Designing Gold Nanoparticle-Ensembles as Surface Enhanced Raman Scattering Tags inside Human Retinal Cells
Figure 4
Extinction spectra of gold nanospheres ((GNSs) black line) and of PEGylated gold nanoensembles ((PEG-GENs) colored lines) recorded in the absence (thick lines) and in the presence (dotted lines) of 1 M NaCl solution.