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Xiaoyun Li
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Pai Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Meng Cui
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Guangying Zhou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China
| | - Jin Long
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China.
| | - Xiaoying Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China.
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11
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Xu H, Li M, Gong S, Zhao F, Zhao Y, Li C, Qi J, Wang Z, Wang H, Fan X, Peng W, Liu J. Constructing titanium carbide MXene/reduced graphene oxide superlattice heterostructure via electrostatic self-assembly for high-performance capacitive deionization. J Colloid Interface Sci 2022; 624:233-241. [PMID: 35660891 DOI: 10.1016/j.jcis.2022.05.131] [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: 02/15/2022] [Revised: 05/16/2022] [Accepted: 05/22/2022] [Indexed: 12/25/2022]
Abstract
Capacitive deionization has attracted wide concern on accountof its high energy efficiency, low manufacturing cost and environmental friendliness. Nevertheless, the development of capacitive deionization is still impeded because of the scarcity of suitable electrode materials with superior performance. Herein, we successfully prepared the two-dimensional (2D) titanium carbide (Ti3C2Tx) MXene/ reduced graphene oxide (rGO) superlattice heterostructure by a facile electrostatic self-assembly strategy and systematically investigated its performance as capacitive deionized electrode materials. The unique 2D/2D superlattice heterostructure not only effectively alleviates the self-stacking problem of Ti3C2Tx MXene nanosheets, but also endows the heterostructure with superior conductivity and fast ion diffusion rate. As a result, the MXene/rGO superlattice heterostructure exhibits an outstanding salt (Na+) adsorption capacity (48 mg g-1) at 1.2 V significantly superior to pristine Ti3C2Tx MXene nanosheets, along with outstanding long-term cycling performance. Furthermore, the mechanism involved was elucidated through comprehensive characterizations. Therefore, this study offers a new pathway for designing high-performance electrode materials for capacitive deionization.
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Affiliation(s)
- Huiting Xu
- School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| | - Meng Li
- School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| | - Siqi Gong
- School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| | - Fan Zhao
- School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| | - Yang Zhao
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Chunli Li
- School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| | - Junjie Qi
- School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| | - Zhiying Wang
- School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China
| | - Honghai Wang
- School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China.
| | - Xiaobin Fan
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Wenchao Peng
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Jiapeng Liu
- School of Chemical Engineering and Technology, National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Hebei University of Technology, Tianjin 300130, China.
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12
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Bai X, Zhang H, Lin J, Zhang G. Durable silicon-carbon composites self-assembled from double-protected heterostructure for lithium-ion batteries. J Colloid Interface Sci 2022; 615:375-385. [PMID: 35149351 DOI: 10.1016/j.jcis.2022.01.191] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/25/2022] [Accepted: 01/30/2022] [Indexed: 12/17/2022]
Abstract
HYPOTHESIS Silicon-carbon composites have been faced with the contact issues between silicon and carbon in the form of material aggregation and inferior dispersion, leading to electrode cracking or kinetic degradation during cycling. In addition to dispersion improvement from interfacial linkage between self-assembled Si nanoparticles (SiNPs) and carbon fibers (CNFs), the positive influences of high-content carboxymethyl cellulose(CMC) (25 wt%) and amorphous carbon are also expected, respectively after the second-step self-assembly and subsequently sintering. EXPERIMENTS A novel composite (i.e. Si-CNF@C) with the decoration of entire SiNPs in the framework of both CNFs and amorphous carbon was prepared via two-step electrostatic self-assembly followed by sintering. Such a composite with heterogeneous nanostructure was used as a lithium-ion battery anode without additional binders or conductive agents. FINDINGS SiNPs can be well protected with CNFs and amorphous carbon against the dispersion and contact problems under both effects of electrostatic attraction and chemical bonding. With the double-protected heterostructure, such a novel Si-CNF@C electrode exhibits highly reversible capacities of 1200 mAh g-1, 982 mAh g-1, and 849 mAh g-1 after 100, 500, and 1000 cycles at 0.5 A g-1, respectively. The long-term cycling stability with a capacity loss of 0.036% per cycle over 1000 cycles is comparable.
