Sythesis, Modification, and Biosensing Characteristics of Au₂S/AuAgS-Coated Gold Nanorods

Figure 3

UV-vis-NIR spectra of Au₂S/AuAgS/GNRs acquired from (a) GNRs without centrifugation and (b) the purified GNRs for different reacting time with Na₂S₂O₃.

(a)

(b)