Seed-mediated synthesis of acanthosphere-like gold microstructures with tunable LSPR in the NIR region using gemini surfactants as directing agents for SERS applications

Preparation of Ag/Ag 2 W 2 O 7 nanoribbons and their SERS detection for dye molecules

“…To extend the SERS application of the Ag/Ag 2 W 2 O 7 NRs, Raman spectra of Rh B on the Ag 2 W 2 O 7 and Ag/Ag 2 W 2 O 7 NRs substrates are also examined, as displayed in Figure 5(a,b). The peak at 1284 cm −1 is attributed to the C O C stretching mode, while the peaks at 1363, 1435, 1509, 1533 and 1650 cm −1 are assigned to the aromatic C C stretching mode [19]. Their corresponding minimum detected concentrations are 1.0 × 10 −6 and 1.0 × 10 −11 M. Similarly, there is a good linear relationship (I = 3595.68 + 312.54log|C|, R 2 = 0.92) in Figure 5(c).…”