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Journal ArticleDOI

Wearable, Healable, and Adhesive Epidermal Sensors Assembled from Mussel-Inspired Conductive Hybrid Hydrogel Framework

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TLDR
In this paper, conductive, adhesive, wearable, and soft human-motion sensors are successfully assembled from conductive and human-friendly hybrid hydrogels with reliable self-healing capability and robust self-adhesiveness.
Abstract
Healable, adhesive, wearable, and soft human-motion sensors for ultrasensitive human–machine interaction and healthcare monitoring are successfully assembled from conductive and human-friendly hybrid hydrogels with reliable self-healing capability and robust self-adhesiveness. The conductive, healable, and self-adhesive hybrid network hydrogels are prepared from the delicate conformal coating of conductive functionalized single-wall carbon nanotube (FSWCNT) networks by dynamic supramolecular cross-linking among FSWCNT, biocompatible polyvinyl alcohol, and polydopamine. They exhibit fast self-healing ability (within 2 s), high self-healing efficiency (99%), and robust adhesiveness, and can be assembled as healable, adhesive, and soft human-motion sensors with tunable conducting channels of pores for ions and framework for electrons for real time and accurate detection of both large-scale and tiny human activities (including bending and relaxing of fingers, walking, chewing, and pulse). Furthermore, the soft human-motion sensors can be enabled to wirelessly monitor the human activities by coupling to a wireless transmitter. Additionally, the in vitro cytotoxicity results suggest that the hydrogels show no cytotoxicity and can facilitate cell attachment and proliferation. Thus, the healable, adhesive, wearable, and soft human-motion sensors have promising potential in various wearable, wireless, and soft electronics for human–machine interfaces, human activity monitoring, personal healthcare diagnosis, and therapy.

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Journal ArticleDOI

Hydrogel‐Based Multifunctional Soft Electronics with Distributed Sensing Units: A Review

TL;DR: In this paper , the authors summarized the fabrication and applications of hydrogel-based soft electronics, focusing on the multifunctional HSE with patterned conductive circuits and distributed sensing units.
Journal ArticleDOI

Tendon-inspired hybrid hydrogel based on polyvinyl alcohol and gallic acid-lysozyme for promoting wound closure and healing.

TL;DR: In this paper , a cross-linked polyvinyl alcohol (PVA) and gallic acid and lysozyme (GL) hydrogel was developed to promote wound closure and healing.
Journal ArticleDOI

Adhesive Ion-Conducting Hydrogel Strain Sensor with High Sensitivity, Long-Term Stability, and Extreme Temperature Tolerance.

TL;DR: In this article , an ion-conducting hydrogel comprising acrylamide (AM), lauryl methacrylate (LMA), 2-acrylamido-2-methylpropanesulfonic acid (AMPS), and a water/glycerol binary solvent (named the AM-LMA-AMPS-LiCl (water/ glycerol) was designed, which exhibits an enlarged detection range of 0-1823% and improved transparency.
Peer ReviewDOI

Bio‐inspired ionic skins for smart medicine

TL;DR: Ionic skin is a stretchable capacitor comprising hydrogels as the ionic conductors and elastomers as the dielectrics, and realizes pressure and strain sensing through the measurement of the capacitance as mentioned in this paper .
Journal ArticleDOI

Naturally sourced hydrogels: emerging fundamental materials for next-generation healthcare sensing.

TL;DR: In this article , a comprehensive review of the recent advances in naturally sourced hydrogels for constructing multi-functional flexible sensors and healthcare applications thereof is presented, and the design principles and fabrication strategies for hydrogel sensors based on representative natural polymers are outlined after the fundamental material properties required in healthcare sensing applications are presented.
References
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Journal ArticleDOI

Stretchable, Skin-Mountable, and Wearable Strain Sensors and Their Potential Applications: A Review

TL;DR: In this article, the authors present recent advancements in the development of flexible and stretchable strain sensors, including skin-mountable and wearable strain sensors for personalized health-monitoring, human motion detection, human-machine interfaces, soft robotics, and so forth.
Journal ArticleDOI

Single-molecule mechanics of mussel adhesion

TL;DR: A single-molecule study of the substrate and oxidation-dependent adhesive properties of dopa is reported, in which dopa exploits a remarkable combination of high strength and chemical multifunctionality to accomplish adhesion to substrates of widely varying composition.
Journal ArticleDOI

Fiber‐Based Wearable Electronics: A Review of Materials, Fabrication, Devices, and Applications

TL;DR: This article attempts to critically review the current state-of-arts with respect to materials, fabrication techniques, and structural design of devices as well as applications of the fiber-based wearable electronic products.
Journal ArticleDOI

Flexible and Stretchable Physical Sensor Integrated Platforms for Wearable Human-Activity Monitoringand Personal Healthcare.

TL;DR: The latest successful examples of flexible and stretchable physical sensors for the detection of temperature, pressure, and strain, as well as their novel structures, technological innovations, and challenges, are reviewed.
Journal ArticleDOI

An electrically and mechanically self-healing composite with pressure- and flexion-sensitive properties for electronic skin applications

TL;DR: This work describes a composite material composed of a supramolecular organic polymer with embedded nickel nanostructured microparticles, which shows mechanical and electrical self-healing properties at ambient conditions and shows that the material is pressure- and flexion-sensitive, and therefore suitable for electronic skin applications.
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