Recent Application of Cellulose Gel in Flexible Sensing-A Review

Abstract

There is a huge and growing demand for flexible electronics for electronic skin, wearable devices and medical equipment. At the same time, celluloses with the special crystal shape, surface structure, good biocompatibility and easy degradability is frequently used as a substrate or modified substance for flexible electronic equipment. Therefore, the use of cellulose as a raw material is expected to contribute to environmental protection and help to overcome problems such as biocompatibility and stretchability required by flexible sensing devices. The goal of this review is to provide an overview on the latest developments in cellulose gel-based flexible sensors, especially focusing on the detailed descriptions of the major three applications in electronic skin, sports equipment and medical equipment, as well as the relationship between the structure and properties of the cellulose gel material. Finally, an outlook of the challenges and future possibilities for development of flexible sensing equipment based on cellulose gel material is presented.