Ultra-sensitive biosensor based on genetically engineered acetylcholinesterase immobilized in poly (vinyl alcohol)/Fe-Ni alloy nanocomposite for phosmet detection in olive oil.

本文报道了一种用于橄榄油中杀扑磷检测的超灵敏丝网印刷生物传感器。该传感器以基因工程改造的乙酰胆碱酯酶（AChE）为识别元件，将其物理包埋于叠氮基水溶性侧基聚乙烯醇（PVA-AWP）/铁镍合金（Fe–Ni）纳米复合材料中。Fe–Ni纳米粉不仅可放大响应电流，还将最佳施加电位由80 mV负移至30 mV（vs Ag/AgCl），从而降低...