Self-healing hydrogels

Internal medicine

Conductivity

Conductive polymer

Fabrication

Pathology

Physical chemistry

Composite material

Nanotechnology

Chemistry

Polymer chemistry

Materials science

Electrical conductor

Alternative medicine

Strain (injury)

Polymer

Medicine

Small

Conductive 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.

Development of Conductive Hydrogels for Fabricating Flexible Strain Sensors