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Synthetic polymers offer a wealth of opportunities to design
responsive materials triggered by external stimuli. Changingthe
length, chemical composition, architecture, and topology ofthe chains
allows response mechanisms and rates to be easily manipulated;and
devices based on the entropy of the chains, surface energies,and
specific segmental interactions can readily be made. Althoughnumerous
applications exist, intriguing possibilities are emergingthat have
tremendous potential to further developments in surface-responsivematerials.
Polymer Science and Engineering Department, University of
Massachusetts, Amherst, MA 01003, USA.
J. Lahann, S. Mitragotri, T.-N. Tran, H. Kaido, J. Sundaram, I. S. Choi, S. Hoffer, G. A. Somorjai, and R. Langer (2003)
Science
299, 371-374
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