Assessment of Charged AuNPs: From Synthesis to Innate Immune Recognition

Figure 2

(a) Size distribution by intensity of PVA-AuNPs, PLL-AuNPs, and PLL-PEG-AuNPs from DLS measurements. The size of PLL-AuNPs increases from 47 nm to 75 nm after PEGylation. (b) Zeta potential for the corresponding AuNP polymers. As shown, PVA-AuNPs were slightly negative (−10 mV), while PEGylation decreased the zeta potential of the positively charged PLL-AuNPs from +34 mV to +12 mV.

(a)

(b)