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    Combining Host−Guest Systems with Nonfouling Material for the Fabrication of a Biosurface: Toward Nearly Complete and Reversible Resistance of Cytochrome c

    Year: 2010

    Journal: Langmuir, 2010, 26 (15), pp 12515–12517, 20101201

    Authors: Wan P. †, Chen Y. ‡, Xing†, Chi L. ‡, Zhang X.*†

    Last authors: Xi Zhang

    Organizations: † Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084, PR China ‡ Physikalisches Institut, Westfälische Wilhelms Universität, 48149 Münster, Germany

    Country: China

    In this letter, a pH-responsive reactivated biointerface is fabricated using an inclusion reaction between an azobenzene-containing self-assembled monolayer and pH-responsive poly(ethylene glycol)-block-poly(acrylic acid) grafted with cyclodextrins. The pH-responsive interface can be switched between an extended state and a relaxed state for the reversible resistance of cytochrome c adsorption completely in cooperation with protein-resistant poly(ethylene glycol).