A highly sensitive immunosensor based on ITO thin films covered by a new semi-conductive conjugated polymer for the determination of TNFα in human saliva and serum samples.
本研究构建了一种新型超灵敏阻抗免疫传感器,用于检测肿瘤坏死因子α(TNFα)。该传感器以含大量羧基的共轭聚合物聚(3-噻吩乙酸)(P3)作为固定化基质,通过酯键连接于羟基化氧化铟锡(ITO)表面,进而利用EDC/NHS化学共价固定抗TNFα抗体。循环伏安法(CV)和电化学阻抗谱(EIS)用于监测ITO电极修饰过程及抗体-抗原相互作用...