Figure 2

TEM images of Se-NPs at different concentrations of (a,b) 25 mM and (c, d) 50 mM, and UV/Vis spectra of Se-NPs synthesized at various concentrations and sodium hydrogen selenite.

TEM images of Se-NPs at different concentrations of (a,b) 25 mM and (c, d) 50 mM, and UV/Vis spectra of Se-NPs synthesized at various concentrations and sodium hydrogen selenite.