Effect of Flavonoid-Coated Gold Nanoparticles on Bacterial Colonization in Mice Organs.

NANOMATERIALS(2020)

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Abstract
Multidrug resistance (MDR) has been a potentiator for the exploration of antibiotics. Nano drug delivery systems have opened new avenues to overcome this challenge. Although antibacterial nanocarriers are extensively realized, their effect on the bacteria residing inside the tissues and their toxicity is rarely explored. This study investigated the effects of flavonoid coated gold nanoparticles (FAuNPs) on the colonization ofEnterococcus faecalisin the mouse liver and kidneys. Flavonoids were extracted from the leaves ofBerberis lyciumRoyle and used to stabilize gold following a green synthesis approach. FAuNPs were characterized by ultraviolet-visible (UV-Vis) spectroscopy, Fourier-transform infrared spectroscopy (FTIR), scanning transmission electron microscopy (STEM), X-ray powder diffraction (XRD), and energy-dispersive X-ray spectroscopy (EDS). FAuNPs showed significantly higher reduction in bacterial counts in in-vitro and in-vivo in mice organs as compared to the free flavonoids owing to their biocompatibility and effectiveness.
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Key words
flavonoids,Berberis lycium,Enterococcus faecalis,drug delivery,infectious diseases
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