Controllable Protein Adsorption and Bacterial Adhesion on Polypyrrole Nanocone Arrays
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2016年第9期
论文作者：Zhengnan Zhou Weiping Li Tianrui He Peng Yu Guoxin Tan Chengyun Ning
文章页码：950 - 955
摘 要：In this research, polypyrrole nanocone arrays doped with β-Naphthalene sulphonic acid（PPy-NSA） were built. This film was expected to control protein adsorption and bacterial adhesion by potential-induced reversibly redox. The scanning Kelvin probe microscopy（SKPM） and surface contact angles（SCA） tests suggested that the surface potential and wettability of PPy-NSA nanocone arrays could be controlled by simply controlling its redox property via applying potential. The controllable surface potential and wettability in return controlled the adsorption of protein and adhesion of bacteria. The proposed material might find application in the preparation of smart biomaterial surfaces that can regulate proteins and bacterial adhesion by a simple potential switching.
Zhengnan Zhou1,2，Weiping Li1,2，Tianrui He1,2，Peng Yu1,2，Guoxin Tan3，Chengyun Ning1,2
1. School of Materials Science and Engineering, South China University of Technology2. Guangdong Key Laboratory of Biomedical Sciences and Engineering, South China University of Technology3. School of Chemical Engineering and Light Industry, Guangdong University of Technology
摘 要：In this research, polypyrrole nanocone arrays doped with β-Naphthalene sulphonic acid（PPy-NSA） were built. This film was expected to control protein adsorption and bacterial adhesion by potential-induced reversibly redox. The scanning Kelvin probe microscopy（SKPM） and surface contact angles（SCA） tests suggested that the surface potential and wettability of PPy-NSA nanocone arrays could be controlled by simply controlling its redox property via applying potential. The controllable surface potential and wettability in return controlled the adsorption of protein and adhesion of bacteria. The proposed material might find application in the preparation of smart biomaterial surfaces that can regulate proteins and bacterial adhesion by a simple potential switching.
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