Collagen-Based Organohydrogel Strain Sensor with Self-Healing and Adhesive Properties for Detecting Human Motion

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(9), P. 12350 - 12362

Published: Feb. 24, 2023

Conductive hydrogels are ideal for flexible sensors, but it is still a challenge to produce such with combined toughness, self-adhesion, self-healing, anti-freezing, moisturizing, and biocompatibility properties. Herein, inspired by natural skin, highly stretchable, strain-sensitive, multi-environmental stable collagen-based conductive organohydrogel was constructed using collagen (Col), acrylic acid, dialdehyde carboxymethyl cellulose, 1,3-propylene glycol, AlCl3. The resulting exhibited excellent tensile (strain >800%), repeatable adhesion (>10 times), self-healing [self-healing efficiency (SHE) ≈ 100%], anti-freezing (-60 °C), moisturizing (>20 d), biocompatible This also possessed good electrical conductivity (σ = 3.4 S/m) strain-sensitive properties [GF (gauge factor) 13.65 the maximal strain of 400%]. Notably, had considerable low-temperature performance (SHE 88% at -24 °C) rapid underwater property 92%, time <20 min). type sensor could not only accurately continuously monitor large-scale motions human body provide an accurate response tiny motions. work proposes development strategy multifunctional multiple environmental stability provides potential research value construction biomimetic electronic skin.

Language: Английский

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A conductive hydrogel based on nature polymer agar with self-healing ability and stretchability for flexible sensors

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 454, P. 139843 - 139843

Published: Oct. 27, 2022

Language: Английский

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Nanocomposite conductive hydrogels with Robust elasticity and multifunctional responsiveness for flexible sensing and wound monitoring

Materials Horizons, Journal Year: 2023, Volume and Issue: 10(6), P. 2096 - 2108

Published: Jan. 1, 2023

An ultradurable conductive hydrogel is designed via radical polymerization of APBA and AM in the presence XLG-stabilized CNTs. The can monitor various human motions exhibit vast potential sensing pro-healing skin wounds.

Language: Английский

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A Semi‐Interpenetrating Poly(Ionic Liquid) Network‐Driven Low Hysteresis and Transparent Hydrogel as a Self‐Powered Multifunctional Sensor

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(32)

Published: May 6, 2024

Abstract Conductive hydrogels are gaining significant attention as promising candidates for the fabrication materials flexible electronics. Nevertheless, improving tensile properties, hysteresis, durability, adhesion, and electrochemical properties of these remains challenging. This work reports development a novel semi‐interpenetrating network poly(ionic liquid) hydrogel named PATV, via in situ polymerization acrylamide, N ‐[Tris(hydroxymethyl)methyl] 1‐vinyl‐3‐butylimidazolium tetrafluoroborate. The density functional theory calculations reveal that acts physical cross–linking points to construct hydrogen‐bond networks. Furthermore, networks dissipate energy efficiently quickly, thus stress concentration hysteresis avoided. prepared has low (9%), high (900%), fast response (180 ms), sensitivity (gauge factor = 10.4, pressure 0.14 kPa −1 ), wide sensing range (tensile range: 1–600%, compression 0.1–20 kPa). A multifunctional sensor designed based on enables real‐time, rapid, stable response‐ability detection human movement, facial expression recognition, pronunciation, pulse, handwriting, Morse code encryption. assembled triboelectric nanogenerator displays an excellent harvesting capability, highlighting its potential application self‐powered wearable electronic devices.

Language: Английский

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Micelle–Micelle Cross-Linked Highly Stretchable Conductive Hydrogels for Potential Applications of Strain and Electronic Skin Sensors

Chemistry of Materials, Journal Year: 2023, Volume and Issue: 35(14), P. 5582 - 5592

