An impedimetric aptasensor for ultrasensitive detection of Penicillin G based on the use of reduced graphene oxide and gold nanoparticles.

本文报道了一种基于还原氧化石墨烯(RGO)和金纳米颗粒(GNPs)修饰铅笔石墨电极(PGE)的阻抗法适配体传感器，用于超灵敏检测重要抗生素青霉素G(PEN)。作者采用扫描电子显微镜(SEM)和傅里叶变换红外光谱(FTIR)表征了裸PGE、RGO/PGE、GNP/RGO/PGE的形貌及GO/RGO官能团变化，并通过循环伏安法(CV)优...