Recent Advances in Functional Bacterial Cellulose for Wearable Physical Sensing Applications

Abstract Flexible physical sensors have attracted increasing attention due to their wide applications in human motion monitoring, human–machine interfaces, smart robots, and personalized medicine in recent years. As a natural biomass, bacterial cellulose (BC) plays an important role in the development of new generation sensors due to the low cost, renewability and biodegradability, 3D porous structure, mechanical flexibility, and robustness, which acts as a substrate, a reinforcing agent, and an active material in the forms of hydrogel, 3D aerogel, nanofiber dispersion, etc. Herein, three construction strategies of BC‐based functional sensing materials including in‐situ biosynthesized method, physical method, and chemical modification are briefly introduced. The focus then turns to the recent advances of functional BC for various sensing applications. Finally, an outlook of the future prospects for developing BC‐based functional sensing materials is presented.