Highly Sensitive Aptasensor for Trace Arsenic(III) Detection Using DNAzyme as the Biocatalytic Amplifier

A highly sensitive fluorescence biosensing system was designed for the detection of trace amounts of arsenic(III) (As3+) based on target-triggered successive signal amplification strategy. The specific recognition between the target As3+ and the aptamer sequence results in the release of the blocki...

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Veröffentlicht in:	Analytical chemistry (Washington) 2019-02, Vol.91 (3), p.1724-1727
Hauptverfasser:	Zeng, Lingwen, Zhou, Danhua, Gong, Junyu, Liu, Chengshuai, Chen, Junhua
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplification Analytical chemistry Aptamers Arsenic Arsenic ions Biosensors Chemistry Deoxyribonucleic acid DNA Exonuclease Fluorescence Magnesium Magnetic separation Nucleotide sequence Selectivity Signal processing Substrates Target detection Target recognition Water analysis Water sampling
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