Academic journal article Iranian Journal of Public Health

Biosynthesis of Silver Nanoparticles by Lactobacillus Casei

Academic journal article Iranian Journal of Public Health

Biosynthesis of Silver Nanoparticles by Lactobacillus Casei

Article excerpt

Background: In this study we used Lactobacillus casei (PTCC1608) as a probiotic to biosynthesis of AgNp. AgNp biosynthesized by this safe microorganism can used in medi- cine and pharmacology.

Methods: Lactobacillus casei was cultured in MRS broth and incubated in 37 ? c and 5% co2 for 24 h.Then its centrifuged in 4000 rpm for 20 min. Supernatant was filtered by 0.45 micron then supernatant was added to silver nitrat 0.001, 0.002M and incubated in 37, 28 ? c for 1 week. Change of solution colour to brown was shown AgNp was made, to provide it was used of uv-vis spectrophotometer, XRD, XRF, AAS and TEM.

Results: Result was shown that Lactobacillus casei had potenti- ality biosynthesis of AgNp. Uv-Vis spectrophotometer, XRD and XRF diyagrams was provid AgNps in solution. …

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