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Wang Z, Zou X, Liu T, Zhu Y, Wu D, Bai Y, Du G, Luo B, Zhang S, Chi M, Liu Y, Shao Y, Wang J, Wang S, Nie S. Directional Moisture-Wicking Triboelectric Materials Enabled by Laplace Pressure Differences. NANO LETTERS 2024; 24:7125-7133. [PMID: 38808683 DOI: 10.1021/acs.nanolett.4c01962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Wearable sensors are experiencing vibrant growth in the fields of health monitoring systems and human motion detection, with comfort becoming a significant research direction for wearable sensing devices. However, the weak moisture-wicking capability of sensor materials leads to liquid retention, severely restricting the comfort of the wearable sensors. This study employs a pattern-guided alignment strategy to construct microhill arrays, endowing triboelectric materials with directional moisture-wicking capability. Within 2.25 s, triboelectric materials can quickly and directionally remove the droplets, driven by the Laplace pressure differences and the wettability gradient. The directional moisture-wicking triboelectric materials exhibit excellent pressure sensing performance, enabling rapid response/recovery (29.1/37.0 ms), thereby achieving real-time online monitoring of human respiration and movement states. This work addresses the long-standing challenge of insufficient moisture-wicking driving force in flexible electronic sensing materials, holding significant implications for enhancing the comfort and application potential of electronic skin and wearable electronic devices.
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Affiliation(s)
- Zhiwei Wang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Xuelian Zou
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Tao Liu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yunpeng Zhu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Di Wu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yayu Bai
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Guoli Du
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Bin Luo
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Song Zhang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Mingchao Chi
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yanhua Liu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Yuzheng Shao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Jinlong Wang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Shuangfei Wang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Shuangxi Nie
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
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Zhu L, Jiang R, Chen C. Fabrication of a Janus Copper Mesh by SiO 2 Spraying for Unidirectional Water Transportation and Oil/Water Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8694-8702. [PMID: 38587567 DOI: 10.1021/acs.langmuir.4c00569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Massive discharge of oily wastewater and frequent occurrence of offshore oil spills have posed an enormous threat to the socioeconomic and ecological environments. Janus membranes with asymmetric wettability properties have great potential for oil/water separation applications and have attracted widespread attention. However, existing Janus membranes still suffer from complex and costly manufacturing processes, low permeability, and poor recyclability. Herein, a novel and facile strategy was proposed to fabricate a Janus copper mesh with opposite wettability for unidirectional water transport and efficient oil/water separation. The hydrophilic side of the Janus copper mesh was prepared by coating it with Cu(OH)2 nanoneedles via a chemical oxidation method. The hydrophobic side was fabricated by coating it with hydrophobic SiO2 nanoparticles via a facile spraying method. The as-prepared Janus copper mesh showed asymmetric surface wettability, which can achieve unidirectional water transport and efficient oil/water separation with excellent recyclability, exhibiting great application potential for droplet manipulation and wastewater purification.
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Affiliation(s)
- Linfeng Zhu
- School of Mechanical Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Ruisong Jiang
- School of Mechanical Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
| | - Chaolang Chen
- School of Mechanical Engineering, Sichuan University, Chengdu, Sichuan 610065, People's Republic of China
- National United Engineering Laboratory for Advanced Bearing Tribology, Henan University of Science and Technology, Luoyang, Henan 471023, People's Republic of China
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Zheng Q, Xi Y, Weng Y. Functional electrospun nanofibers: fabrication, properties, and applications in wound-healing process. RSC Adv 2024; 14:3359-3378. [PMID: 38259986 PMCID: PMC10801448 DOI: 10.1039/d3ra07075a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024] Open
Abstract
Electrostatic spinning as a technique for producing nanoscale fibers has recently attracted increasing attention due to its simplicity, versatility, and loadability. Nanofibers prepared by electrostatic spinning have been widely studied, especially in biomedical applications, because of their high specific surface area, high porosity, easy size control, and easy surface functionalization. Wound healing is a highly complex and dynamic process that is a crucial step in the body's healing process to recover from tissue injury or other forms of damage. Single-component nanofibers are more or less limited in terms of structural properties and do not fully satisfy various needs of the materials. This review aims to provide an in-depth analysis of the literature on the use of electrostatically spun nanofibers to promote wound healing, to overview the infinite possibilities for researchers to tap into their biomedical applications through functional composite modification of nanofibers for advanced and multifunctional materials, and to propose directions and perspectives for future research.