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Affiliation(s)
- Xiao Bai
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology (CAST), Beijing 100094, China; State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing (USTB), Beijing 100083, China
| | - Hui Zhang
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology (CAST), Beijing 100094, China.
| | - Junpin Lin
- State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing (USTB), Beijing 100083, China.
| | - Guang Zhang
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology (CAST), Beijing 100094, China
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Huang X, Jing H, Du X, Wang L, Kou X, Liu Z, Wu S, Wang H. Electrostatically self-assembled filamentous sodium alginate/ε-polylysine fiber with antibacterial, bioadhesion and biocompatible in suturing wound. Int J Biol Macromol 2021; 200:1-11. [PMID: 34968544 DOI: 10.1016/j.ijbiomac.2021.12.133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/25/2021] [Revised: 12/04/2021] [Accepted: 12/20/2021] [Indexed: 01/13/2023]
Abstract
In the work, a novel filamentou sodium alginate (SA) /ε-polylysine (PL) fiber with excellent mechanical properties and controllable sizes is prepared in an efficient and environmentally friendly manner via continuous pulling of an electrostatically assembled SA/PL composites at the contact interface of aqueous solutions of cationic polyelectrolyte ε-PL and anionic natural polysaccharide SA. The SA/PL fiber exhibits good antibacterial activity, low cytotoxicity, anti-hemolysis, bioadhesion, and environmental friendliness due to its natural raw materials and green preparation process. In vivo experiments have shown that the SA/PL fiber can promote the healing and repair of skin wounds on the backs of mice via resistance to pathogen infection, reduction of inflammation, and anti-allogeneic allergy of the wound. In summary, these results demonstrate that the SA/PL fiber is a green and biosafe multifunctional natural polymer material, with potential applications in suturing wound.
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Affiliation(s)
- Xin Huang
- The State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Perfume and Aroma Technology, Shanghai Insititue of Technology, Shanghai 201418, China
| | - Huijuan Jing
- The State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xiaojing Du
- The State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Li Wang
- The State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xingran Kou
- School of Perfume and Aroma Technology, Shanghai Insititue of Technology, Shanghai 201418, China
| | - Zhonghua Liu
- College of Horticulture, Hu'nan Agricultural University, Changsha, Hunan 410128, China
| | - Shijia Wu
- The State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.
| | - Hongxin Wang
- The State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China.
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14
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Li X, Zhang M, Feng J, Bai C, Ren Y. Electrostatic self-assembly to form unique LiNbO 3/ZnS core-shell structure for photocatalytic nitrate reduction enhancement. J Colloid Interface Sci 2021; 607:1323-1332. [PMID: 34583037 DOI: 10.1016/j.jcis.2021.09.069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 06/30/2021] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 12/11/2022]
Abstract
Photocatalytic NO3- reduction in water has been regarded as a promising route due to its high efficiency and green feature. Several limiting factors, such as lack of catalytic sites, insufficient light collection, and spatial charge separation capacity photocatalytic denitrification, still need to be overcome for the practical applications. Herein, an innovative LiNbO3/ZnS heterojunction with a unilateral opening core-shell structure was constructed. ZnS was tightly anchored on the surface of LiNbO3 by modified electrostatic self-assembly method. High nitrate removal rate (98.84%) and N2 selectivity (98.92%) were achieved with a molar ratio of LiNbO3 and ZnS of 1:5 (1:5L-ZS) using formic acid as a hole scavenge. The LiNbO3/ZnS degradation kinetics of NO3- was corresponding to the first-order kinetics equation. The nitrate removal rate and N2 selectivity remained stable after three cycles in such photocatalytic NO3- reduction. The outstanding photocatalyst performance can be ascribed to the improved surface active sites, the well-matched band structure, and the unique core-shell structure. It provides an effective strategy for controllable fabrication of core-shell photocatalyst with strong light-harvesting ability and charge separation efficiency to enhance the removal rate of nitrate in water.
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Affiliation(s)
- Xiao Li
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Mingyi Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China
| | - Jing Feng
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Chengying Bai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.
| | - Yueming Ren
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China.
