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. 2019 Aug 13;10:1866. doi: 10.3389/fmicb.2019.01866

FIGURE 5.

FIGURE 5

X-ray diffraction and X-ray photoelectron spectroscopy of QDs biosynthesized by P. fragi GC01. XRD pattern of CdS nanoparticles synthesized in cultures in the presence of (A) Cys and (B) Met as sole sulfur sources. (C) XPS spectra of Cd 3d region of CdS QDs obtained with Cys.