Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 19, Pages 22163-22169Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c04341
Keywords
Naturally derived materials; strain sensors; milk protein fabric; natural rubber; environmental-friendly fabrication
Funding
- National Natural Science Foundation of China [51673121, 51873123]
- Fundamental Scientific Research Funds for Chinese Academy of Tropical Agricultural Sciences [1630122019009]
- Science & Technology Major Project of Guangxi Province [AA18242006, AA18242008]
- Special Foundation for Innovation-Driven Development of Hezhou [PT0710004]
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Flexible strain sensors are of great interest for future applications in the next-generation wearable electronic devices. However, most of the existing flexible sensors are based on synthetic polymer materials with limitations in biocompatibility and biodegradability, which may lead to potential environmental pollution. Here, we propose a naturally derived wearable strain sensor based on natural-sourced materials including milk protein fabric, natural rubber, tannic, and vitamin C. The obtained sensors exhibit remarkably enhanced mechanical properties and high sensitivity contrast to currently reported natural resource-based sensors, owing to the metal-ligand interface design and the construction of an organized three-dimensional conductive network, which well fit the requirements of electronic skin. This work represents an important advance toward the fabrication of naturally derived high-performance strain sensors and expanding possibilities in the design of environmental-friendly soft actuators, artificial muscle, and other wearable electronic devices.
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