检出限
黄曲霉毒素
电动现象
生物传感器
线性范围
电极
纳米技术
化学
色谱法
材料科学
食品科学
物理化学
作者
Tingyu Chen,Ting Guo,Jing Zhang,Xiaozhu Liu,Jianming Chen,Weijie Wang,Yuhao Zhang,Ma Liang
标识
DOI:10.1016/j.snb.2024.136055
摘要
Aflatoxin B1 (AFB1), known for its high toxicity, poses a serious threat to the agriculture and food chain, thereby impacting human health. Herein, a facile electrochemical aptasensor was developed based on alternating current electrokinetic enrichment for rapid and sensitive detection of AFB1. Alternating electric fields on the interdigital electrode array was introduced to improve the sensitivity and time, because the target could be manipulated for migrating from the solution to the sensing interface instead of aimless random motion, leading to the enrichment of the target. The biosensor achieved the trace detection of AFB1, demonstrating a remarkable detection limit of 9.55 × 10−6 ng/mL, and the linear range of 10−3–102 ng/mL. Furthermore, the biosensor was successfully employed for the detection of AFB1 in actual peanuts and peanut oil, demonstrating its great application potential in food analysis.
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