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Multiresponsive Surfaces Change Between Superhydrophilicity and Superhydrophobicity


  • The authors thank the National Nature Science Foundation of China (20125102, 90306011, 20421101) and the Innovation Foundation of the Chinese Academy of Sciences for continuing financial support, and gratefully acknowledge the Chinese Academy of Sciences. The authors thank Prof. Wu Chi (Department of Chemistry, the Chinese University of Hong Kong, Shatin, N. T., Hong Kong) for beneficial discussions. Supporting Information is available online from Wiley InterScience or from the authors.


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Surfaces that respond to multiple stimuli may be well-suited for drug delivery applications. Here, such a surface is prepared by coating a silicon wafer with a block copolymer comprising a pH/glucose- and a temperature-sensitive block. The figure shows how the multiresponsive surfaces work in response to glucose concentration at pH 7.4 and at a temperature of 26 °C. Under these conditions the surface shows a reversible change from superhydrophobic to superhydrophilic.

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