Issue 13, 2020

Tunable swelling and deswelling of temperature- and light-responsive graphene oxide-poly(N-isopropylacrylamide) composite hydrogels

Abstract

Tunable swelling and deswelling behaviors of graphene oxide-poly(N-isopropylacrylamide) (GO-PNIPAM) composite hydrogels are demonstrated by controlling the internal microstructures and the rate of the external temperature change. The different internal microstructures of GO-PNIPAM composite hydrogels as a function of concentrations of GO and chemical crosslinkers explain their different swelling and deswelling ratios. Furthermore, the light-driven shape deformation of GO-PNIPAM is demonstrated by utilizing the photothermal properties of GO. This approach offers promise for light and temperature-responsive actuators and sensors, and biomedical applications.

Graphical abstract: Tunable swelling and deswelling of temperature- and light-responsive graphene oxide-poly(N-isopropylacrylamide) composite hydrogels

Supplementary files

Article information

Article type
Communication
Submitted
26 déc. 2019
Accepted
01 mars 2020
First published
04 mars 2020

Polym. Chem., 2020,11, 2332-2338

Author version available

Tunable swelling and deswelling of temperature- and light-responsive graphene oxide-poly(N-isopropylacrylamide) composite hydrogels

M. Li and J. Bae, Polym. Chem., 2020, 11, 2332 DOI: 10.1039/C9PY01934K

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