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Local Switching of Chemical Patterns through Light‐Triggered Unfolding of Creased Hydrogel Surfaces
Author(s) -
Yoon Jinhwan,
Bian Pei,
Kim Jungwook,
McCarthy Thomas J.,
Hayward Ryan C.
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201202692
Subject(s) - copolymer , nanoparticle , oxide , swelling , materials science , dependency (uml) , computer science , nanotechnology , chemistry , polymer , composite material , artificial intelligence , organic chemistry
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.