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Affiliation(s)
- Qianlan Zheng
- College of Light Industry Science and Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Yuewei Xi
- College of Light Industry Science and Engineering, Beijing Technology and Business University Beijing 100048 China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University Beijing 100048 China
| | - Yunxuan Weng
- College of Light Industry Science and Engineering, Beijing Technology and Business University Beijing 100048 China
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University Beijing 100048 China
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Shi D, Gong T, Wang R, Qing W, Shao S. Control the hydrophilic layer thickness of Janus membranes by manipulating membrane wetting in membrane distillation. WATER RESEARCH 2023; 237:119984. [PMID: 37099871 DOI: 10.1016/j.watres.2023.119984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 04/07/2023] [Accepted: 04/18/2023] [Indexed: 05/09/2023]
Abstract
Janus membranes with asymmetric wettability have attracted wide attentions for their robust anti-oil-wetting/fouling abilities in membrane distillation (MD). Compared to traditional surface modification approaches, in this study, we provided a new approach which manipulated surfactant-induced wetting to fabricate Janus membrane with a controllable thickness of the hydrophilic layer. The membranes with 10, 20, and 40 μm of wetted layers were obtained by stopping the wetting induced by 40 mg L-1 Triton X-100 (J = 25 L m-2 h-1) at about 15, 40, and 120 s, respectively. Then, the wetted layers were coated using polydopamine (PDA) to fabricate the Janus membranes. The resulting Janus membranes showed no significant change in porosities or pore size distributions compared with the virgin PVDF membrane. These Janus membranes exhibited low in-air water contact angles (< 50°), high underwater oil contact angles (> 145°), and low adhesion with oil droplets. Therefore, they all showed excellent oil-water separation performance with ∼100% rejection and stable flux. The Janus membranes showed no significant decline in flux, but a trade-off existed between the hydrophilic layer thicknesses and the vapor flux. Utilizing membranes with tunable hydrophilic layer thickness, we elucidated the underlying mechanism of such trade-off in mass transfer. Furthermore, the successful modification of membranes with different coatings and in-situ immobilization of silver nanoparticles indicated that this facile modification method is universal and can be further expanded for multifunctional membrane fabrication.
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Affiliation(s)
- Danting Shi
- School of Civil Engineering, Wuhan University, Wuhan, PR China
| | - Tengjing Gong
- School of Civil Engineering, Wuhan University, Wuhan, PR China
| | - Rui Wang
- Faculty of Resources and Environmental Science, Hubei University, Wuhan, PR China
| | - Weihua Qing
- Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, USA
| | - Senlin Shao
- School of Civil Engineering, Wuhan University, Wuhan, PR China.
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Kandiyil J, Vasudevan S, Athiyanathil S. Efficient selective methylene blue adsorption by polyurethane/montmorillonite‐based antifouling electrospun composite membranes. J Appl Polym Sci 2022. [DOI: 10.1002/app.53464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Juraij Kandiyil
- Department of Chemistry, Materials Research Laboratory National Institute of Technology Calicut Kozhikode India
| | - Suni Vasudevan
- Department of Chemistry, Inorganic and Bio‐inorganic Laboratory National Institute of Technology Calicut Kozhikode India
| | - Sujith Athiyanathil
- Department of Chemistry, Materials Research Laboratory National Institute of Technology Calicut Kozhikode India
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Rao Y, Feng S, Low ZX, Wu J, Ju S, Zhong Z, Xing W. Biocompatible curcumin coupled nanofibrous membrane for pathogens sterilization and isolation. J Memb Sci 2022; 661:120885. [PMID: 35966152 PMCID: PMC9364930 DOI: 10.1016/j.memsci.2022.120885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/19/2022] [Accepted: 07/29/2022] [Indexed: 11/26/2022]
Abstract
Airborne transmission of pathogens is the most probable cause for the spread of respiratory diseases, which can be intercepted by personal protective equipment such as masks. In this study, an efficient antiviral personal protective filter was fabricated by coupling the biocompatible curcumin (CCM) with nanofibrous polytetrafluoroethylene (PTFE) membrane. The CCM extracted from plants was first dissolved in acidified ethanol at a certain pH and temperature to optimize its loading concentration, antiviral activation, and binding forces on the polyethylene terephthalate (PET) support to form a pre-filtration layer at the front section of the filter. Ultrathin PTFE membrane was then fabricated on the antibacterial-antiviral PET support (A-A PET) by controllable heating lamination. This functional layer of the filter exhibits good gas permeance (3423.6 m3/(m2·h·kPa)) and ultrafine particles rejection rate (>98.79%). Moreover, the obtained A-A filter exhibit a high antibacterial rate against a variety of bacteria (E. coli, B. subtilis, A. niger, and Penicillium were 99.84%, 99.02%, 93.60%, 95.23%, respectively). Forthwith virucidal (SARS-CoV-2) efficiency of the A-A filter can reach 99.90% for 5 min. The filter shows good stability after 10 heating cycles, demonstrating its reusability.
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Affiliation(s)
- Yuanyuan Rao
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
| | - Shasha Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
| | - Ze-Xian Low
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China.,Department of Chemical and Biological Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - Junwei Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China.,Jiangsu Jiulang High-Tech Co., Ltd, Nanjing, 210009, China
| | - Shengui Ju
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
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Chen J, Rao Y, Zhu X, Wang J, Tang X, Feng S, Zhang F, Zhong Z, Xing W. Electrospun nanofibrous membranes with asymmetric wettability for unidirectional moisture transport, efficient PM capture and bacteria inhibition. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yang Y, Guo Z, Li Y, Qing Y, Dansawad P, Wu H, Liang J, Li W. Electrospun rough PVDF nanofibrous membranes via introducing fluorinated SiO2 for efficient oil-water emulsions coalescence separation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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