Fig. 4From: RGD-HK Peptide-Functionalized Gold Nanorods Emerge as Targeted Biocompatible Nanocarriers for Biomedical ApplicationsSERS of peptide on the gold nanorods and Raman spectrum of peptide powder and CTAB-GNRs at 250–3600 cm−1 region (a) and 100–500 cm−1 region (b)Back to article page