Ultrasound-triggered piezocatalytic composite hydrogels for promoting bacterial-infected wound healing

Stimuli-responsive dynamic hydrogels: design, properties and tissue engineering applications

“…When this barium titanate-containing hydrogel is exposed to ultrasound waves, the barium titanate particles can generate reactive oxygen species, thus exhibiting strong anti-bacterial effects, which helps in mitigating the wound healing process. 183 Thus, ultrasound waves could be used in a variety of mechanisms to stimulate the hydrogels to bring out the intended effect (Fig. 6).…”

Self-healing, self-adhesive, stretchable and flexible conductive hydrogels for high-performance strain sensors

“…More importantly, the sensitivity of the hydrogel-based strain sensor was as high as GF = 4.9 because of the strong interactions between the MXene and the polymer network. 14 In addition to conductivity, high flexibility and stretchability, good biocompatibility, and even anti-microbial activity, 15,16 self-healing and self-adhesion are also essential for flexible strain sensors. The long-term durability of hydrogel-based sensors will be improved when the mechanical and electrical properties recover in a short time after being damaged.…”

Reactive oxygen species for therapeutic application: Role of piezoelectric materials

“…59 In contrast, piezocatalysis is found to be promising for efficient ROS production with higher tissue penetration and negligible tissue damaging characteristics. 60 These criteria evolve into specific biocompatible piezoelectric materials for in vivo therapeutic diagnosis. 61 The piezoelectric materials by virtue of piezopotential effectively execute dipole formation, resulting in effectual ROS generation via a piezocatalytic approach.…”