Rapid Detection and Identification of miRNAs by Surface-Enhanced Raman Spectroscopy Using Hollow Au Nanoflowers Substrates

Figure 3

(a) The reproducibility of HAuNFs substrates measured with NBA (1 × 10⁻⁸ M). (b) SERS stability of NBA-labeled HAuNFs substrates measured with NBA (1 × 10⁻⁸ M). HAuNFs substrates were stored for several days at room temperature. Inset image was SERS intensities of the bands at 592 cm⁻¹ corresponding to the SERS spectra (b). (c) SERS spectra of HAuNFs substrates measured with NBA from 1 × 10⁻⁸ M to 1 × 10⁻¹² M. (d) SERS spectra of (black curve) HAuNFs substrates treated with 0.1 M KI and (red curve) HAuNFs substrates without being treated with 0.1 M KI.

(a)

(b)

(c)

(d)