Assessment of Charged AuNPs: From Synthesis to Innate Immune Recognition

Figure 1

(a) UV-visible spectra of different AuNPs synthesized in this study (absorbance adjusted to the same value); the inset shows the clear red shift of about 3 nm before and after PEGylation of PLL-AuNPs. (b) SEM image of PLL-AuNPs with a diameter of about 30 nm (scale bar 500 nm).

(a)

(b)