Self-healing, antibacterial, and conductive double network hydrogel for strain sensors

Janus-type ionic conductive gels with single-sided adhesiveness prepared by a “one-step” method for strain/pressure sensors

“…Antibacterial performance is also one of the important characteristics of self-adhesive sensors. 34,35 This is because the selfadhesive sensor is directly adhered to the skin. The breeding of bacteria may cause skin allergies or adverse reactions and may damage the sensor's sensing performance.…”

Silk fibroin‐based conductive and antibacterial hydrogels with a dual network for flexible sensors

“…However, conductive hydrogels will come into contact with human skin directly when used as an electronic skin or flexible wearable electronics. Then, the antibacterial and anti‐fouling properties of the material are indispensable 35,36 . Thus, exploring SF‐based conductive hydrogels with high strength, antibacterial activity, and conductivity is urgent for their potential applications as flexible strain sensors.…”

A multifunctional conductive nanocomposite hydrogel for high-performance strain sensors

“…The large number of free catechol, phenylboronic acid, amine and hydroxyl groups and many reversible dynamic bonds, such as hydrogen bonds and borate ester bonds endowed the resulting hydrogel with satisfactory mechanical properties, fast self-healing ability, and desirable tissue-adhesive performance. 30 Although a lot of progress has been made in the preparation of hydrogels with multiple functions such as good electronic properties, tunable mechanical flexibility, and selfadhesion, 31,32 to meet the practical application as strain sensors for human motion and physiological activity monitoring, more effort is still needed to further enhance the biocompatibility, biodegradability, and disposability of hydrogel-based strain sensors. Moreover, improving the reliability and longterm stability of wearable hydrogel sensors is also a challenge in practical application.…”

“…Although a lot of progress has been made in the preparation of hydrogels with multiple functions such as good electronic properties, tunable mechanical flexibility, and self-adhesion, 31,32 to meet the practical application as strain sensors for human motion and physiological activity monitoring, more effort is still needed to further enhance the biocompatibility, biodegradability, and disposability of hydrogel-based strain sensors. Moreover, improving the reliability and long-term stability of wearable hydrogel sensors is also a challenge in practical application.…”