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. 2014 Jun 7;9:2791–2801. doi: 10.2147/IJN.S58685

Figure 4.

Figure 4

Energy dispersive spectroscopy spectra of poly-lactide-co-glycolide iron oxide nanoparticles previously analyzed with transmission electron microscopy. Energy-dispersive X-ray microanalysis (energy dispersive spectroscopy) spectra were collected from 4 different points of nanoparticles. A is referring to the core of nanoparticles while BD from the outer parts of nanoparticles.