Communication

Local Switching of Chemical Patterns through Light-Triggered Unfolding of Creased Hydrogel Surfaces†

  1. Jinhwan Yoon1,2,
  2. Pei Bian1,
  3. Jungwook Kim1,
  4. Thomas J. McCarthy1,
  5. Ryan C. Hayward1,*

Article first published online: 12 JUN 2012

DOI: 10.1002/anie.201202692

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 51, Issue 29, pages 7146–7149, July 16, 2012

Additional Information

How to Cite

Yoon, J., Bian, P., Kim, J., McCarthy, T. J. and Hayward, R. C. (2012), Local Switching of Chemical Patterns through Light-Triggered Unfolding of Creased Hydrogel Surfaces . Angew. Chem. Int. Ed., 51: 7146–7149. doi: 10.1002/anie.201202692

Author Information

  1. 1

    Department of Polymer Science & Engineering, University of Massachusetts, Amherst, MA 01003 (USA)

  2. 2

    Department of Chemistry, Dong-A University, Hadan2-dong, Saha-gu, Busan (Korea)

*Department of Polymer Science & Engineering, University of Massachusetts, Amherst, MA 01003 (USA)

  1. †

    This work was supported by the National Science Foundation through grant DMR-0747756 and the MRSEC on Polymers at UMass (DMR-0820506).

Publication History

  1. Issue published online: 11 JUL 2012
  2. Article first published online: 12 JUN 2012
  3. Manuscript Received: 6 APR 2012

Funded by

  • National Science Foundation. Grant Number: DMR-0747756
  • MRSEC. Grant Number: DMR-0820506

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Keywords:

  • dynamic chemical patterns;
  • micropatterns;
  • optical switching;
  • responsive gels
Thumbnail image of graphical 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.

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