Au-Ag Core-Shell Nanospheres for Surface-Enhanced Raman Scattering Detection of Sudan I and Sudan II in Chili Powder

<div>Representative SERS spectra of chili extracts spiked with Sudan I and Sudan II, using Au@Ag NPs of about 73 nm as substrate.</div>

Journal of Nanomaterials

Figure 7: Au-Ag Core-Shell Nanospheres for Surface-Enhanced Raman Scattering Detection of Sudan I and Sudan II in Chili Powder 