Fig. 2
From: Fabrication of Gold Nanoparticles/Graphene-PDDA Nanohybrids for Bio-detection by SERS Nanotechnology
TEM of various ratios of Au/graphene-PDDA: a Au1/G2, b Au2/G1, c Au4/G1, d Au8/G1, and e Au16/G1
Fig. 2 | Nanoscale Research Letters
