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Fig. 2 | Journal of Nanobiotechnology

Fig. 2

From: Selenium nanoparticles-loaded chitosan/citrate complex and its protection against oxidative stress in d-galactose-induced aging mice

Fig. 2

Characterization of SeNPs-C/C. a SEM image of SeNPs-C/C and inset for the details. b Size distribution of SeNPs-C/C measured by Mie theory. c TEM image of SeNPs-C/C and inset for EDS spectra, with arrows indicating single SeNPs embedded into SeNPs-C/C. d Se 3d XPS pattern and e wide-range XPS pattern of SeNPs-C/C with inset for N1s XPS result, recorded by a high-resolution photoelectron spectrograph (Escalab 250Xi) equipped with a monochromatic Al Kα X-ray source. Argon ion etching lasting for 60 s was applied to expose Se information inside SeNPs-C/C. f FTIR spectra of bare SeNPs, CTS, Blank C/C and SeNPs-C/C

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