Department of Polymer Science & Engineering, University of Massachusetts, Amherst, MA 01003, USA.
Angew Chem Int Ed Engl. 2012 Jul 16;51(29):7146-9. doi: 10.1002/anie.201202692. Epub 2012 Jun 12.
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.
可见光诱导基于包含氧化铁纳米粒子的热响应性聚(N-异丙基丙烯酰胺)共聚物网络的混合凝胶表面化学图案的切换。这些混合凝胶在光照下的溶胀减小(见图),从而允许控制由于弹性表面不稳定性而形成的褶皱特征的展开。