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15
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Bai X, Zhang H, Lin J, Zhang G. UV-ozone contributions towards facile self-assembly and high performance of silicon-carbon fiber materials as lithium-ion battery anodes. J Colloid Interface Sci 2021; 598:339-347. [PMID: 33901857 DOI: 10.1016/j.jcis.2021.04.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/07/2021] [Accepted: 04/11/2021] [Indexed: 11/30/2022]
Abstract
Si-carbon composites have been considered as next generation lithium-ion battery anodes, with a view to sufficiently exerting the respective superiorities of high specific capacity of Si as well as excellent mechanical flexibility and electrical conductivity of carbon. However, direct blending of carbon with Si cannot obtain a synergy composite, resulting in inferior cycle properties during charge-discharge due to huge volume changes and deficient electron-conducting channels from the unavoidably aggregated Si. Herein, the composition of carbon fibers (CNFs) with Si nanoparticles (SiNPs) has been performed through UV-ozone surface modification followed by electrostatic self-assembly. It is found that solvent-free UV-ozone exposure of CNFs for 20 min successfully introduces carboxylic groups, as conventional acid treatment for 12 h. Besides UV-ozone surface modification provides an efficient and scalable route, the distribution and functionalization of CNFs can be also modified to effectively combine with amino-functionalized SiNPs. As a result, such Si-CNF composites containing 70.0 wt% SiNPs are able to exhibit excellent cycle performance with high coulombic efficiency of 74.8% at the 1st cycle and high specific discharge capacity of 1063 mAh g-1 at the 400th cycle.
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Affiliation(s)
- Xiao Bai
- State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China; Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China
| | - Hui Zhang
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China.
| | - Junpin Lin
- State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China.
| | - Guang Zhang
- Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China
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16
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Zeng Z, Hu C, Liang Q, Tang L, Cheng D, Ruan C. Coaxial-printed small-diameter polyelectrolyte-based tubes with an electrostatic self-assembly of heparin and YIGSR peptide for antithrombogenicity and endothelialization. Bioact Mater 2021; 6:1628-1638. [PMID: 33313443 PMCID: PMC7701915 DOI: 10.1016/j.bioactmat.2020.10.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 11/27/2022] Open
Abstract
Low patency ratio of small-diameter vascular grafts remains a major challenge due to the occurrence of thrombosis formation and intimal hyperplasia after transplantation. Although developing the functional coating with release of bioactive molecules on the surface of small-diameter vascular grafts are reported as an effective strategy to improve their patency ratios, it is still difficult for current functional coatings cooperating with spatiotemporal control of bioactive molecules release to mimic the sequential requirements for antithrombogenicity and endothelialization. Herein, on basis of 3D-printed polyelectrolyte-based vascular grafts, a biologically inspired release system with sequential release in spatiotemporal coordination of dual molecules through an electrostatic self-assembly was first described. A series of tubes with tunable diameters were initially fabricated by a coaxial extrusion printing method with customized nozzles, in which a polyelectrolyte ink containing of ε-polylysine and sodium alginate was used. Further, dual bioactive molecules, heparin with negative charges and Tyr-Ile-Gly-Ser-Arg (YIGSR) peptide with positive charges were layer-by-layer assembled onto the surface of these 3D-printed tubes. Due to the electrostatic interaction, the sequential release of heparin and YIGSR was demonstrated and could construct a dynamic microenvironment that was thus conducive to the antithrombogenicity and endothelialization. This study opens a new avenue to fabricate a small-diameter vascular graft with a biologically inspired release system based on electrostatic interaction, revealing a huge potential for development of small-diameter artificial vascular grafts with good patency.
