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Glycopolymer-Based Antiswelling, Conductive, and Underwater Adhesive Hydrogels for Flexible Strain Sensor Application.

Authors :
Ye B
Ma Y
Zhang D
Gu J
Wang Z
Zhang Y
Chen J
Source :
ACS biomaterials science & engineering [ACS Biomater Sci Eng] 2023 Dec 11; Vol. 9 (12), pp. 6891-6901. Date of Electronic Publication: 2023 Nov 27.
Publication Year :
2023

Abstract

With the fast development of soft electronics, underwater adhesion has become a highly desired feature for various sensing uses. Currently, most adhesive hydrogels are based on catechol-based structures, such as polydopamine, pyrogallol, and tannic acid, with very limited structural variety. Herein, a new type of glycopolymer-based underwater adhesive hydrogel has been prepared straightforwardly by random copolymerization of acrylic acid, acetyl-protected/unprotected glucose, and methacrylic anhydride in dimethyl sulfoxide (DMSO). By employing a DMSO-water solvent exchange strategy, the underwater adhesion was skillfully induced by the synergetic effects of hydrophobic aggregation and hydrogen bonding, leading to excellent adhesion behaviors on various surfaces, including pig skins, glasses, plastics, and metals, even after 5 days of storage in water. In addition, the underwater adhesive hydrogels with simple and low-cost protected/unprotected carbohydrate compositions showed good mechanical and rheological properties, together with cytocompatibility and antiswelling behavior in water, all of which are beneficial for underwater adhesions. In application as a flexible strain sensor, the adhesive hydrogel exhibited stable and reliable sensing ability for monitoring human motion in real time, suggesting great potential for intelligent equipment design.

Details

Language :
English
ISSN :
2373-9878
Volume :
9
Issue :
12
Database :
MEDLINE
Journal :
ACS biomaterials science & engineering
Publication Type :
Academic Journal
Accession number :
38013423
Full Text :
https://doi.org/10.1021/acsbiomaterials.3c01539