Fig. 2
From: Biosynthesis of selenium nanoparticles by Azoarcus sp. CIB
Analysis of the SeNPs production by stationary-phase Azoarcus sp. CIB cells. SEM analysis (a) and TEM analysis showing nanoparticles outside (b) or inside (c) the cells. Black line on c represents 500 nm. d EDX analysis of one SeNP of panel a. In the inset are shown the diffuse rings in the SAED (selected area electron diffraction) pattern of one SeNP. White line on the inset represents 5 1/nm. e Size distribution of SeNPs produced by Azoarcus