Magnetic beads-based DNA hybridization chain reaction amplification and DNAzyme recognition for colorimetric detection of uranyl ion in seafood

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• 作者：Hongyan Zhang^a ; ^b ; Xian Cheng^a ; Lian Chen^a ; Fan Mo^a ; LiangJun Xu^a ; FengFu Fu^a ; ^{fengfu@fzu.edu.cn}
• 关键词：Uranyl ion ; DNAzyme ; Colorimetric biosensor ; Magnetic beads ; DNA hybridization chain reaction
• 刊名：Analytica Chimica Acta
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：956
• 期：Complete
• 页码：63-69
• 全文大小：1142 K
• 卷排序：956

文摘

A visual biosensor for sensitive and specific detection of trace UO22+ in seafood was developed. All detecting procedures of the biosensor were carried out at room temperature. The biosensor can be used to detect as low as 2.5 ppb UO22+ in seafood by naked-eye observation. 1000-folds of other environmentally relevant metal ions do not interfere with the detection of UO22+.