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.read more
Citations
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Mussel-Inspired Cellulose Nanocomposite Tough Hydrogels with Synergistic Self-Healing, Adhesive, and Strain-Sensitive Properties
TL;DR: Li et al. as discussed by the authors designed a self-healing and self-adhesive ionic gel by constructing synergistic multiple coordination bonds among tannic acid-coated cellulose nanocrystals (TA@CNCs), poly(acrylic acid) chains, and metal ions in a covalent polymer network.
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Conductive MXene Nanocomposite Organohydrogel for Flexible, Healable, Low‐Temperature Tolerant Strain Sensors
Journal ArticleDOI
Hydrogel Adhesion: A Supramolecular Synergy of Chemistry, Topology, and Mechanics
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Highly Stretchable and Biocompatible Strain Sensors Based on Mussel-Inspired Super-Adhesive Self-Healing Hydrogels for Human Motion Monitoring.
Xin Jing,Hao-Yang Mi,Hao-Yang Mi,Yu-Jyun Lin,Eduardo Enriquez,Xiangfang Peng,Lih-Sheng Turng +6 more
TL;DR: A novel hydrogel was synthesized by incorporating polydopamine-coated talc (PDA-talc) nanoflakes into a polyacrylamide (PAM)Hydrogel inspired by the natural mussel adhesive mechanism, which displayed strong adhesiveness to various substrates, including human skin, and the adhesion strength surpassed that of commercial double-sided tape and glue sticks.
Journal ArticleDOI
Stimuli-Responsive Conductive Nanocomposite Hydrogels with High Stretchability, Self-Healing, Adhesiveness, and 3D Printability for Human Motion Sensing.
TL;DR: The presented nanocomposite hydrogels displayed good electrical conductivity, rapid self-healing and adhesive properties, flexible and stretchable mechanical properties, and high sensitivity to near-infrared light and temperature.
References
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Journal ArticleDOI
Wearable, Human‐Interactive, Health‐Monitoring, Wireless Devices Fabricated by Macroscale Printing Techniques
TL;DR: In this article, a fully printed wearable human-interactive device called a "smart bandage" is proposed as the first proof of concept, which incorporates touch and temperature sensors to monitor health, a drug-delivery system to improve health, and a wireless coil to detect touch.
Journal ArticleDOI
Capacitive Soft Strain Sensors via Multicore–Shell Fiber Printing
Andreas Frutiger,Joseph T. Muth,Daniel M. Vogt,Yigit Menguc,Alexandre Brincalepe Campo,Alexander D. Valentine,Conor J. Walsh,Jennifer A. Lewis +7 more
TL;DR: A new method for fabricating textile integrable capacitive soft strain sensors is reported, based on multicore-shell fiber printing, which provides accurate and hysteresis-free strain measurements under both static and dynamic conditions.
Journal ArticleDOI
Highly Sensitive, Flexible, and Wearable Pressure Sensor Based on a Giant Piezocapacitive Effect of Three-Dimensional Microporous Elastomeric Dielectric Layer.
Donguk Kwon,Tae-Ik Lee,Jongmin Shim,Seunghwa Ryu,Min Seong Kim,Seung-Hwan Kim,Taek-Soo Kim,Inkyu Park +7 more
TL;DR: A flexible and wearable pressure sensor based on the giant piezocapacitive effect of a three-dimensional microporous dielectric elastomer, which is capable of highly sensitive and stable pressure sensing over a large tactile pressure range and marks the realization of a true tactile pressure sensor.
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Conductive “Smart” Hybrid Hydrogels with PNIPAM and Nanostructured Conductive Polymers
TL;DR: In this article, thermally responsive and conductive hybrid hydrogels are synthesized by in situ formation of continuous network of conductive polymer hydrogel crosslinked by phytic acid in poly(N-isopropylacrylamide) matrix.
Journal ArticleDOI
A Conductive Self-Healing Hybrid Gel Enabled by Metal–Ligand Supramolecule and Nanostructured Conductive Polymer
TL;DR: This work develops for the first time a hybrid gel based on self-assembled supramolecular gel and nanostructured polypyrrole that synergizes the dynamic assembly/disassembly nature of metal-ligand supramolescule and the conductive nanostructure of polyp Pyrrole hydrogel and exhibits features of high conductivity, appealing mechanical and electrical self-healing property without any external stimuli, and enhanced mechanical strength and flexibility.