Anisotropic and super-strong conductive hydrogels enabled by mechanical stretching combined with the Hofmeister effect

Abstract

In the field of flexible electronic devices, conductive hydrogels have attracted great attention. However, it is difficult for existing hydrogel materials to realize excellent mechanical properties and high electrical conductivity...

A tough, anti-freezing, and low-dehydration rate gelatin hydrogel with inverse temperature-dependent ionic conductivity

“…As soft conductive materials, hydrogels provide a plethora of advantageous properties, including ease of design, excellent stretchability, robust toughness, high conductivity, and considerable biocompatibility. [10][11][12][13] Numerous methodologies, including crosslinking, 14,15 utilization of the salting-out effect, 16,17 compositing with nanomaterials, 18,19 and establishment of double networks, 20,21 have been employed to confer both mechanical toughness and conductivity to hydrogels. Additionally, these hydrogels have been innovatively engineered to possess anti-freezing characteristics and resistance to dehydration, enabling functional performance across a wide temperature range and over extended periods.…”

Injectable spontaneously formed asymmetric adhesive hydrogel with controllable removal for wound healing

“…[19][20][21][22] However, these methods result in the hydrogel having high adhesion properties on both sides, which may accidentally cause adhesion to the surrounding tissues or devices. [23][24][25] Achieving asymmetric adhesion is also one of the hot research topics and solutions of double-side adhesion in the field of hydrogel adhesion and wound healing. [26][27][28][29] Owing to the in vivo application, bilateral adhesion may lead to many operational difficulties or subsequent side effects, such as postoperative tissue adhesion or dressing surface contamination.…”