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Xiao F, Jin S, Zhang W, Zhang Y, Zhou H, Huang Y. Wearable Pressure Sensor Using Porous Natural Polymer Hydrogel Elastomers with High Sensitivity over a Wide Sensing Range. Polymers (Basel) 2023; 15:2736. [PMID: 37376381 DOI: 10.3390/polym15122736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Wearable pressure sensors capable of quantifying full-range human dynamic motionare are pivotal in wearable electronics and human activity monitoring. Since wearable pressure sensors directly or indirectly contact skin, selecting flexible soft and skin-friendly materials is important. Wearable pressure sensors with natural polymer-based hydrogels are extensively explored to enable safe contact with skin. Despite recent advances, most natural polymer-based hydrogel sensors suffer from low sensitivity at high-pressure ranges. Here, by using commercially available rosin particles as sacrificial templates, a cost-effective wide-range porous locust bean gum-based hydrogel pressure sensor is constructed. Due to the three-dimensional macroporous structure of the hydrogel, the constructed sensor exhibits high sensitivities (12.7, 5.0, and 3.2 kPa-1 under 0.1-20, 20-50, and 50-100 kPa) under a wide range of pressure. The sensor also offers a fast response time (263 ms) and good durability over 500 loading/unloading cycles. In addition, the sensor is successfully applied for monitoring human dynamic motion. This work provides a low-cost and easy fabrication strategy for fabricating high-performance natural polymer-based hydrogel piezoresistive sensors with a wide response range and high sensitivity.
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Affiliation(s)
- Fan Xiao
- School of Microelectronics Science and Technology, Sun Yat-Sen University, Guangzhou 510275, China
| | - Shunyu Jin
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Wan Zhang
- School of Microelectronics Science and Technology, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yingxin Zhang
- School of Microelectronics Science and Technology, Sun Yat-Sen University, Guangzhou 510275, China
| | - Hang Zhou
- School of Electronic and Computer Engineering, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yuan Huang
- School of Microelectronics Science and Technology, Sun Yat-Sen University, Guangzhou 510275, China
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Oaki Y, Sato K. Nanoarchitectonics for conductive polymers using solid and vapor phases. NANOSCALE ADVANCES 2022; 4:2773-2781. [PMID: 36132001 PMCID: PMC9418446 DOI: 10.1039/d2na00203e] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/21/2022] [Indexed: 05/03/2023]
Abstract
Conductive polymers have been extensively studied as functional organic materials due to their broad range of applications. Conductive polymers, such as polypyrrole, polythiophene, and their derivatives, are typically obtained as coatings and precipitates in the solution phase. Nanoarchitectonics for conductive polymers requires new methods including syntheses and morphology control. For example, nanoarchitectonics is achieved by liquid-phase syntheses with the assistance of templates, such as macromolecules and porous materials. This minireview summarizes the other new synthetic methods using the solid and vapor phases for nanoarchitectonics. In general, the monomers and related species are supplied from the solution phase. Our group has studied polymerization of heteroaromatic monomers using the solid and vapor phases. The surface and inside of solid crystals were used for the polymerization with the diffusion of the heteroaromatic monomer vapor. Our nanoarchitectonics affords to form homogeneous coatings, hierarchical structures, composites, and copolymers for energy-related applications. The concepts using solid and vapor phases can be applied to nanoarchitectonics for not only conductive polymers but also other polymers toward a variety of applications.
