Antimicrobial activity of silver nanoparticles against proteus mirabilis isolated from patients with food diabetes ulcer

The aim of this study was to study the antibacterial activity of Silver nanoparticles synthesized by L. acidophilus and the biosynthesis of AgNPs from nonpathogenic bacterial isolates. Fifty samples were obtained during the period from December ۲۰۲۰ to March ۲۰۲۱. AgNO۳ was used as a precursor for the synthesis of AgNPs. Biological AgNPs were originally shown by change the color, yellow to reddish-brown. The categorization of AgNPs accomplished by SEM, XRD, AFM, and EDS. SEM exhibited well-dispersed AgNPs, homogenous with a diameter of ۴۰-۶۰ nm, with inconstant shapes, mostly spherical form. XRD detected that the size of AgNPs was ۳۴ nm. AFM also showed the three-dimensional structure of AgNPs and their diameter which was ۴۵.۸۲ nm. EDS exhibited that the AgNPs fabricated was ۹۴.۸۲% silver and ۵.۱۸ % oxygen. Silver nanoparticles displayed antibacterial action to MDR of P. mirabilis.

کلیدواژه ها:

Biogenic silver nanoparticles ، L. acidophilus ، Antimicrobial activity ، P. mirabilis