ArticleAnalytical biochemistry2023
A duplex-specific nuclease based electrochemical biosensor for the assay of SARS-CoV-2 RdRp RNA.
Article in Analytical biochemistry, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Nanomaterial-Based Biosensors for the Detection of COVID-19.Indian journal of microbiology · 2025Article
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2 authors.
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Abstract
We present a method for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) detection based on the dual amplification effect of duplex-specific nuclease (DSN). In this scheme, we cleverly employed a 2-OMe-RNA modified DNA to prevent hairpin nucleic acid from being digested by DSN. The target RNA and 2-OMe-RNA are released when DSN cleaves just the double-stranded RNA/hairpin nucleic acid DNA. The target RNA then forms a circular reaction when it hybridizes with another hairpin nucleic acid. Simultaneously, the released target 2-OMe-RNA turns on the hairpin DNA2 on the electrode surface, and when the DSN cleaves the DNA in the hairpin DNA2/2-OMe-RNA duplex, the 2-OMe-RNA is released and hybridized with the other hairpin DNA2. The hairpin DNA2 on the electrode surface is split off after many cycles, exposing the gold electrode surface. As a consequence, there is more K
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