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Affiliation(s)
- Zhiwen Zeng
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, PR China
| | - Chengshen Hu
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Qingfei Liang
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Lan Tang
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Delin Cheng
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Changshun Ruan
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, PR China
- University of Chinese Academy of Sciences, Beijing, 100049, PR China
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17
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Zhu P, Kuang Y, Wei Y, Li F, Ou H, Jiang F, Chen G. Electrostatic self-assembly enabled flexible paper-based humidity sensor with high sensitivity and superior durability. Chem Eng J 2021; 404:127105. [PMID: 32994751 PMCID: PMC7513892 DOI: 10.1016/j.cej.2020.127105] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 08/04/2020] [Accepted: 09/20/2020] [Indexed: 05/07/2023]
Abstract
Humidity sensors have been widely used for humidity monitoring in industrial fields. However, the application of conventional sensors is limited due to the structural rigidity, high cost, and time-consuming integration process. Owing to the good hydrophilicity, biodegradability, and low cost of cellulose, the sensors built on cellulose bulk materials are considered a feasible method to overcome these drawbacks while providing reasonable performance. Herein, we design a flexible paper-based humidity sensor based on conductive 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose fibers/carbon nanotubes (TOCFs/CNTs) conformal fibers network. The CNTs are dispersed by cationic cetyl trimethyl ammonium bromide (CTAB), which introduces positive charges on the CNTs surface. The conductive fibers are achieved by an electrostatic self-assembly process that positively charged CNTs are adsorbed to the surface of negatively charged TOCFs. The vast number of hydrophilic hydroxyl groups on the surface of TOCFs provide more water molecules adsorption sites and facilitate the electron transfer from water molecules to CNTs, endowing the sensor with an excellent humidity responsive property. Besides, the swelling of the TOCFs greatly damages the conductive CNTs network and further promotes the humidity sensitive performance of the sensor. Benefiting from the unique structure, the obtained sensor exhibits a maximum response value of 87.0% (ΔI/I0 , and the response limit is 100%), outstanding linearity (R2 = 0.995) between 11 and 95% relative humidity (RH), superior bending (with a curvature of 2.1 cm-1) and folding (up to 50 times) durability, and good long-time stability (more than 3 months). Finally, as a proof of concept, the sensor demonstrates an excellent responsive property to human breath, fingertip humidity, and the change of air humidity, indicating a great potential towards practical applications.
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Affiliation(s)
- Penghui Zhu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Engineering Technology Research and Development Center of Specialty Paper and Paper-Based Functional Materials, South China University of Technology, Guangzhou 510640, China
- Sustainable Functional Biomaterials Lab, Department of Wood Science, University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Yudi Kuang
- School of Biomedical Science and Engineering, South China University of Technology, Guangzhou 510006, China
- National Engineering Research Center for Tissue Restoration and Reconstruction (NERC-TRR), Guangzhou 510006, China
- Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, China
| | - Yuan Wei
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Engineering Technology Research and Development Center of Specialty Paper and Paper-Based Functional Materials, South China University of Technology, Guangzhou 510640, China
| | - Fang Li
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Engineering Technology Research and Development Center of Specialty Paper and Paper-Based Functional Materials, South China University of Technology, Guangzhou 510640, China
| | - Huajie Ou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Engineering Technology Research and Development Center of Specialty Paper and Paper-Based Functional Materials, South China University of Technology, Guangzhou 510640, China
| | - Feng Jiang
- Sustainable Functional Biomaterials Lab, Department of Wood Science, University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Gang Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Engineering Technology Research and Development Center of Specialty Paper and Paper-Based Functional Materials, South China University of Technology, Guangzhou 510640, China
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Zhang P, Wang D, Zhu Q, Sun N, Fu F, Xu B. Plate-to-Layer Bi 2MoO 6/MXene-Heterostructured Anode for Lithium-Ion Batteries. Nanomicro Lett 2019; 11:81. [PMID: 34138047 PMCID: PMC7770671 DOI: 10.1007/s40820-019-0312-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 09/01/2019] [Indexed: 05/26/2023]
Abstract
Bi2MoO6 is a potentially promising anode material for lithium-ion batteries (LIBs) on account of its high theoretical capacity coupled with low desertion potential. Due to low conductivity and large volume expansion/contraction during charge/discharge cycling of Bi2MoO6, effective modification is indispensable to address these issues. In this study, a plate-to-layer Bi2MoO6/Ti3C2Tx (MXene) heterostructure is proposed by electrostatic assembling positive-charged Bi2MoO6 nanoplates on negative-charged MXene nanosheets. MXene nanosheets in the heterostructure act as a highly conductive substrate to load and anchor the Bi2MoO6 nanoplates, so as to improve electronic conductivity and structural stability. When the mass ratio of MXene is optimized to 30%, the Bi2MoO6/MXene heterostructure exhibits high specific capacities of 692 mAh g-1 at 100 mA g-1 after 200 cycles and 545.1 mAh g-1 with 99.6% coulombic efficiency at 1 A g-1 after 1000 cycles. The results provide not only a high-performance lithium storage material, but also an effective strategy that could address the intrinsic issues of various transition metal oxides by anchoring them on MXene nanosheets to form heterostructures and use as anode materials for LIBs.
