Anti-EpCAM modified LC-SPDP monolayer on gold microelectrode based electrochemical biosensor for MCF-7 cells detection.

本研究在直径500 μm的金微电极表面制备琥珀酰亚胺6-(3-[2-吡啶二硫代]丙酰胺)己酸酯（LC-SPDP）自组装单分子层，用于共价固定抗EpCAM抗体。抗体氨基与LC-SPDP的琥珀酰亚胺基团形成酰胺键，未反应基团用1%乙醇胺封闭。通过循环伏安法和荧光成像表征电极修饰过程。将anti-EpCAM/LC-SPDP/Au电极暴露于...