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Affiliation(s)
- Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kosuke Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
- Organic Materials Chemistry Group, Sagami Chemical Research Institute 2743-1 Hayakawa Ayase Kanagawa 252-1193 Japan
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Zeng Q, Lai D, Ma P, Lai X, Zeng X, Li H. Fabrication of conductive and superhydrophobic poly(lactic acid) nonwoven fabric for human motion detection. J Appl Polym Sci 2022. [DOI: 10.1002/app.52453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qingtao Zeng
- School of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials South China University of Technology Guangzhou China
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education Jiangnan University Wuxi China
| | - Dehui Lai
- School of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials South China University of Technology Guangzhou China
| | - Piming Ma
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education Jiangnan University Wuxi China
| | - Xuejun Lai
- School of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials South China University of Technology Guangzhou China
| | - Xingrong Zeng
- School of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials South China University of Technology Guangzhou China
| | - Hongqiang Li
- School of Materials Science and Engineering, Key Lab of Guangdong Province for High Property and Functional Polymer Materials South China University of Technology Guangzhou China
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Liu W, Liu K, Du H, Zheng T, Zhang N, Xu T, Pang B, Zhang X, Si C, Zhang K. Cellulose Nanopaper: Fabrication, Functionalization, and Applications. NANO-MICRO LETTERS 2022; 14:104. [PMID: 35416525 PMCID: PMC9008119 DOI: 10.1007/s40820-022-00849-x] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/22/2022] [Indexed: 05/07/2023]
Abstract
Cellulose nanopaper has shown great potential in diverse fields including optoelectronic devices, food packaging, biomedical application, and so forth, owing to their various advantages such as good flexibility, tunable light transmittance, high thermal stability, low thermal expansion coefficient, and superior mechanical properties. Herein, recent progress on the fabrication and applications of cellulose nanopaper is summarized and discussed based on the analyses of the latest studies. We begin with a brief introduction of the three types of nanocellulose: cellulose nanocrystals, cellulose nanofibrils and bacterial cellulose, recapitulating their differences in preparation and properties. Then, the main preparation methods of cellulose nanopaper including filtration method and casting method as well as the newly developed technology are systematically elaborated and compared. Furthermore, the advanced applications of cellulose nanopaper including energy storage, electronic devices, water treatment, and high-performance packaging materials were highlighted. Finally, the prospects and ongoing challenges of cellulose nanopaper were summarized.
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Affiliation(s)
- Wei Liu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
- Sustainable Materials and Chemistry, Department of Wood Technology and Wood-Based Composites, University of Göttingen, 37077, Göttingen, Germany
| | - Kun Liu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Haishun Du
- Department of Chemical Engineering, Auburn University, Auburn, AL, 36849, USA.
| | - Ting Zheng
- Department of Automotive Engineering, Clemson University, Greenville, SC, 29607, USA
| | - Ning Zhang
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China
| | - Ting Xu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.
| | - Bo Pang
- Sustainable Materials and Chemistry, Department of Wood Technology and Wood-Based Composites, University of Göttingen, 37077, Göttingen, Germany.
| | - Xinyu Zhang
- Department of Chemical Engineering, Auburn University, Auburn, AL, 36849, USA
| | - Chuanling Si
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.
| | - Kai Zhang
- Sustainable Materials and Chemistry, Department of Wood Technology and Wood-Based Composites, University of Göttingen, 37077, Göttingen, Germany.
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Perspective about Cellulose-Based Pressure and Strain Sensors for Human Motion Detection. BIOSENSORS 2022; 12:bios12040187. [PMID: 35448247 PMCID: PMC9025327 DOI: 10.3390/bios12040187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/04/2022] [Accepted: 03/16/2022] [Indexed: 12/26/2022]
Abstract
High-performance wearable sensors, especially resistive pressure and strain sensors, have shown to be promising approaches for the next generation of health monitoring. Besides being skin-friendly and biocompatible, the required features for such types of sensors are lightweight, flexible, and stretchable. Cellulose-based materials in their different forms, such as air-porous materials and hydrogels, can have advantageous properties to these sensors. For example, cellulosic sensors can present superior mechanical properties which lead to improved sensor performance. Here, recent advances in cellulose-based pressure and strain sensors for human motion detection are reviewed. The methodologies and materials for obtaining such devices and the highlights of pressure and strain sensor features are also described. Finally, the feasibility and the prospects of the field are discussed.
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