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Journal of Analytical Science and Technology
Fig. 2 | Journal of Analytical Science and Technology

Fig. 2

From: A novel cysteine catalytic oxidation-based colorimetric approach for sensitive analysis of acute pancreatitis-related microRNA

Fig. 2

Feasibility of the RCA reaction and color reaction. A fluorescence spectrum of the FAM-labeled miRNA when exonuclease-III (Exo-III) existed or not. B Schematic illustration of the fluorescent assay to test the RCA product. C FAM signals of the RCA product when primer, T4 DNA ligase, and phi29 enzyme were existed in the system or not. D Absorbance of the AuNPs before and after aggregation. Inserted is the color change of AuNPs, a, before aggregation; b, after aggregation

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