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Self-healing ionic gelatin/glycerol hydrogels for strain sensing applications

Published version
Peer-reviewed

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Authors

George Thuruthel, Thomas 
Iida, Fumiya 

Abstract

jats:titleAbstract</jats:title>jats:pSoft 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:italicR</jats:italic>jats:sup2</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>

Description

Keywords

Article, /639/166/987, /639/301/923/1027, /128, /129, /120, /139, /141, article

Journal Title

NPG Asia Materials

Conference Name

Journal ISSN

1884-4049
1884-4057

Volume Title

14

Publisher

Springer Science and Business Media LLC
Sponsorship
RCUK | Engineering and Physical Sciences Research Council (EPSRC) (EP/R513180/1)
European Commission (EC) (828818, 828818, 828818)