Recent Progress in Development of Wearable Pressure Sensors Derived from Biological Materials

This review summarizes recent progress in the use of biological materials (biomaterials) in wearable pressure sensors. Biomaterials are abundant, sustainable, biocompatible, and biodegradable. Especially, many have sophisticated hierarchical structure and biological characteristics, which are attractive candidates for facile and ecologically‐benign fabrication of wearable pressure sensors that are biocompatible, biodegradable, and highly sensitivity. The biomaterials and structures that use them in wearable pressure sensors that exploit sensing mechanisms such as piezoelectric, triboelectric, piezoresistive and capacitive effects are present. Finally, remaining impediments are discussed to use of biomaterials in wearable pressure sensors. This review summarizes recent progress in the use of biological materials in wearable pressure sensors. The intention is to highlight the importance of utilizing biomaterials for wearable pressure sensors that are biocompatible, biodegradable, and have required sensitivity. Basically, these wearable pressure sensors are achieved in two ways: by using biologically‐inspired structures, and by introducing biological materials as components.