Conductive hydrogels for bioenergy harvesting and self-powered application

Recent advances of hydrogels as smart dressings for diabetic wounds

“…Collecting bioenergy from the human body to achieve self-powered hydrogels is a promising approach. 182 Color-based monitoring units have the advantage of not requiring additional power, but their accuracy and sensitivity still need to be improved. In addition, the smart hydrogel can regulate its degradation and release behavior through special design strategies, so that it can intelligently sense the state of the wound microenvironment, and achieve responsive treatment to stop the injury.…”

Perspectives on recent advancements in energy harvesting, sensing and bio-medical applications of piezoelectric gels

“…It has been reported that piezoelectric hydrogels are mechanically robust and adequately stable in various environments allowing to monitor external stimuli such as pressure, strain, temperature, pH, humidity and human-motion sensing via electrical signals. 192,193 Therefore, it is crucial to obtain a solid understanding of current progress and advancements of hydrogel-based piezoelectric devices which can be potentially utilized for future generation smart electronics and biomimetic e-skin devices applications. Hence, the piezoelectric properties of hydrogels are appealing, have great potential for the development of flexible, stretchable, self-powered, and wearable electrical stimulation devices featuring applications in energy harvesting and sensing.…”

Hydrogel Electrolyte Enabled High‐Performance Flexible Aqueous Zinc Ion Energy Storage Systems toward Wearable Electronics

“…By virtue of the compatibility with water contained internal environment of AZIESSs, it can serve as the electrolyte. [10] Hydrogel possesses 3D networks with a great amount of water enveloped by the polymer chains, seized of bright and broad application prospects in numerous aspects encompassing artificial tissues, [11,12] flexible armors, [13] medical treatments, [14,15] electronic skins, [16,17] flexible sensors [18][19][20] and energy storage devices. [10] The intrinsic flexibility stemming from the strength and local movability of the polymer chains endows hydrogels with integrality during deformation.…”