The conductive hydrogels always suffered from high internal friction, large hysteresis, and low capability of accurately predicting physical deformation, which seriously restricted their application in smart wearable devices. To address these problems, solvent molecules are directionally inserted into the polymer molecule chains via bridge effect to effectively reduce the molecular internal friction. Moreover, swelling is also combined to eliminate the temporary entanglements in the hydrogel system. The cooperation between the bridge and swollen effect endows the prepared polyacrylamide (PAM)/laponite/H3BO3/ethylene glycol (Eg) organohydrogel (PLBOH) ultralow hysteresis (1.38%, ε = 100%), ultrafast response (≈10 ms), and high linearity in the whole‐strain‐range (R2 = 0.996) with a great sensitivity (GF = 2.68 at the strain range of 0–750%). Meanwhile, the prepared PL10B30OH exhibits long‐term stability, excellent stretchability, and low dissipated energy. Furthermore, the assembled triboelectric nanogenerator (TENG) displays an outstanding energy harvesting performance with an output voltage of 200 V with the size of 20 mm × 20 mm. The assembled strain sensors can monitor the small strain of facial expressions and large strain of human movements, indicating the tremendous applications in self‐powered intelligent and flexible wearable electronics under harsh environmental conditions.

Multifunctional Organohydrogel with Ultralow‐Hysteresis, Ultrafast‐Response, and Whole‐Strain‐Range Linearity for Self‐Powered Sensors

Emerging MXene/cellulose composites: Design strategies and diverse applications

Cellulosic gel-based triboelectric nanogenerators for energy harvesting and emerging applications

An overview of conductive composite hydrogels for flexible electronic devices

Wearable electronics have experienced a blooming development and advancement over the past few years. Wearable devices with optical modulation in the visible and infrared range attract great interest due to...

Wearable electrochromic materials and devices: from visible to infrared modulation

Hydrogels have been usually utilized as materials to fabricate multiresponsive sensors, triboelectric nanogenerator, and supercapacitor, respectively in the wearable devices applications. In order to develop an organohydrogel-based multiresponsive sensor for...

A tough organohydrogel-based multiresponsive sensor for triboelectric nanogenerator and supercapacitor toward wearable intelligent devices

Hydrogel has been extensively investigated for its unique mechanical and ionic conductive properties. However, the applications of conventional hydrogels have been limited for their poor durability and low external perception....

Bio-inspired Color-Changing and Self-Healing Hybrid Hydrogel for Wearable Sensors and Adaptive Camouflage

With the fast development of new science and technology, wearable devices are in great demand in modern human daily life. However, the energy problem is a long-lasting issue to achieve real smart, wearable, and portable devices. Flexible thermoelectric generators (TEGs) based on thermoelectric conversion systems can convert body waste heat into electricity with excellent flexibility and wearability, which shows a new direction to solving this issue. Here in this work, polyethylenimine (PEI) and gold nanoparticles (Au NPs) twin surface-modified carbon nanotube fibers (CNTFs) were designed and prepared to fabricate thermalelectric textiles (TET) with high performance, good air stability, and high-efficiency power generation. To better utilize the heat emitted by the human body, microencapsulated phase change materials (MPCM) were coated on the hot end of the TET to achieve the phase-transition-promoted TET. MPCM-coated TET device could generate 25.7% more energy than the untreated control device, which indicates the great potential of the phase-transition-promoted TET.

Phase-Transition-Promoted Thermoelectric Textiles Based on Twin Surface-Modified CNT Fibers.

PET Composite Fiber Membranes Modified with Modified Nanoscale ZnO Exhibit Synergistic Antibacterial Effects

Mass Production of Cnt Fibers and Hybrid Yarns for Washable, Weather Tolerance, and Sweat Resistance Body Strain Sensor

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