Environment-tolerant versatile ion-conductive eutectic hydrogels for self-powered wearable flexible sensors

Constructing robust and recyclable self-powered polysaccharide-based hydrogels by adjusting Zn2+/Li+ bimetallic networks

“…Leveraging the excellent mechanical and electrochemical properties, the hydrogel prepared in this work can be used as a [56][57][58][59][60][61][62][63][64] recyclable electrolyte in self-powered hydrogel batteries. This can be achieved by using a zinc plate, a hydrogel, and a copper plate as the anode, electrolyte, and cathode, respectively, and then encapsulating them to form a soft package battery.…”

“…(e) I-t curves of the hydrogel equilibrated with 1 M concentration subjected to over 1000 compression cycles. (f ) Performance comparison of the hydrogels in this study with other conductive hydrogels [56][57][58][59][60][61][62][63][64].…”

Ultrathin hierarchical hydrogel–carbon nanocomposite for highly stretchable fast-response water-proof wearable humidity sensors

“…12–14 Various hydrogel-based humidity sensors have been reported with good sensing performance and flexibility. 15–18 However, conventional hydrogel humidity sensors usually employ hydrogels with large thickness. 19–22 These bulk hydrogels could uptake a large amount of moisture before their resistivity reaches equilibrium and the diffusion of water molecules within the hydrogel could take a long time, which seriously impedes the adsorption and desorption process of water molecules, resulting in a rather slow response and recovery.…”

Hydrophobically Associated Hydrogel for High Sensitivity and Resolution of an Interdigital Electrode Pressure Sensor

“…The hydrogels can be categorized into two major groups according to the way they are cross-linked such as physically cross-linked gels and chemically cross-linked gels . In recent years, the development, application, and design principles of flexible strain sensors have been widely studied, among which hydrogel-based flexible strain sensing has gained much attention due to their good biocompatibility, high flexibility, unique mechanical properties, and tunable electrical conductivity. , As a key subfield of flexible electronic devices, flexible strain sensors can convert external stimuli (tensile strain, compressive strain) into monitorable electrical signals − and have potential applications in human health monitoring, − wearable electronic devices, − artificial neural systems, , and haptic processing systems. , …”