Development of Conductive Hydrogels for Fabricating Flexible Strain Sensors

Conductive hydrogels are extensively studied in the field of strain sensors due to their conductivity, mechanical properties, self-healing, and anti-freezing properties, which allow strain sensors to show excellent performance even at subzero temperatures. This review summarizes the properties of conductive hydrogels and their application in the fabrication of strain sensors working in different modes. AbstractConductive hydrogels can be prepared by incorporating various conductive materials into polymeric network hydrogels. In recent years, conductive hydrogels have been developed and applied in the field of strain sensors owing to their unique properties, such as electrical conductivity, mechanical properties, self-healing, and anti-freezing properties. These remarkable properties allow conductive hydrogel-based strain sensors to show excellent performance for identifying external stimuli and detecting human body movement, even at subzero temperatures. This review summarizes the properties of conductive hydrogels and their application in the fabrication of strain sensors working in different modes. Finally, a brief prospectus for the development of conductive hydrogels in the future is provided.

Source: Small - October 19, 2021 Category: Nanotechnology Authors: Gang Li, Chenglong Li, Guodong Li, Dehai Yu, Zhaoping Song, Huili Wang, Xiaona Liu, Hong Liu, Wenxia Liu Tags: Review Source Type: research