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Direct Current Electric Field Induced Gradient Hydrogel Actuators with Rapid Thermo-Responsive Performance as Soft Manipulators

Abstract

Abstruct: Polymeric hydrogels as biomimetic soft actuators have attracted great attentions, but the design of rapid responsive hydrogel actuators via a facile and sustainable pathway still faces great challenges. Herein, rapid thermo-responsive hydrogel actuators with high performances were fabricated by utilizing direct current (DC) electric field to induce the gradient distribution of renewable tunicate cellulose nanocrystals (TCNCs) in the poly(N-isopropylacrylamide) (PNIPAM) matrix. The spatial distribution of TCNCs that acted as both nanofillers and multifunctional cross-linkers in PNIPAM was adequately demonstrated by 3D Raman technology, which played a dominant role in the fast bending (4.8 °/s) and recovery velocity (1.4 °/s) of the corresponding hydrogel actuators. Moreover, the PNIPAM/TCNC hydrogels with excellent durability and stability could be used as potential temperature-controlled manipulators for long-term capture and transportation of targeted objects, even in harsh environment.

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Supplementary files

Article information


Submitted
22 Nov 2019
Accepted
08 Jan 2020
First published
09 Jan 2020

J. Mater. Chem. C, 2020, Accepted Manuscript
Article type
Paper

Direct Current Electric Field Induced Gradient Hydrogel Actuators with Rapid Thermo-Responsive Performance as Soft Manipulators

K. Mo, M. He, X. Cao and C. Chang, J. Mater. Chem. C, 2020, Accepted Manuscript , DOI: 10.1039/C9TC06407A

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