Self-healing ionic gelatin/glycerol hydrogels for strain sensing applications
Publication Date
2022-12Journal Title
NPG Asia Materials
ISSN
1884-4049
Publisher
Springer Science and Business Media LLC
Volume
14
Issue
1
Language
en
Type
Article
This Version
VoR
Metadata
Show full item recordCitation
Hardman, D., George Thuruthel, T., & Iida, F. (2022). Self-healing ionic gelatin/glycerol hydrogels for strain sensing applications. NPG Asia Materials, 14 (1) https://doi.org/10.1038/s41427-022-00357-9
Abstract
<jats:title>Abstract</jats:title><jats:p>Soft sensing technologies have the potential to revolutionize wearable devices, haptic interfaces and robotic systems. However, there are numerous challenges in the deployment of these devices due to their poor resilience, high energy consumption, and omnidirectional strain responsivity. This work reports the development of a versatile ionic gelatin-glycerol hydrogel for soft sensing applications. The resulting sensing device is inexpensive and easy to manufacture, is self-healable at room temperature, can undergo strains of up to 454%, presents stability over long periods of time, and is biocompatible and biodegradable. This material is ideal for strain sensing applications, with a linear correlation coefficient <jats:italic>R</jats:italic><jats:sup>2</jats:sup> = 0.9971 and a pressure-insensitive conduction mechanism. The experimental results show the applicability of ionic hydrogels for wearable devices and soft robotic technologies for strain, humidity, and temperature sensing while being able to partially self-heal at room temperature.</jats:p>
Keywords
Article, /639/166/987, /639/301/923/1027, /128, /129, /120, /139, /141, article
Sponsorship
RCUK | Engineering and Physical Sciences Research Council (EPSRC) (EP/R513180/1)
European Commission (EC) (828818, 828818, 828818)
Identifiers
s41427-022-00357-9, 357
External DOI: https://doi.org/10.1038/s41427-022-00357-9
This record's URL: https://www.repository.cam.ac.uk/handle/1810/334203
Rights
Licence:
http://creativecommons.org/licenses/by/4.0/
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