Strain sensors based on conducting poly(acrylamide) hydrogels

MRS Advances ◽  
2020 ◽  
Vol 5 (17) ◽  
pp. 917-925
Author(s):  
Matthias Künzel ◽  
Marc in het Panhuis
Keyword(s):  
Electrical Impedance ◽  
Mechanical Strain ◽  
Impedance Analysis ◽  
Strain Sensors ◽  
Carbon Fibres ◽  
Impedance Response ◽  
Simple Model System ◽  
Highly Stretchable ◽  
Resistive Component ◽  
Poly Acrylamide

ABSTRACTA simple model system towards an impedance-probing strain sensor based on conducting tough hydrogels is demonstrated. A poly(acrylamide) hydrogel, cross-linked with N,N’-methylene-bis(acrylamide) was contacted with carbon fibres for electrical impedance analysis. The conductivity of the salt-containing hydrogel was determined to be 114 ± 10 mS/cm. Upon stretching the hydrogel samples to their fourfold initial length, the impedance response increased according to a power law. This was used to establish a sensing equation for the relation between the resistive component of the impedance signal and the applied mechanical strain under tension. This work contributes to the development of highly stretchable and soft strain sensors for applications in soft robotics.

scholarly journals Carbon fibres reinforced composites. Electrical impedance analysis: a gateway to smartness

2020 ◽  
Vol 11 (4) ◽  
pp. 417-430
Author(s):  
Philippe Margueres ◽  
Philippe Olivier ◽  
Mahamadou Mounkaila ◽  
Sonia Sassi ◽  
Thierry Camps
Keyword(s):  
Electrical Impedance ◽  
Impedance Analysis ◽  
Reinforced Composites ◽  
Carbon Fibres

MXene-composited highly stretchable, sensitive and durable hydrogel for flexible strain sensors

2020 ◽  
Author(s):  
Wei Yuan ◽  
Xinyu Qu ◽  
Yao Lu ◽  
Wen Zhao ◽  
Yanfang Ren ◽  
...  
Keyword(s):  
Strain Sensors ◽  
Highly Stretchable

Highly stretchable and ultrathin nanopaper composites for epidermal strain sensors

2018 ◽  
Vol 29 (35) ◽  
pp. 355304 ◽  
Author(s):  
Jingyao Sun ◽  
Yanan Zhao ◽  
Zhaogang Yang ◽  
Jingjing Shen ◽  
Eusebio Cabrera ◽  
...  
Keyword(s):  
Strain Sensors ◽  
Highly Stretchable

Highly Stretchable Core–Sheath Fibers via Wet-Spinning for Wearable Strain Sensors

2018 ◽  
Vol 10 (7) ◽  
pp. 6624-6635 ◽  
Author(s):  
Zhenhua Tang ◽  
Shuhai Jia ◽  
Fei Wang ◽  
Changsheng Bian ◽  
Yuyu Chen ◽  
...  
Keyword(s):  
Strain Sensors ◽  
Wet Spinning ◽  
Highly Stretchable

Celery Electronics

MRS Advances ◽  
2020 ◽  
Vol 5 (16) ◽  
pp. 847-853
Author(s):  
Rhiannon Morris ◽  
Holly Warren ◽  
Marc in het Panhuis
Keyword(s):  
Heavy Metal ◽  
Conducting Polymers ◽  
Conducting Polymer ◽  
Energy Production ◽  
Electrical Impedance ◽  
Vascular System ◽  
Impedance Analysis ◽  
Living System ◽  
Electronic Circuits ◽  
Heavy Metal Waste

ABSTRACTPlants produce energy in a sustainable way, they are very effective in converting light energy into a useable form. Utilising certain parts of plants in technology could become an efficient way to enhance energy production and improve sustainability. Integrating plants with technology would offer a ‘green’ way of producing elements for electronic circuits and reduce heavy metal waste. In this paper, we demonstrate that conducting polymers can be incorporated into living system such as celery. Electrical impedance analysis was used to establish the conductivity of celery with a conducting polymer (PEDOT:PSS) into its vascular system. It was demonstrated that electronic celery exhibited conductivity values of up to 0.55 ± 0.03 S/cm. This conductivity value was sufficient to demonstrate the potential of celery electronics where celery stalks are used as electrodes in simple circuits.

Highly stretchable and sensitive strain sensors based on carbon nanotube–elastomer nanocomposites: the effect of environmental factors on strain sensing performance

2020 ◽  
Vol 8 (18) ◽  
pp. 6185-6195 ◽  
Author(s):  
Mohammad Nankali ◽  
Norouz Mohammad Nouri ◽  
Mahdi Navidbakhsh ◽  
Nima Geran Malek ◽  
Mohammad Amin Amindehghan ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Environmental Factors ◽  
Environmental Parameters ◽  
Strain Sensors ◽  
Sensitive Strain ◽  
Effect Of Temperature ◽  
Strain Sensing ◽  
Highly Stretchable ◽  
The Impact ◽  
Sensing Performance

The impact of environmental parameters on the sensing behavior of carbon nanotube–elastomer nanocomposite strain sensors has been investigated, revealing significant effect of temperature and humidity variations on the sensing performance.

Highly Stretchable and Sensitive SBS/Graphene Composite Fiber for Strain Sensors

2020 ◽  
Vol 305 (3) ◽  
pp. 1900736 ◽  
Author(s):  
Wenyue Li ◽  
Yanfen Zhou ◽  
Yuhao Wang ◽  
Ying Li ◽  
Liang Jiang ◽  
...  
Keyword(s):  
Composite Fiber ◽  
Strain Sensors ◽  
Graphene Composite ◽  
Highly Stretchable

Role of direct and inverted undoped spiro-OMeTAD–perovskite architectures in determining solar cells performances: an investigation via electrical impedance spectroscopy

2019 ◽  
Vol 21 (12) ◽  
pp. 6613-6621 ◽  
Author(s):  
Marianna Ambrico ◽  
Paolo F. Ambrico ◽  
Luisa De Marco ◽  
Rosabianca Iacobellis ◽  
Arianna D’Abramo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Impedance Spectroscopy ◽  
Electrical Impedance ◽  
Electrical Impedance Spectroscopy ◽  
Impedance Response ◽  
Inverse Structure

Spiro-OMeTAD/perovskite direct and inverse structure architectures’ influence on the performance of solar cells are elucidated via the analysis of the structure impedance response.

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