Conductive Gels

A special issue of Gels (ISSN 2310-2861).

Deadline for manuscript submissions: closed (25 February 2022) | Viewed by 3304

Special Issue Editors


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Guest Editor
Department of Chemistry, Indian Institute of Technology, Hyderabad 502205, India
Interests: supramolecular gels; co-assembly; conductive polymers; tissue engineering
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Guest Editor
POLYMAT - Basque Center for Macromolecular Design & Engineering (UPV/EHU) Avenida de Tolosa, 72 20018 San Sebastián, Spain
Interests: multilayer films and hydrogels for biomedical applications; supramolecular peptide hydrogels; conducting polymers and peptides
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Conductive gels are a special class of soft materials. They harness the 3D micro/nanostructures of gels with the electrical and optical properties of semiconductors, producing excellent novel attributes, like the formation of an intrinsic network of conducting micro/nanostructures that facilitates the easy movement of charge carriers. Conductive gels encompass interesting properties, like adhesion, porosity and swelling, and good mechanical properties compared to those of bulk conducting polymers. The porous structure of the gels allows the easy diffusion of ions and molecules and the swelling nature provides effective interface between molecular chains and solution phases, whereas good mechanical properties enable their practical applications. Due to these excellent assets, conductive gels are promising candidates for applications like energy conversion and storage, sensors, medical and bio-devices, actuators, superhydrophobic coatings, etc.

The objective of this Special Issue on “Conductive gels” is to assemble different scientific minds working in this field to enrich young researchers. Herein, we aim to publish research articles and reviews on “Conductive gels”, discussing their preparation, gelation mechanism, self-healing properties, micro-patterning, and applications, ranging from electronics to biomaterial design. We hope that this Special Issue will be successful in providing cutting edge research in this intriguing field.

Dr. Priyadarshi Chakraborty
Dr. Miryam Criado-Gonzalez
Guest Editors

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Keywords

  • Conductive gels
  • Conductive polymer hydrogels
  • Ionogels
  • Self-healing properties
  • Conductive
  • biomaterials
  • Energy storage
  • Energy conversion

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Published Papers (1 paper)

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Research

11 pages, 3107 KiB  
Article
Effect of Vibrations, Displacement, Pressure, Temperature and Humidity on the Resistance and Impedance of the Shockproof Resistors Based on Rubber and Jelly (NiPc–CNT–Oil) Composites
by Muhammad Tariq Saeed Chani, Khasan S. Karimov, Abdullah M. Asiri, Mohammed M. Rahman and Tahseen Kamal
Gels 2022, 8(4), 226; https://doi.org/10.3390/gels8040226 - 7 Apr 2022
Viewed by 2327
Abstract
Here, we present the design, fabrication and characterization of shockproof rubber–jelly (NiPc–CNT–oil) composite-based resistors. To fabricate the resistors, gels of CNT and NiPc with edible oil were prepared and deposited on a flexible rubber substrate using rubbing-in technique. The devices’ resistance and impedance [...] Read more.
Here, we present the design, fabrication and characterization of shockproof rubber–jelly (NiPc–CNT–oil) composite-based resistors. To fabricate the resistors, gels of CNT and NiPc with edible oil were prepared and deposited on a flexible rubber substrate using rubbing-in technique. The devices’ resistance and impedance were investigated under the effect of pressure, displacement, humidity, temperature and mechanical vibrations. The resistance and the impedance decreased, on average, by 1.08 times under the effect of pressure (up to 850 gf/cm2) and by 1.04 times under the effect of displacement (up to 50 µm). Accordingly, upon increasing the humidity from 60% to 90% RH, the resistance and impedance decreased by up to 1.04 times, while upon increasing the temperature from 25 °C to 43 °C, the resistance and impedances also decreased by up to 1.05 times. Moreover, under the effect of vibration, a decrease in resistance and impedance, by up to 1.03 times, was observed. The investigated samples can potentially be used as prototypes for the development of shockproof jelly electronic-based devices in particular resistors. The technological achievement in the fabrication of these devices is the use of edible organic oil, which allows for the fabrication of uniform jelly films of organic materials that cannot be realized simply by mixing “dry” ingredients. Especially, we highlight that edible organic oil is environmentally friendly, unlike some other inorganic oils that are used in practice. Full article
(This article belongs to the Special Issue Conductive Gels)
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