A comprehensive review of polyvinyl alcohol (PVA) hydrogels prepared by the
freezing/thawing (FT) process is presented. We discuss their preparation, gelation …

Multiresponsive flexile sensors with strain, temperature, humidity, and other sensing abilities
serving as real electronic skin (e‐skin) have manifested great application potential in flexible …

Slippery and transparent polyvinyl alcohol (PVA) hydrogels with mechanical robustness
exhibit broad applications in artificial biological soft tissues, flexible wearable electronics …

Multiple stretchable materials have been successively developed and applied to wearable
devices, soft robotics, and tissue engineering. Organohydrogels are currently being widely …

Hydrogels have three‐dimensional network structures, high water content, good flexibility,
biocompatibility, and stimulation response, which have provided a unique role in many fields …

Flexible strain sensor shows great development prospects in medical treatment, human-
machine interface and environmental monitoring fields due to their great flexibility, ductility …

Integrating structural anisotropy, excellent mechanical properties, and superior sensing
capability into conductive hydrogels is of great importance to wearable flexible electronics …

A conductive and biocompatible hybrid hydrogel was successfully assembled into an
adhesive, flexible wearable sensor for ultra-sensitive human–computer interaction and …

Wearable flexible sensors based on conductive hydrogels have received extensive attention
in the fields of electronic skin and smart monitoring. However, conductive hydrogels contain …

The eye is one of the most complex organs in the human body, containing rich and critical
physiological information (eg, intraocular pressure, corneal temperature, and pH) as well as …