Figure 3: Silver nanoparticle dissolution is involved in nano-Ag2S formation.
From: Dynamic protein coronas revealed as a modulator of silver nanoparticle sulphidation in vitro
Ultraviolet–visible full spectra of quasi-spherical Ag NPs (a) and quadrupole peak detail of nanocubes (b) incubated (1 day: blue or 7 days: pink) in RPMI-1640 cell culture medium supplemented with 1% FBS, with or without added extra 10% (by mass) Ag+ ions from AgNO3; EDS spectra of the supernatant obtained after centrifugation of Ag NPs incubated for 7 days in RPMI-1640 with 1% FBS, before (c) and after (d) spiking with 5 nm PVP-coated Ag NPs, with dotted red line highlighting the presence of a silver signal only in the spiked sample.
