Journal ArticleDOI
A highly sensitive strain sensor based on a silica@polyaniline core–shell particle reinforced hydrogel with excellent flexibility, stretchability, toughness and conductivity
TLDR
In this paper, a polyaniline coated silica (SiO2@PANI) core-shell particles were incorporated into an acrylamide-lauryl methacrylate (P(AM/LMA) copolymer matrix.Abstract:
Hydrogel-based flexible strain sensors for personal health monitoring and human-machine interaction have attracted wide interest among researchers. In this paper, hydrophobic association and nanocomposite conductive hydrogels were successfully prepared by introducing polyaniline coated silica (SiO2@PANI) core-shell particles into an acrylamide-lauryl methacrylate (P(AM/LMA)) copolymer matrix. The hydrophobic interaction between the SiO2@PANI core-shell particles and the hydrophobic LMA in the P(AM/LMA) chains induced the hydrogels with outstanding mechanical properties. Furthermore, the polyaniline on the SiO2 surface and the inorganic salt formed a conductive network, which synergistically enhanced the conductivity of the hydrogels. The obtained hydrogels integrate high tensile strength (1398 kPa), ultra-stretchability (>1000%), wonderful strain sensitivity (gauge factor = 10.407 at 100-1100% strain), quick response (300 ms), and excellent durability (>300 cycles) due to the hydrophobic association and nanocomposite effect. The prepared SiO2@PANI-P(AM/LMA) hydrogel shows high stress sensitivity to detect human movements and displays a broad application prospect in flexible strain-sensor field.read more
Citations
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Journal ArticleDOI
Development of Conductive Hydrogels for Fabricating Flexible Strain Sensors.
Li Gang,Chenglong Li,Guodong Li,Dehai Yu,Zhaoping Song,Huili Wang,Xiaona Liu,Hong Liu,Hong Liu,Wenxia Liu +9 more
TL;DR: In this article, a review summarizes the properties of conductive hydrogels and their application in the fabrication of strain sensors working in different modes, and a brief prospectus for the development of conductively hydrogel-based strain sensors in the future is provided.
Journal ArticleDOI
A Review of Design and Fabrication Methods for Nanoparticle Network Hydrogels for Biomedical, Environmental, and Industrial Applications
TL;DR: The way in which the NNH structure is applied to improve the performance of the hydrogel in each application is emphasized, with the aim of developing a set of principles that can be used to rationally design NNHs for future uses.
Journal ArticleDOI
Stretchable, compressible, and conductive hydrogel for sensitive wearable soft sensors.
Xuwen Peng,Wenda Wang,Wenshuai Yang,Jingsi Chen,Qiongyao Peng,Tao Wang,Diling Yang,Jianmei Wang,Haotian Zhang,Hongbo Zeng +9 more
TL;DR: In this paper , a multifunctional conductive hydrogel strain sensor is fabricated by incorporating a conductive polymer Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT: PSS) into a mechanically robust poly (vinyl alcohol)(PVA)/poly (acrylic acid) double network (DN).
Journal ArticleDOI
Dually cross-linked single network poly(ionic liquid)/ionic liquid ionogels for a flexible strain-humidity bimodal sensor.
TL;DR: In this paper, a dually cross-linked single network poly(ionic liquid)/ionic liquid (DCSN PIL/IL) ionogel was prepared by a simple one-step photopolymerization of the [SBMA][AA] in another IL 1-ethyl-3methylimidazolium dicyanoamide ([EmIm][DCA]).
Journal ArticleDOI
Hypersensitized Strain Sensors Based on Conductive Hydrogels with Excellent Conductivity and Good Mechanical Properties
TL;DR: In this paper , the authors presented a facile approach for preparing sensitive hydrogel-based sensors with stretchability, excellent conductivity, and suitability for detecting small strains by reducing silver particles through aqueous in situ reduction on the surface of lignosulfonate/polyvinyl alcohol composite hydrogels.
References
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Journal ArticleDOI
A stretchable carbon nanotube strain sensor for human-motion detection
Takeo Yamada,Yuhei Hayamizu,Yuki Yamamoto,Yoshiki Yomogida,Ali Izadi-Najafabadi,Don N. Futaba,Kenji Hata +6 more
TL;DR: A class of wearable and stretchable devices fabricated from thin films of aligned single-walled carbon nanotubes capable of measuring strains up to 280% with high durability, fast response and low creep is reported.
Journal ArticleDOI
Mussel-Inspired Adhesive and Tough Hydrogel Based on Nanoclay Confined Dopamine Polymerization.
Lu Han,Xiong Lu,Xiong Lu,Liu Kezhi,Kefeng Wang,Liming Fang,Lu-Tao Weng,Hongping Zhang,Youhong Tang,Fuzeng Ren,Cancan Zhao,Guoxing Sun,Rui Liang,Zongjin Li +13 more
TL;DR: This free-standing, adhesive, tough, and biocompatible hydrogel may be more convenient for surgical applications than adhesives that involve in situ gelation and extra agents.
Journal ArticleDOI
Wearable, Healable, and Adhesive Epidermal Sensors Assembled from Mussel-Inspired Conductive Hybrid Hydrogel Framework
TL;DR: 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.
Journal ArticleDOI
Highly Stretchable, Elastic, and Ionic Conductive Hydrogel for Artificial Soft Electronics
Journal ArticleDOI
Skin-Inspired Multifunctional Autonomic-Intrinsic Conductive Self-Healing Hydrogels with Pressure Sensitivity, Stretchability, and 3D Printability.
Mohammad Ali Darabi,Mohammad Ali Darabi,Ali Khosrozadeh,Rene Mbeleck,Yuqing Liu,Qiang Chang,Junzi Jiang,Jun Cai,Quan Wang,Gaoxing Luo,Malcolm Xing,Malcolm Xing +11 more
TL;DR: Establishing a fair balance between the chemical and physical cross-linking networks together with the conductive nanostructure of polypyrrole networks leads to a double network hydrogel with bulk conductivity, mechanical and electrical self-healing properties.