Mechanical, adhesive and self-healing ionic liquid hydrogels for electrolytes and flexible strain sensors

2020 ◽  
Vol 8 (32) ◽  
pp. 11119-11127 ◽  
Author(s):  
Zijian Gao ◽  
Lingshu Kong ◽  
Rining Jin ◽  
Xin Liu ◽  
Wei Hu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Strain Sensors ◽  
Self Healing ◽  
Flexible Sensor ◽  
Conductive Properties

The prepared ionic liquid hydrogel was employed as flexible sensor and electrolyte with great mechanical, self-healing, adhesive and conductive properties.

scholarly journals Dynamic Nanohybrid-Polysaccharide Hydrogels for Soft Wearable Strain Sensing

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3574
Author(s):  
Pejman Heidarian ◽  
Hossein Yousefi ◽  
Akif Kaynak ◽  
Mariana Paulino ◽  
Saleh Gharaie ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Strain Sensors ◽  
Self Healing ◽  
Nano Materials ◽  
Strain Sensing ◽  
Ferric Ions ◽  
Research Activity ◽  
Adhesion Properties ◽  
High Mechanical Strength ◽  
The Moment

Electroconductive hydrogels with stimuli-free self-healing and self-recovery (SELF) properties and high mechanical strength for wearable strain sensors is an area of intensive research activity at the moment. Most electroconductive hydrogels, however, consist of static bonds for mechanical strength and dynamic bonds for SELF performance, presenting a challenge to improve both properties into one single hydrogel. An alternative strategy to successfully incorporate both properties into one system is via the use of stiff or rigid, yet dynamic nano-materials. In this work, a nano-hybrid modifier derived from nano-chitin coated with ferric ions and tannic acid (TA/Fe@ChNFs) is blended into a starch/polyvinyl alcohol/polyacrylic acid (St/PVA/PAA) hydrogel. It is hypothesized that the TA/Fe@ChNFs nanohybrid imparts both mechanical strength and stimuli-free SELF properties to the hydrogel via dynamic catecholato-metal coordination bonds. Additionally, the catechol groups of TA provide mussel-inspired adhesion properties to the hydrogel. Due to its electroconductivity, toughness, stimuli-free SELF properties, and self-adhesiveness, a prototype soft wearable strain sensor is created using this hydrogel and subsequently tested.

Highly viscoelastic, stretchable, conductive, and self-healing strain sensors based on cellulose nanofiber-reinforced polyacrylic acid hydrogel

Cellulose ◽  
2021 ◽  
Vol 28 (7) ◽  
pp. 4295-4311
Author(s):  
Yue Jiao ◽  
Kaiyue Lu ◽  
Ya Lu ◽  
Yiying Yue ◽  
Xinwu Xu ◽  
...  
Keyword(s):  
Polyacrylic Acid ◽  
Strain Sensors ◽  
Cellulose Nanofiber ◽  
Self Healing

Enhanced sensing performance of carboxyl graphene–ionic liquid attached ionic polymer–metal nanocomposite based polymer strain sensors

2018 ◽  
Vol 6 (31) ◽  
pp. 8395-8404 ◽  
Author(s):  
Varij Panwar ◽  
Gopinathan Anoop
Keyword(s):  
Ionic Liquid ◽  
Sulfonic Acid ◽  
Strain Sensors ◽  
Ionic Polymer ◽  
Blend Membrane ◽  
Acidic Ionic Liquid ◽  
Bending Strain ◽  
Polymer Metal ◽  
Polystyrene Sulfonic Acid ◽  
Metal Nanocomposite

Here, we show that biocompatible IPMNC sensors based on a carboxyl graphene–acidic ionic liquid–polyvinylpyrrolidone–polystyrene sulfonic acid ionic blend membrane can generate a high sensing current (6 mA cm−2) with a bending strain of 0.009.

Self‐Healing Hydrogels as Flexible Sensor for Human Motion Monitoring

2021 ◽  
Vol 6 (40) ◽  
pp. 11130-11136
Author(s):  
Huicheng Tang ◽  
Beibei Kang ◽  
Yueyun Li ◽  
Zengdian Zhao ◽  
Shasha Song
Keyword(s):  
Human Motion ◽  
Self Healing ◽  
Flexible Sensor ◽  
Human Motion Monitoring

Preparation of Supramolecular Ionic Liquid Gels Based on Host–Guest Interactions and Their Swelling and Ionic Conductive Properties

2019 ◽  
Vol 52 (8) ◽  
pp. 2932-2938 ◽  
Author(s):  
Garry Sinawang ◽  
Yuichiro Kobayashi ◽  
Yongtai Zheng ◽  
Yoshinori Takashima ◽  
Akira Harada ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Conductive Properties

Low temperature tolerant, ultrasensitive strain sensors based on self-healing hydrogel for self-monitor of human motion

2019 ◽  
Vol 257 ◽  
pp. 116177 ◽  
Author(s):  
Shengping Dai ◽  
Xinghao Hu ◽  
Xiuzhu Xu ◽  
Xiaoting Cao ◽  
Yuewen Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
Human Motion ◽  
Strain Sensors ◽  
Self Healing
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