适用于细菌印迹传感的聚吡咯/黑磷复合薄膜的制备及性能研究  

Preparation of PPy/BP composite film and its performance suitable for bacterial imprinting sensing

作　　者：朱敏 王欧兰 贾晓妍 张俊玲[2] 吴继魁[1,3,4] Zhu Min;Wang Oulan;Jia Xiaoyan;Zhang Junling;Wu Jikui(College of Food Science and Technology,Shanghai Ocean University,Shanghai 201306;Key Laboratory of Freshwater Aquatic Genetic Resources,Ministry of Agriculture and Rural Affairs,Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources,Ministry of Education,Shanghai 201306;Shanghai Engineering Research Center of Aquatic-Product Processing&Preservation,Shanghai 201306;Laboratory of Quality and Safety Risk Assessment for Aquatic Product on Storage and Preservation(Shanghai),Ministry of Agriculture and Rural Affairs,Shanghai 201306)

机构地区：[1]上海海洋大学食品学院,上海201306 [2]上海海洋大学农村农业部淡水水产种质资源重点实验室,水产种质资源发掘与利用教育部重点实验室,上海201306 [3]上海水产品加工及贮藏工程技术研究中心,上海201306 [4]农业部水产品贮藏保鲜质量安全风险评估实验室(上海),上海201306

出　　处：《化工新型材料》2022年第8期92-95,共4页New Chemical Materials

基　　金：国家自然科学基金(31972772);上海自然科学基金项目(11ZR415400)。

摘　　要：导电聚合物具有优异的导电性能和生物相容性,是制备细菌印迹传感器的关键材料。利用循环伏安法在玻碳电极表面一步原位聚合制备了一种新型掺杂有黑磷(BP)的聚吡咯复合薄膜(PPy/BP)。采用扫描电镜(SEM)、X射线光电子能谱(XPS)等手段表征其表面形貌和化学成分,通过循环伏安曲线和交流阻抗图谱研究PPy/BP的电化学性能,并考察其环境稳定性及防污性能。结果表明:PPy/BP呈现出平滑、疏松、纳米颗粒状的形貌,其界面阻抗仅为PPy的15%,说明BP掺杂大大提高了PPy的导电能力。PPy的包覆有效地保护了易被氧化的黑磷,室温放置15d, PPy/BP的阻抗几乎不变,说明PPy/BP具有良好的环境稳定性;PPy/BP对BSA的非特异性吸附很少,意味着PPy/BP具有良好的防污性能,因此,PPy/BP是一种适用于构建细菌印迹传感器的优异复合材料。Owing to their excellent electrical conductivity and biocompatibility, conductive polymers are one of the key materials for preparing bacterial imprinting sensors.A new type of polypyrrole composite film doped with black phosphorus(PPy/BP) was prepared by one-step in-situ polymerization on the surface of glassy carbon electrode by cyclic voltammetry.SEM and XPS were used to characterize its surface morphology and chemical composition.The electrochemical performance, environmental stability and antifouling performance of PPy/BP were investigated by cyclic voltammetry curve and AC impedance spectroscopy.The results showed that PPy/BP presented smooth, loose, nano-particle morphology, and its interface impedance was only 15% of PPy, indicating that BP doping greatly improved the conductivity of PPy.The PPy coating effectively protected the BP that was easily oxidized.After 15 days at room temperature, the impedance of PPy/BP was almost unchanged, indicating that PPy/BP had good environmental stability.PPy/BP had very little non-specific adsorption to BSA,meaning that PPy/BP had good antifouling performance.The above results indicated that PPy/BP was promising composite material suitable for constructing bacterial imprinting sensors.

关 键 词：聚吡咯 黑磷 复合材料 细菌印迹 

分 类 号：TB332[一般工业技术—材料科学与工程]