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Jiang X, Wei S, Wang J. Preparation of Tough and Adhesive PVA/P(AM-AMPS)/Glycerol/Laponite/Na 2SO 4 Organohydrogels for All-Solid-State Supercapacitors and Self-Powered Wearable Strain Sensors. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1380-1393. [PMID: 38109561 DOI: 10.1021/acsami.3c13256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Hydrogel electrolytes are ideal for flexible wearable electronic devices because of their high ionic conductivity, flexibility, and biocompatibility. However, some problems, such as poor mechanical properties, low conductivity, and lack of adhesivity, are encountered in the process of hydrogel preparation and application, which restrict the further development of hydrogel electrolytes. In this study, PVA was used as the first network, and P(AM-co-AMPS) as the second network to prepare a double-network hydrogel electrolyte. Laponite and Na2SO4 were introduced into the hydrogel during hydrogel formation as the nanofiller and salt with the salting-out effect to enhance its mechanical properties. The hydrogel electrolyte with high toughness (1663 kJ·m-3), adhesivity (77 kPa), and ionic conductivity (1.7 S·m-1) was obtained. In addition, the hydrogel electrolyte also has excellent antifatigue performance. In the 10 consecutive tensile cycles, the tensile strength does not decay. Due to the high adhesivity of the hydrogel electrolyte, a symmetrical all-solid-state supercapacitor was assembled with a tight interface between the hydrogel electrolyte and the AC/CNT composite electrode. The supercapacitor has a high specific capacitance of 186.1 mF·cm-2 at the current density of 1 mA·cm-2. In addition, the capacitor has good flexibility and can withstand bending at various angles. The hydrogel electrolyte also has excellent strain sensing performance, with an ultrafast tensile response time (0.17 s) and high sensitivity factor (GF = 10.01). Finally, the self-powered sensor system composed of a supercapacitor as the power supply device and hydrogel electrolyte as the sensing part was obtained and applied to human motion monitoring, which provides a potential application in the integrated flexible electronic system.
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Affiliation(s)
- Xiancai Jiang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
- Qingyuan Innovation Laboratory, Quanzhou 362114, China
| | - Siqi Wei
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
- Qingyuan Innovation Laboratory, Quanzhou 362114, China
| | - Jinquan Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
- Qingyuan Innovation Laboratory, Quanzhou 362114, China
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Ran C, Wang J, He Y, Ren Q, Hu H, Zhu J, Gu X, Li M, Zheng L, Li J. Recent Advances in Bioinspired Hydrogels with Environment- Responsive Characteristics for Biomedical Applications. Macromol Biosci 2022; 22:e2100474. [PMID: 35089646 DOI: 10.1002/mabi.202100474] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/25/2021] [Indexed: 11/12/2022]
Abstract
The development of hydrogel-integrated soft materials via the incorporation of therapeutic medicines into bio-compatible hydrogels, serving as host, will significantly contribute to advances in medical diagnosis and treatment. Furthermore, intelligent hydrogels having the ability to respond to local environmental conditions offer a promising approach for the development of novel solutions in the biomedical field. Bioinspired intelligent hydrogels are now becoming a potentially powerful biomaterial class for tissue engineering, drug delivery, and medical device. Recent advances include bioinspired intelligent hydrogels that possess unique mechanical and optical properties as a result of their nature-inspired complex-structured design. In this review, we highlight the latest advances in intelligent bionic hydrogels, as well as strategies targeting smart response of their characteristics across multiple dimensions (such as temperature, light, pH, among others). Finally, the potential development and prospective application of mimicking the natural intelligence of multifunctional medical hydrogels are also discussed. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Chao Ran
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Jiacheng Wang
- 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, China
| | - Yonggang He
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Qian Ren
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Hao Hu
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Jiangqin Zhu
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Xunxin Gu
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Meng Li
- 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, China
| | - Lu Zheng
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
| | - Jing Li
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Army Medical University, Chongqing, 400037, China
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