期刊
CHEMPHYSCHEM
卷 22, 期 22, 页码 2266-2280出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.202100279
关键词
Silk; piezoelectricity; bioelectronics; self-powered; green electronics
资金
- Research Grants Council [C6107-20G]
- Innovation and Technology Commission of Hong Kong SAR Government, China [MRP/077/20]
The production of bioelectronics should adopt sustainability concepts, and green electronics is gaining attention as a new concept. Silk, as a green material with innate piezoelectricity, can be used to manufacture self-powered bioelectronic systems.
Commercially available bioelectronics account for significant percentage of e-waste, especially battery waste, that demand immediate intervention due to rising environmental concerns. Consumers are becoming increasingly aware and cautious of their contribution to carbon footprint on a regular basis. It has become imperative to adopt sustainability in every aspect of production of bioelectronics taking into consideration the growing market for wearable healthcare monitoring system. Green electronics is a relatively new concept gaining tremendous attention within the scientific and industrial community with the ultimate goal of employing organic, biodegradable, and self-sustainable system to replace the conventional inorganic battery-powered electronics. Silk is a green material that has been extensively explored for its use in functional electronics due to its tunable biodegradability and flexibility. Nevertheless, an intriguing property of Silk is its innate piezoelectricity. This review highlights the importance of crystal orientation and structure of Silk Fibroin to display piezoelectric response and documents possible strategies for its enhancement. It also provides insight into the possibility of using piezoelectric Silk as a piezoelectric sensor, actuator, and energy harvester to form self-powered hybrid systems for autonomous bioelectronics
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