Yanwei Wang, Dongdong Ma, Gaiping Zhang, Xuannian Wang, Jingming Zhou, Yumei Chen, Xiaojuan You, Chao Liang, Yanhua Qi, Yuya Li, Aiping Wang
A sensitive electrochemical immunosensor was prepared for rapid detection of ASA based on arsanilic acid (ASA) monoclonal antibody with high affinity. In the preparation of nanomaterials, polyethyleneimine (PEI) improved the stability of the solution and acted as a reducing agent to generate reduced graphene oxide (rGO) with relatively strong conductivity, thereby promoting the transfer of electrons. The dual conductivity of rGO and silver nanoparticles (AgNPs) improved the sensitivity of the sensor. The synthesis of nanomaterials were confirmed by UV-Vis spectroscopy, X-ray diffraction, transmission electron microscopy and scanning electron microscopy...
December 28, 2021: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry