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Wei J, Du C, Li P, Zhou X, Zhou C, Yang S. Molecular-assembly route to fabricate a robust flexible hydrogel membrane for high-efficient and durable solar water purification. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121335] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Lan L, Li F, Li W, Chen R, Xiong Z, He Y, Ouedraogo NAN, Ai B, Tao L, Sun K, Chen S. Highly Skin-Compliant Polymeric Electrodes with Synergistically Boosted Conductivity toward Wearable Health Monitoring. ACS APPLIED MATERIALS & INTERFACES 2022; 14:20113-20121. [PMID: 35467822 DOI: 10.1021/acsami.2c03596] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Despite rapid advances in stretchable electrodes, successful examples of polymeric dry electrodes are limited. Especially in wearable health monitoring, it is urgent to develop biocompatible electrodes that possess intrinsic skin-compliance while maintaining a high conductivity. Herein, a strategy is demonstrated to synergistically regulate the interpenetration behavior and molecular crystallinity in the blend via embedding a novel double network, i.e. physically cross-linked poly(vinyl alcohol) (PVA) and covalently cross-linked polyethylene glycol diacrylate (PEGDA), into the PEDOT:PSS matrix. The favorable interaction energy between PVA and PEGDA enables well-distributed microstructure with finer phase separation in the film, affording a low Young's modulus of 16 MPa with a high conductivity of 442 S/cm. Consequently, the optimal polymeric electrode can acquire high-quality electromyogram (EMG) and electrocardiogram (ECG) signals. Our results provide a feasible approach for producing skin-compliant polymeric electrodes toward next-generation health monitors.
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Affiliation(s)
- Linkai Lan
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Feng Li
- Laboratory of Advanced Materials, Fudan University, 220 Handan, Shanghai 200433, People's Republic of China
| | - Wen Li
- Key Laboratory of Power Transmission Equipment and System Security and New Technology, School of Electrical Engineering and State, Chongqing University, Chongqing 400044, People's Republic of China
| | - Rui Chen
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Zhuang Xiong
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Yongjie He
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Nabonswendé Aïda Nadège Ouedraogo
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Bin Ai
- Chongqing Key Laboratory of Bio perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Luqi Tao
- Key Laboratory of Power Transmission Equipment and System Security and New Technology, School of Electrical Engineering and State, Chongqing University, Chongqing 400044, People's Republic of China
| | - Kuan Sun
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
| | - Shanshan Chen
- MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, People's Republic of China
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Antipova CG, Parunova YM, Vishnevskaya MV, Krasheninnikov SV, Lukanina KI, Grigoriev TE, Chvalun SN, Gotovtsev PM. Biomechanical behaviour of PEDOT:PSS-based hydrogels as an electrode for stent integrated enzyme biofuel cells. Heliyon 2022; 8:e09218. [PMID: 35368535 PMCID: PMC8971615 DOI: 10.1016/j.heliyon.2022.e09218] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 01/31/2022] [Accepted: 03/25/2022] [Indexed: 11/28/2022] Open
Abstract
The possibility of creating a biofuel cell based on a metal stent was shown in this study. Given the existing stent implantation approaches, the integration of a biofuel cell into a stent naturally entails capacity for biofuel cells to be installed into a human body. As a counter electrode, a hydrogel based on iota-carrageenan, polyvinyl alcohol, and PEDOT:PSS, with an immobilized glucose oxidase enzyme, was proposed. Tension tests demonstrated that the hydrogel mechanical behavior resembles that of a bovine's vein. To obtain an analytical description, the deformation curves were fitted using Gent and Ogden models, prompting the fitting parameters which can be useful in further investigations. During cyclic biaxial studies the samples strength was shown to decreases insignificantly in the first 50 cycles and, further, remains stable up to more than 100 cycles. The biofuel cell was designed with the PEDOT:PSS based material as an anode and a Co–Cr self-expanding stent as a cathode. The maximum biofuel cell power density with a glucose concentration of 5 mM was 7.87 × 10−5 W in phosphate buffer and 3.98 × 10−5 W in blood mimicking buffer. Thus, the biofuel cell integration in the self-expanding stent was demonstrated.
