Abstract:Rolling circle amplification (RCA) has been utilized for detecting a diverse range of analytes, molecular pathways, and in cellular imaging. However, non-specific amplification (NSA, amplification in absence of a target analyte) in RCA assays, especially those involving pre-synthesized circular DNA (cDNA), affects its sensitivity and specificity. NSA could originate from inefficient ligation or the succeeding cDNA purification steps. To quantify the NSA in RCA here, cDNA substrates were prepared using either s… Show more
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