Fig. 3From: Multistage nucleic acid amplification induced nano-aggregation for 3D hotspots-improved SERS detection of circulating miRNAsQuantitative analysis of different miRNAs. A Representative SERS spectra of miRNA-328 at various concentrations. B Linear regression constructed using the 1340 cm−1 peak intensity obtained from miRNA-328 detection. C Representative SERS spectra of miRNA-208 at various concentrations. D A standard curve constructed using the 1340 cm−1 peak intensity obtained from miRNA-208 detectionBack to article page