Published: July 7, 2023

Wearable sensors made of flexible and stretchable hydrogels have garnered significant attention. However, their use has been limited by poor mechanical performance, such as toughness, self-recovery, a large response–recovery time. To overcome these limitations, we developed novel cross-linking agent-based hydrogel with high stretchability, antifatigue properties, good conductivity. These were introducing l-glutamic acid (LGA) into hydrophobically cross-linked polyacrylamide (PAmm) chains. In this system, LGA dynamically the micelle–micelle micelle–polymer chains greatly regulates properties hydrogels. The noncovalent synergistic interactions that came insertion enable to achieve stretchability stress values, fast self-recovery behaviors without help foreign stimuli. Additionally, LGA-based can function durable highly sensitive strain for detecting various deformations time gauge factor value. As result, capability be designed wearable are capable human joint motions, neck twisting, bending, wrist, finger, elbow movements. Similarly, monitoring different subtle motions speaking differentiating between words, swallowing, drinking through larynx vibrations. Besides ability differentiate reproduce written words reliability. LGA-regulated potential applications in electric skins, medical monitoring, soft robotics, touch panels.

Language: Английский

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Surface Modification of Super Arborized Silica for Flexible and Wearable Ultrafast‐Response Strain Sensors with Low Hysteresis

Advanced Science, Journal Year: 2023, Volume and Issue: 10(25)

Published: June 28, 2023

Conductive hydrogels exhibit high potential in the fields of wearable sensors, healthcare monitoring, and e-skins. However, it remains a huge challenge to integrate elasticity, low hysteresis, excellent stretch-ability physical crosslinking hydrogels. This study reports synthesis polyacrylamide (PAM)-3-(trimethoxysilyl) propyl methacrylate-grafted super arborized silica nanoparticle (TSASN)-lithium chloride (LiCl) hydrogel sensors with electrical conductivity. The introduction TSASN enhances mechanical strength reversible resilience PAM-TSASN-LiCl by chain entanglement interfacial chemical bonding, provides stress-transfer centers for external-force diffusion. These show outstanding (a tensile stress 80-120 kPa, elongation at break 900-1400%, dissipated energy 0.8-9.6 kJ m

Language: Английский

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Pathways toward wearable and high-performance sensors based on hydrogels: toughening networks and conductive networks

National Science Review, Journal Year: 2023, Volume and Issue: 10(9)

Published: June 22, 2023

ABSTRACT Wearable hydrogel sensors provide a user-friendly option for wearable electronics and align well with the existing manufacturing strategy connecting communicating large numbers of Internet Things devices. This is attributed to their components structures, which exhibit exceptional adaptability, scalability, bio-compatibility, self-healing properties, reminiscent human skin. review focuses on recent research principal structural elements hydrogels: toughening networks conductive networks, highlighting strategies enhancing mechanical electrical properties. are categorized an extensive exploration composition, mechanism, design approach. provides comprehensive understanding hydrogels offers guidance structures in order develop high-performance sensors.

Language: Английский

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AI energized hydrogel design, optimization and application in biomedicine

Materials Today Bio, Journal Year: 2024, Volume and Issue: 25, P. 101014 - 101014

Published: Feb. 29, 2024

Traditional hydrogel design and optimization methods usually rely on repeated experiments, which is time-consuming expensive, resulting in a slow-moving of advanced development. With the rapid development artificial intelligence (AI) technology increasing material data, AI-energized hydrogels for biomedical applications has emerged as revolutionary breakthrough materials science. This review begins by outlining history AI potential advantages using hydrogels, such prediction properties, multi-attribute optimization, high-throughput screening, automated discovery, optimizing experimental design, etc. Then, we focus various supported biomedicine, including drug delivery, bio-inks manufacturing, tissue repair, biosensors, so to provide clear comprehensive understanding researchers this field. Finally, discuss future directions prospects, new perspective research novel applications.

Language: Английский

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A Comprehensive Review of Hydrogel-Based Drug Delivery Systems: Classification, Properties, Recent Trends, and Applications

AAPS PharmSciTech, Journal Year: 2024, Volume and Issue: 25(4)

Published: March 21, 2024

Language: Английский

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Self-powered porous polymer sensors with high sensitivity for machine learning-assisted motion and rehabilitation monitoring

Nano Energy, Journal Year: 2024, Volume and Issue: 128, P. 109817 - 109817

Published: May 31, 2024

Language: Английский

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