T7 exo-mediated FRET-breaking combined with DSN–RNAse–TdT for the detection of microRNA with ultrahigh signal-amplification

Literature Information

Publication Date 2019-04-05
DOI 10.1039/C9AN00303G
Impact Factor 4.616
Authors

Van Thang Nguyen, Binh Huy Le


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Abstract

A DSN–RNAse–TdT–T7 exo probing system allows the detection of miRNA 21 with very high sensitivity (LOD = 2.57 fM) and selectivity—the result of (i) avoiding the false-positive signal from miRNA reacting with TdT polymerase and (ii) signal amplification occurring through a FRET-breaking mechanism involving T7 exo.

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