Self-healing cellulose-based flexible sensor: A review

Emerging flexible sensors hold great promise for a variety of applications in electronic devices, environmental monitoring and wearables. This work reviewed the raw materials, preparation methods and properties of cellulose-based flexible sensors prepared by different cellulose-based flexible substrates in the past three years, and then focused on summarizing the main design methods of self-healing cellulose-based flexible sensors and analyzing the effects of common dynamic bonds on the performance of cellulose-based flexible sensors. Finally, the challenges and future opportunities for self-healing cellulose-based flexible sensors were discussed and presented, providing a guide for the design of flexible sensors with cellulosic material as soft matrix. It is believed that cellulose-based self-healing materials with excellent comprehensive performance are expected to become potential ideal candidates for next-generation flexible sensors.