Fig. 5
From: Fabrication of Gold Nanoparticles/Graphene-PDDA Nanohybrids for Bio-detection by SERS Nanotechnology

Zeta potential of various ratios of Au/graphene-PDDA
From: Fabrication of Gold Nanoparticles/Graphene-PDDA Nanohybrids for Bio-detection by SERS Nanotechnology
Zeta potential of various ratios of Au/graphene-PDDA