Smartphone-based magneto-immunosensor on carbon black modified screen-printed electrodes for point-of-need detection of aflatoxin B1 in cereals.

针对现代食品链对食品污染物现场快速检测的需求，本文报道了一种基于智能手机的磁免疫传感器，用于谷物中黄曲霉毒素B1（AFB1）的现场检测。该传感器以碳黑（CB）修饰的丝网印刷电极（SPE）为换能器，采用间接竞争ELISA策略：AFB1单克隆抗体与偶联AFB1-卵白素的磁珠竞争结合样品中的AFB1，再加入HRP标记二抗，经磁铁将磁珠固定...