Figure 3: UV/Vis absorbance spectra of Methylene Blue (MB) (black) and 15 minutes after the addition of sodium borohydride (olive) in presence of MFSi (magenta), calcinated AuSi (red), PtSi (blue), AgSi (cyan) and AuPtSi (green).
From: Passion fruit-like nano-architectures: a general synthesis route

Background subtraction was applied to all spectra.