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Affiliation(s)
- Christina G Antipova
- National Research Centre "Kurchatov Institute", Department of Nanobiomaterials and Structures, Akademika Kurchatova pl., 1, 123182, Moscow, Russia
| | - Yulia M Parunova
- National Research Centre "Kurchatov Institute", Biotechnology and Bioenergy Department, Akademika Kurchatova pl., 1, 123182, Moscow, Russia
| | - Maria V Vishnevskaya
- National Research Centre "Kurchatov Institute", Biotechnology and Bioenergy Department, Akademika Kurchatova pl., 1, 123182, Moscow, Russia
| | - Sergey V Krasheninnikov
- National Research Centre "Kurchatov Institute", Department of Nanobiomaterials and Structures, Akademika Kurchatova pl., 1, 123182, Moscow, Russia
| | - Ksenia I Lukanina
- National Research Centre "Kurchatov Institute", Department of Nanobiomaterials and Structures, Akademika Kurchatova pl., 1, 123182, Moscow, Russia
| | - Timofei E Grigoriev
- National Research Centre "Kurchatov Institute", Department of Nanobiomaterials and Structures, Akademika Kurchatova pl., 1, 123182, Moscow, Russia.,Moscow Institute of Physics and Technology (National Research University), 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russia
| | - Sergei N Chvalun
- National Research Centre "Kurchatov Institute", Department of Nanobiomaterials and Structures, Akademika Kurchatova pl., 1, 123182, Moscow, Russia
| | - Pavel M Gotovtsev
- National Research Centre "Kurchatov Institute", Biotechnology and Bioenergy Department, Akademika Kurchatova pl., 1, 123182, Moscow, Russia.,Moscow Institute of Physics and Technology (National Research University), 9 Institutskiy per., Dolgoprudny, Moscow Region, 141701, Russia
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Yang S, Zhang X, Zhang D. Electrospun Chitosan/Poly (Vinyl Alcohol)/Graphene Oxide Nanofibrous Membrane with Ciprofloxacin Antibiotic Drug for Potential WoundDressing Application. Int J Mol Sci 2019; 20:E4395. [PMID: 31500190 PMCID: PMC6770121 DOI: 10.3390/ijms20184395] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/04/2019] [Accepted: 09/06/2019] [Indexed: 01/25/2023] Open
Abstract
In this paper, nanofibrous membranes based on chitosan (CS), poly (vinyl alcohol) (PVA) and graphene oxide (GO) composites, loaded with antibiotic drugs, such as Ciprofloxacin (Cip) and Ciprofloxacin hydrochloride (CipHcl) were prepared via the electrospinning technique. The uniform and defect-free CS/PVA nanofibers were obtained and GO nanosheets, shaping spindle and spherical, were partially embedded into nanofibers. Besides, the antibiotic drugs were effectively loaded into the nanofibers and part of which were absorbed into GO nanosheets. Intriguingly, the release of the drug absorbed in GO nanosheets regulated the drug release profile trend, avoiding the "burst" release of drug at the release initial stage, and the addition of GO slightly improved the drug release ratio. Nanofibrous membranes showed the significantly enhanced antibacterial activity against Escherichia coli, Staphylococcus aureus and Bacillus subtilis after the addition of antibiotic drug. Moreover, the drug-loaded nanofibrous membranes exhibited excellent cytocompatibility with Melanoma cells, indicative to the great potential potential for applications in wound dressing.
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Affiliation(s)
- Shuai Yang
- Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
| | - Xiaohong Zhang
- School of Medicine, Ningbo University, Ningbo 315211, China.
| | - Dawei Zhang
- Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
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