Construction of a modular arsenic resistance operon in E. coli and the production of arsenic nanoparticles: Figure 4 original images

Abstract

Original EM images and EDX data for pEC20 & pArsRBCC E. coli cells incubated with sodium arsenate. (A): TEM image of cell with bound arsenic; (B): close-up of analysed area; (C): green box indicates where beam was placed, red box indicates where background reading was taken; (D): atomic % from X-ray spectra; (E): summed X-ray spectrum from the analysed region showing all elements present.