Synthesis of Monodispersed Gold Nanoparticles with Exceptional Colloidal Stability with Grafted Polyethylene Glycol-g-polyvinyl Alcohol

Figure 6

Colloidal stability evaluation of Cit-GNPs ((a) and (d)), PVA-GNPs ((b) and (e)), and PEG-PVA-GNPs ((c) and (f)) against salt addition (upper panel, (a), (b), and (c)) or against repeated centrifugation (lower panel, (d), (e), and (f)). Photograph and corresponding UV-Vis spectra (indicated by arrows) are shown for each case.

(a)

(b)

(c)

(d)

(e)

(f)