Local switching of chemical patterns through light-triggered unfolding of creased hydrogel surfaces

Jinhwan Yoon; Pei Bian; Jungwook Kim; Thomas J. McCarthy; Ryan C. Hayward

doi:10.1002/anie.201202692

Local switching of chemical patterns through light-triggered unfolding of creased hydrogel surfaces

Jinhwan Yoon, Pei Bian, Jungwook Kim, Thomas J. McCarthy, Ryan C. Hayward

Department of Chemical Engineering

University of Massachusetts

Research output: Contribution to journal › Article › peer-review

81 Scopus citations

Abstract

Visible light induces switching of surface chemical patterns based on hybrid gels of thermally responsive poly(N-isopropyl acrylamide) copolymer networks containing iron oxide nanoparticles. The swelling of these hybrid gels is reduced upon illumination (see picture), allowing controlled unfolding of creased features formed owing to an elastic surface instability.

Original language	English
Pages (from-to)	7146-7149
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	51
Issue number	29
DOIs	https://doi.org/10.1002/anie.201202692
State	Published - 16 Jul 2012

Keywords

Dynamic chemical patterns
Micropatterns
Optical switching
Responsive gels

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10.1002/anie.201202692

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title = "Local switching of chemical patterns through light-triggered unfolding of creased hydrogel surfaces",

abstract = "Visible light induces switching of surface chemical patterns based on hybrid gels of thermally responsive poly(N-isopropyl acrylamide) copolymer networks containing iron oxide nanoparticles. The swelling of these hybrid gels is reduced upon illumination (see picture), allowing controlled unfolding of creased features formed owing to an elastic surface instability.",

keywords = "Dynamic chemical patterns, Micropatterns, Optical switching, Responsive gels",

author = "Jinhwan Yoon and Pei Bian and Jungwook Kim and McCarthy, {Thomas J.} and Hayward, {Ryan C.}",

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AU - Yoon, Jinhwan

AU - Bian, Pei

AU - Kim, Jungwook

AU - McCarthy, Thomas J.

AU - Hayward, Ryan C.

PY - 2012/7/16

Y1 - 2012/7/16

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AB - Visible light induces switching of surface chemical patterns based on hybrid gels of thermally responsive poly(N-isopropyl acrylamide) copolymer networks containing iron oxide nanoparticles. The swelling of these hybrid gels is reduced upon illumination (see picture), allowing controlled unfolding of creased features formed owing to an elastic surface instability.

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KW - Micropatterns

KW - Optical switching

KW - Responsive gels

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JO - Angewandte Chemie - International Edition

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Local switching of chemical patterns through light-triggered unfolding of creased hydrogel surfaces

Abstract

Keywords

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