Flexible, transparent, and antibacterial ionogels toward highly sensitive strain and temperature sensors
| Autor: | Dengwen Hu, Jianwen Chen, Niu Jiang, Yaping Wang, Liangren Chen, Yutian Zhu, Xiaohua Chang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Strain (chemistry) General Chemical Engineering Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Human motion 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences Highly sensitive Freezing point chemistry.chemical_compound Operating temperature chemistry Ionic liquid Environmental Chemistry 0210 nano-technology Polyurethane |
| Zdroj: | Chemical Engineering Journal. 424:130418 |
| ISSN: | 1385-8947 |
| DOI: | 10.1016/j.cej.2021.130418 |
| Popis: | Skin-like sensor has recently emerged for its promising applications in human motion monitoring and healthcare. However, it is challenging to develop flexible skin-like sensors multifunctionally coupled with high transparency and strain sensitivity, accurate thermosensation, and good antibacterial activity. Herein, we fabricate flexible and transparent (94.3%) ionogels by facilely mixing ionic liquid (IL) and thermal-plastic polyurethane (TPU) to be as skin-like sensors. The prepared TPU@IL ionogel-based sensor exhibits wide strain range (0.1–500%) and fast response (96 ms) to strain stimuli. Attributed to the temperature-dependent conductivity and low freezing point of IL, the ionogels can be served as stretchable temperature sensor, containing wide operating temperature window (−40-100 °C) and high detecting accuracy (0.1 °C). Moreover, the ionogels exhibit excellent antibacterial activity. This work may inspire future research to design full-featured skin-like sensors. |
| Databáze: | OpenAIRE |
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