Cartilage-inspired hydrogel strain sensors with ultrahigh toughness, good self-recovery and stable anti-swelling properties

Abstract

Conventional hydrogels inevitably “swell” under liquid or physiological conditions, which drastically destroys their mechanical properties, severely limiting their practical applicability.

An Anti‐Swellable Hydrogel Strain Sensor for Underwater Motion Detection

“…[17] A cartilage-inspired method was employed to construct a multi-linked network by hydrophobic association and coordination interaction. [18] However, the development of hydrogels with simultaneously high mechanical and electrical properties remains challenging. For instance, the intrinsic conductive hydrogels usually suffer from mechanical brittleness or poor compatibility due to excessive hydrophobicity, while ionic conductive hydrogels lose electrical sensitivity because of excessive…”

Ionic liquids enable the preparation of a copper-loaded gel with transdermal delivery function for wound dressings

“…Weak swelling is a desirable advantage of gels being applied on wound sites. 48,49 The release of Cu 2+ ions is most crucial for therapeutic performance. Fig.…”

Neuron-inspired multifunctional conductive hydrogels for flexible wearable sensors

“…Flexible wearable sensors have been widely pursued for applications in human activity monitors, electronic skin, human-machine interfaces, soft robotics and so forth. [1][2][3][4][5][6][7] Recently, in order to satisfy the requirements for special human groups (such as those who are bedridden or suffering from voice disorders, dyskinesia or Parkinson's disease), ultrastretchable, soft, recoverable and human-friendly multifunctional flexible wearable sensors which could real-time monitor human health condition have been researched extensively. 8,9 Hydrogels with flexibility, resilience, biocompatibility and good mechanical properties have drawn numerous attentions nowadays.…”