适体
圆二色性
检出限
黄曲霉毒素
化学
色谱法
分析化学(期刊)
立体化学
分子生物学
生物
食品科学
作者
Chao Wang,Kexiao Zhu,Peng‐Fei Shi,Xilai Ding,Shusheng Zhang
摘要
We describe a simple aptamer assay for the rapid analysis of aflatoxin B1 (AFB1), a potently carcinogenic fungal metabolite. The original anti-AFB1 aptamer was rationally truncated, obtaining a short aptamer that displayed better performance. Different concentrations of AFB1 were detected by measuring the circular dichroism spectra of this short aptamer. The detection limit reached 0.6 nM, which was lower than that of the original aptamer (80 nM).
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