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Affiliation(s)
- Peng Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Danjun Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
- Shaanxi Key Laboratory of Chemical Reaction Engineering, School of Chemistry and Chemical Engineering, Yan'an University, Yan'an, 716000, People's Republic of China
| | - Qizhen Zhu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
| | - Ning Sun
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Feng Fu
- Shaanxi Key Laboratory of Chemical Reaction Engineering, School of Chemistry and Chemical Engineering, Yan'an University, Yan'an, 716000, People's Republic of China.
| | - Bin Xu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China.
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Yuan J, Guo L, Wang S, Liu D, Qin X, Zheng L, Tian C, Han X, Chen R, Yin R. Preparation of self-assembled nanoparticles of ε-polylysine-sodium alginate: A sustained-release carrier for antigen delivery. Colloids Surf B Biointerfaces 2018; 171:406-412. [PMID: 30071482 DOI: 10.1016/j.colsurfb.2018.07.058] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [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: 04/20/2018] [Revised: 07/16/2018] [Accepted: 07/24/2018] [Indexed: 01/10/2023]
Abstract
Low immunogenicity prohibits the widespread use of subunit vaccine against infectious diseases and cancers. Hence, a new generation of adjuvants and delivery systems is indispensable for more potent antigen-specific immune responses. Predominantly, nanoparticles formulated from biodegradable polymers are being widely explored as carriers of novel vaccines owing to their outstanding natural properties. We fabricated a model antigen - bovine serum albumin (BSA) encapsulated ε-polylysine (ε-PL) - sodium alginate (SA) nanoparticles (PSNPs), which were self-assembled by ionotropic complexation method, a very simple and mild process, as a result of the electrostatic interaction between oppositely charged polyelectrolyte complexes (PEC). After the preparation, various in vitro parameters were characterized. Scanning electron microscope and dynamic light scattering were employed to study the morphology, size, zeta potential and optimize formulation. Forming mechanism of PSNPS was analyzed and verified by infrared absorption spectra and thermal analysis. Delivery behavior of PSNPs was assessed via release study, cytotoxicity measurement and cellular uptake. BSA-PSNPs with a mean particle diameter 133.2 ± 0.5 nm, narrow size distribution and negatively charged surface had been synthesized successfully by this method. The results of in vitro studies demonstrated that the nanosuspension was able to prevent burst release of loaded BSA and presented sustained-release behavior. It was no cytotoxicity by the bio-assessment using macrophage cells, and was observed significantly higher uptake compared with BSA free solution. Herein, ε-polylysine - sodium alginate nanoparticles had been found to be a potential candidate for vaccine delivery.
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Affiliation(s)
- Jing Yuan
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Lu Guo
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Sijia Wang
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Dan Liu
- Department of Pharmacy, The Fourth Affiliated Hospital of China Medical University, Shenyang, 110032, PR China
| | - Xia Qin
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Lili Zheng
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Chunlian Tian
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Xiaohu Han
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Ran Chen
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Ronghuan Yin
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China.
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Xu T, Chi B, Chu M, Zhang Q, Zhan S, Shi R, Xu H, Mao C. Hemocompatible ɛ-polylysine-heparin microparticles: A platform for detecting triglycerides in whole blood. Biosens Bioelectron 2017; 99:571-577. [PMID: 28826001 DOI: 10.1016/j.bios.2017.08.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 02/15/2017] [Revised: 07/19/2017] [Accepted: 08/12/2017] [Indexed: 01/06/2023]
Abstract
Triglycerides are clinically important marker for atherosclerosis, heart disease and hypertension. Here, a platform for detecting triglycerides in whole blood directly was developed based on hemocompatible ɛ-polylysine-heparin microparticles. The obtained products of ɛ-polylysine-heparin microparticles were characterized by fourier transform infrared (FT-IR) spectra, transmission electron microscopy (TEM) and ζ-potential. Moreover, the blood compatibility of ɛ-polylysine-heparin microparticles was characterized by in vitro coagulation tests, hemolysis assay and whole blood adhesion tests. Considering of uniform particle size, good dispersibility and moderate long-term anticoagulation capability of the microparticles, a Lipase-(ɛ-polylysine-heparin)-glassy carbon electrode (GCE) was constructed to detect triglycerides. The proposed biosensor had good electrocatalytic activity towards triglycerides, in which case the sensitivity was 0.40μAmg-1dLcm-2 and the detection limit was 4.67mgdL-1 (S/N = 3). Meanwhile, the Lipase-(ɛ-polylysine-heparin)-GCE electrode had strong anti-interference ability as well as a long shelf-life. Moreover, for the detection of triglycerides in whole blood directly, the detection limit was as low as 5.18mgdL-1. The new constructed platform is suitable for detecting triglycerides in whole blood directly, which provides new analytical systems for clinical illness diagnosis.
