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Download fileA Biodegradable and Recyclable Piezoelectric Sensor Based on a Molecular Ferroelectric Embedded in a Bacterial Cellulose Hydrogel
journal contribution
posted on 2022-03-02, 12:04 authored by Junling Lu, Sanming Hu, Wenru Li, Xuefang Wang, Xiwei Mo, Xuetian Gong, Huan Liu, Wei Luo, Wen Dong, Chaotan Sima, Yaojin Wang, Guang Yang, Jing-Ting Luo, Shenglin Jiang, Zhijun Shi, Guangzu ZhangCurrently,
various electronic devices make our life more and more
safe, healthy, and comfortable, but at the same time, they produce
a large amount of nondegradable and nonrecyclable electronic waste
that threatens our environment. In this work, we explore an environmentally
friendly and flexible mechanical sensor that is biodegradable and
recyclable. The sensor consists of a bacterial cellulose (BC) hydrogel
as the matrix and imidazolium perchlorate (ImClO4) molecular
ferroelectric as the functional element, the hybrid of which possesses
a high sensitivity of 4 mV kPa–1 and a wide operational
range from 0.2 to 31.25 kPa, outperforming those of most devices based
on conventional functional biomaterials. Moreover, the BC hydrogel
can be fully degraded into glucose and oligosaccharides, while ImClO4 can be recyclable and reused for the same devices, leaving
no environmentally hazardous electronic waste.
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wide operational rangenonrecyclable electronic wastemolecular ferroelectric embeddedflexible mechanical sensorconventional functional biomaterials4 mv kpa4 subsensor consistsfunctional element25 kpalarge amountimidazolium perchloratehigh sensitivityfully degradedenvironmentally friendlybacterial cellulose