Application of Smart Gel Material in Flexible and Wearable Electronics

A special issue of Gels (ISSN 2310-2861). This special issue belongs to the section "Gel Applications".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 1974

Special Issue Editors


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Guest Editor
Institute of Biomedical Engineering, University of Oxford, Oxford OX3 7DQ, UK
Interests: bioelectronics; biosensors; microfabrication; thin films; implantable devices; nanogenerators; energy harvesting; drug delivery; flexible electronics; hydrogel
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Guest Editor

Special Issue Information

Dear Colleagues,

This Special Issue, entitled “Application of Smart Gel Material in Flexible and Wearable Electronics”, focuses on developing advanced gel materials for utilization in flexible and wearable electronic devices. With the growing demand for flexible and stretchable electronics, smart gel materials have emerged as promising candidates due to their distinctive properties, including flexibility, their capacity for self-healing, and electrical conductivity. This Special Issue aims to explore the recent advancements in the synthesis, characterization, and application of smart gel materials for flexible and wearable electronics.

The Special Issue discusses the synthesis and fabrication methods employed with regard to smart gel materials for flexible and wearable electronics. It also discusses the importance of gel materials in enabling the development of lightweight, stretchable, and durable electronic devices that can conform to complex shapes and withstand mechanical deformation. The Special Issue also addresses the challenges and future perspectives in the field, including developing novel gel formulations, enhancing their electrical conductivity, and optimizing their self-healing capabilities.

Overall, this Special Issue aims to provide comprehensive insights into the development of smart gel materials for flexible and wearable electronics. The research within this Special Issue will contribute to the advancement of electronic devices that can be seamlessly integrated into everyday life, enabling the widespread adoption of wearable technologies and expanding the potential applications of flexible electronics.

Dr. Massimo Mariello
Dr. Mazeyar Parvinzadeh Gashti
Guest Editors

Manuscript Submission Information

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Keywords

  • smart gel materials
  • flexible electronics
  • wearable electronics
  • gel synthesis
  • material characterization
  • electrical conductivity
  • self-healing capability
  • stretchability
  • sensor technology
  • energy harvesting

Published Papers (2 papers)

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Research

17 pages, 8476 KiB  
Article
Multi-Layer PVA-PANI Conductive Hydrogel for Symmetrical Supercapacitors: Preparation and Characterization
by Angelica Giovagnoli, Giada D’Altri, Lamyea Yeasmin, Valentina Di Matteo, Stefano Scurti, Maria Francesca Di Filippo, Isacco Gualandi, Maria Cristina Cassani, Daniele Caretti, Silvia Panzavolta, Maria Letizia Focarete, Mariangela Rea and Barbara Ballarin
Gels 2024, 10(7), 458; https://doi.org/10.3390/gels10070458 - 12 Jul 2024
Viewed by 505
Abstract
This work describes a simple, inexpensive, and robust method to prepare a flexible “all in one” integrated hydrogel supercapacitors (HySCs). Preparing smart hydrogels with high electrical conductivity, ability to stretch significantly, and excellent mechanical properties is the last challenge for tailored wearable devices. [...] Read more.
This work describes a simple, inexpensive, and robust method to prepare a flexible “all in one” integrated hydrogel supercapacitors (HySCs). Preparing smart hydrogels with high electrical conductivity, ability to stretch significantly, and excellent mechanical properties is the last challenge for tailored wearable devices. In this paper, we employed a physical crosslinking process that involves consecutive freezing and thawing cycles to prepare a polyvinyl alcohol (PVA)-based hydrogel. Exploiting the self-healing properties of these materials, the assembly of the different layers of the HySCs has been performed. The ionic conductivity within the electrolyte layer arises from the inclusion of an H2SO4 solution in the hydrogel network. Instead, the electronic conductivity is facilitated by the addition of the conductive polymer PANI-PAMPSA into the hydrogel layers. Electrochemical measures have highlighted newsworthy properties related to our HySCs, opening their use in wearable electronic applications. Full article
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19 pages, 8121 KiB  
Article
Eco-Friendly Production of Polyvinyl Alcohol/Carboxymethyl Cellulose Wound Healing Dressing Containing Sericin
by Massimo Mariello, Enrico Binetti, Maria Teresa Todaro, Antonio Qualtieri, Virgilio Brunetti, Pietro Siciliano, Massimo De Vittorio and Laura Blasi
Gels 2024, 10(6), 412; https://doi.org/10.3390/gels10060412 - 20 Jun 2024
Viewed by 856
Abstract
Wound dressing production represents an important segment in the biomedical healthcare field, but finding a simple and eco-friendly method that combines a natural compound and a biocompatible dressing production for biomedical application is still a challenge. Therefore, the aim of this study is [...] Read more.
Wound dressing production represents an important segment in the biomedical healthcare field, but finding a simple and eco-friendly method that combines a natural compound and a biocompatible dressing production for biomedical application is still a challenge. Therefore, the aim of this study is to develop wound healing dressings that are environmentally friendly, low cost, and easily produced, using natural agents and a physical crosslinking technique. Hydrogel wound healing dressings were prepared from polyvinyl alcohol/carboxymethyl cellulose and sericin using the freeze–thawing method as a crosslinking method. The morphological characterization was carried out by scanning electron microscopy (SEM), whereas the mechanical analysis was carried out by dynamic mechanical analysis (DMA) to test the tensile strength and compression properties. Then, the healing property of the wound dressing material was tested by in vitro and ex vivo tests. The results show a three-dimensional microporous structure with no cytotoxicity, excellent stretchability with compressive properties similar to those of human skin, and excellent healing properties. The proposed hydrogel dressing was tested in vitro with HaCaT keratinocytes and ex vivo with epidermal tissues, demonstrating an effective advantage on wound healing acceleration. Accordingly, this study was successful in developing wound healing dressings using natural agents and a simple and green crosslinking method. Full article
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