Fig. 2: Adsorption of MPA on AgNP.
From: Silver nanospirals via autoaccelerated oriented assembly
A Normalized spectra with inset showing change in LSPR(nm) upon continuous addition of 1/1 mM MPA/NaOH to 2 ml AgNP solution; B UV-Vis spectra with inset showing the change in LSPR(nm) upon continuous addition of 1 mM MPA to 2 ml AgNP solution; C change in LSPR and absorbance ratio at 420/380 nm upon MPA addition; D DLS of AgNP with MPA/Ag ratio 0–0.09; E, F optical microscope images of AgNP oligomers and agglomerates. The spot size of the scattered light is much larger compared to the true AgNP size and colors are a consequence of nanoparticle shape and orientation. G Ag(I) thiolate polymer obtained by mixing equimolar amounts of AgNO3 and MPA; H overlayed potential-pH equilibrium diagram for the system Ag-H2O2-HO˙-HOO˙-Ag2S-BH4--H2O at 25 °C and species unity concentration.