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Affiliation(s)
- Tingting Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China; National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Bo Chi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Meilin Chu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Qicheng Zhang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shuyue Zhan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Rongjia Shi
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Hong Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China.
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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Xu T, Chi B, Wu F, Ma S, Zhan S, Yi M, Xu H, Mao C. A sensitive label-free immunosensor for detection α-Fetoprotein in whole blood based on anticoagulating magnetic nanoparticles. Biosens Bioelectron 2017; 95:87-93. [PMID: 28419916 DOI: 10.1016/j.bios.2017.04.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [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: 01/14/2017] [Revised: 03/22/2017] [Accepted: 04/12/2017] [Indexed: 12/25/2022]
Abstract
Accurate values of tumor markers in blood play an especially important role in the diagnosis of illness. Here, based on the combination of three techniques include anticoagulant technology, nanotechnology and biosensing technology, a sensitive label-free immunosensor with anti-biofouling electrode for detection α-Fetoprotein (AFP) in whole blood was developed by anticoagulating magnetic nanoparticles. The obtained products of Fe3O4-ɛ-PL-Hep nanoparticles were characterized by fourier transform infrared (FT-IR) spectra, transmission electron microscopy (TEM), ζ-potential and vibrating sample magnetometry (VSM). Moreover, the blood compatibility of anticoagulating magnetic nanoparticles was characterized by in vitro coagulation tests, hemolysis assay and whole blood adhesion tests. Combining the anticoagulant property of heparin (Hep) and the good magnetism of Fe3O4, the Fe3O4-ɛ-PL-Hep nanoparticles could improve not only the anti-biofouling property of the electrode surface when they contact with whole blood, but also the stability and reproducibility of the proposed immunosensor. Thus, the prepared anticoagulating magnetic nanoparticles modified immunosensor for the detection of AFP showed excellent electrochemical properties with a wide concentration range from 0.1 to 100ng/mL and a low detection limit of 0.072ng/mL. Furthermore, five blood samples were assayed using the developed immunosensor. The results showed satisfactory accuracy with low relative errors. It indicated that our developed immunoassay was competitive and could be potentially used for the detection of whole blood samples directly.
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Affiliation(s)
- Tingting Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China; National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Bo Chi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Fan Wu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shangshang Ma
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shuyue Zhan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Meihui Yi
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Hong Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China.
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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Flexer V, Pratt K, Garay F, Bartlett P, Calvo E. Relaxation and Simplex mathematical algorithms applied to the study of steady-state electrochemical responses of immobilized enzyme biosensors: Comparison with experiments. J Electroanal Chem (Lausanne) 2008; 616:87-98. [PMID: 25567786 PMCID: PMC4282156 DOI: 10.1016/j.jelechem.2008.01.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2007] [Revised: 01/07/2008] [Accepted: 01/11/2008] [Indexed: 11/16/2022]
Abstract
A description of the implementation of the relaxation method with automatic mesh point allocation for immobilized enzyme electrodes is presented. The advantages of this method for the solution of coupled reaction-diffusion problems are discussed. The relaxation numerical simulation technique is combined with the Simplex fitting algorithm to extract kinetic parameters from experimental data. The results of the simulations are compared to experimental data from self-assembled multilayered electrodes comprised of glucose oxidase (GOx) and an Os modified redox mediator and found to be in excellent agreement.
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Affiliation(s)
- V. Flexer
- INQUIMAE, Departamento de Quimica Inorganica, Analitica y Quimica Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - K.F.E. Pratt
- City Technology Ltd., Walton Road, Portsmouth, Hants PO6 1SZ, UK
| | - F. Garay
- INFIQC, Departamento de Fisicoquímica, Facultad de Ciencias Químicas, UNC, Pab. Argentina 2° piso, Ciudad Universitaria, Córdoba 5000, Argentina
| | - P.N. Bartlett
- School of Chemistry, University of Southampton, Southampton, Hants SO17 1BJ, UK
| | - E.J. Calvo
- INQUIMAE, Departamento de Quimica Inorganica, Analitica y Quimica Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
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