Ultra‐stretchable, fast self‐healing, conductive hydrogels for writing circuits and magnetic sensor

2021 ◽  
Author(s):  
Duanli Wei ◽  
Jiaqing Zhu ◽  
Licheng Luo ◽  
Huabo Huang ◽  
Liang Li ◽  
...  
Keyword(s):  
Magnetic Sensor ◽  
Self Healing ◽  
Conductive Hydrogels

scholarly journals Irreversible and Self-Healing Electrically Conductive Hydrogels Made of Bio-Based Polymers

2022 ◽  
Vol 23 (2) ◽  
pp. 842
Author(s):  
Ahmed Ali Nada ◽  
Anita Eckstein Andicsová ◽  
Jaroslav Mosnáček
Keyword(s):  
Renewable Resources ◽  
Mechanical Stability ◽  
Conductive Polymers ◽  
Special Focus ◽  
Self Healing ◽  
Natural Polymers ◽  
Electrically Conductive ◽  
Preparation Methods ◽  
Cross Links ◽  
Conductive Hydrogels

Electrically conductive materials that are fabricated based on natural polymers have seen significant interest in numerous applications, especially when advanced properties such as self-healing are introduced. In this article review, the hydrogels that are based on natural polymers containing electrically conductive medium were covered, while both irreversible and reversible cross-links are presented. Among the conductive media, a special focus was put on conductive polymers, such as polyaniline, polypyrrole, polyacetylene, and polythiophenes, which can be potentially synthesized from renewable resources. Preparation methods of the conductive irreversible hydrogels that are based on these conductive polymers were reported observing their electrical conductivity values by Siemens per centimeter (S/cm). Additionally, the self-healing systems that were already applied or applicable in electrically conductive hydrogels that are based on natural polymers were presented and classified based on non-covalent or covalent cross-links. The real-time healing, mechanical stability, and electrically conductive values were highlighted.

A stretchable, self-healing conductive hydrogels based on nanocellulose supported graphene towards wearable monitoring of human motion

2020 ◽  
Vol 250 ◽  
pp. 116905 ◽  
Author(s):  
Chunxiao Zheng ◽  
Kaiyue Lu ◽  
Ya Lu ◽  
Sailing Zhu ◽  
Yiying Yue ◽  
...  
Keyword(s):  
Human Motion ◽  
Self Healing ◽  
Conductive Hydrogels

Ultra elastic, stretchable, self-healing conductive hydrogels with tunable optical properties for highly sensitive soft electronic sensors

2020 ◽  
Vol 8 (46) ◽  
pp. 24718-24733
Author(s):  
Meng Wu ◽  
Jingsi Chen ◽  
Yuhao Ma ◽  
Bin Yan ◽  
Mingfei Pan ◽  
...  
Keyword(s):  
Optical Properties ◽  
Human Activities ◽  
Ionic Conductor ◽  
Self Healing ◽  
Dynamic Covalent Chemistry ◽  
Highly Sensitive ◽  
Tunable Optical Properties ◽  
Conductive Hydrogels ◽  
Electronic Sensors

A self-healing hydrogel ionic conductor has been developed by combining dynamic covalent chemistry with nanofiller reinforcement and micelle crosslinking, and used for sensing of diverse human activities.

Tough, adhesive, self-healing, fully physical crosslinked κ-CG-K+/pHEAA double-network ionic conductive hydrogels for wearable sensors

Polymer ◽  
2021 ◽  
pp. 124321
Author(s):  
Jianxiong Xu ◽  
Ziyu Guo ◽  
Yin Chen ◽  
Yuecong Luo ◽  
Shaowen Xie ◽  
...  
Keyword(s):  
Wearable Sensors ◽  
Self Healing ◽  
Double Network ◽  
Conductive Hydrogels

scholarly journals Highly Stretchable and Self-Healing Strain Sensors Based on Nanocellulose-Supported Graphene Dispersed in Electro-Conductive Hydrogels

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 937 ◽  
Author(s):  
Chunxiao Zheng ◽  
Yiying Yue ◽  
Lu Gan ◽  
Xinwu Xu ◽  
Changtong Mei ◽  
...  
Keyword(s):  
Vinyl Alcohol ◽  
Cellulose Nanofibers ◽  
Strain Sensors ◽  
Gauge Factor ◽  
Poly Vinyl Alcohol ◽  
Self Healing ◽  
Composite Gels ◽  
Highly Stretchable ◽  
Conductive Hydrogels ◽  
Pva Hydrogel

Intrinsic self-healing and highly stretchable electro-conductive hydrogels demonstrate wide-ranging utilization in intelligent electronic skin. Herein, we propose a new class of strain sensors prepared by cellulose nanofibers (CNFs) and graphene (GN) co-incorporated poly (vinyl alcohol)-borax (GN-CNF@PVA) hydrogel. The borax can reversibly and dynamically associate with poly (vinyl alcohol) (PVA) and GN-CNF nanocomplexes as a cross-linking agent, providing a tough and flexible network with the hydrogels. CNFs act as a bio-template and dispersant to support GN to create homogeneous GN-CNF aqueous dispersion, endowing the GN-CNF@PVA gels with promoted mechanical flexibility, strength and good conductivity. The resulting composite gels have high stretchability (break-up elongation up to 1000%), excellent viscoelasticity (storage modulus up to 3.7 kPa), rapid self-healing ability (20 s) and high healing efficiency (97.7 ± 1.2%). Due to effective electric pathways provided by GN-CNF nanocomplexes, the strain sensors integrated by GN-CNF@PVA hydrogel with good responsiveness, stability and repeatability can efficiently identify and monitor the various human motions with the gauge factor (GF) of about 3.8, showing promising applications in the field of wearable sensing devices.

Highly Stretchable, Fast Self‐Healing, Responsive Conductive Hydrogels for Supercapacitor Electrode and Motion Sensor

2020 ◽  
Vol 305 (5) ◽  
pp. 2000018 ◽  
Author(s):  
Duanli Wei ◽  
Haonan Wang ◽  
Jiaqing Zhu ◽  
Licheng Luo ◽  
Huabo Huang ◽  
...  
Keyword(s):  
Motion Sensor ◽  
Self Healing ◽  
Supercapacitor Electrode ◽  
Highly Stretchable ◽  
Conductive Hydrogels

Self-healing conductive hydrogels: preparation, properties and applications

Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 1224-1246 ◽  
Author(s):  
Zexing Deng ◽  
Hong Wang ◽  
Peter X. Ma ◽  
Baolin Guo
Keyword(s):  
Future Development ◽  
The Self ◽  
Self Healing ◽  
Development Direction ◽  
Conductive Hydrogels

The self-healing mechanism and applications of conductive self-healing hydrogels are summarized and their future development direction is presented.

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