Characterization of green synthesized selenium nanoparticles (SeNPs) in two different indigenous halophilic bacteria.

Autor: Tabibi M; Department of Microbiology, Qom Branch, Islamic Azad University, Qom, 3749113191, Iran., Aghaei S; Department of Microbiology, Qom Branch, Islamic Azad University, Qom, 3749113191, Iran. soheilaghaee@yahoo.com., Amoozegar MA; Extremophiles Lab., Dept. of Microbiology, School of Biology, College of Science, University of Tehran, Tehran, Iran. amoozegar@ut.ac.ir., Nazari R; Department of Microbiology, Qom Branch, Islamic Azad University, Qom, 3749113191, Iran., Zolfaghari MR; Department of Microbiology, Faculty of Basic Science, Qom Branch, Islamic Azad University, Qom, Iran.
Jazyk: angličtina
Zdroj: BMC chemistry [BMC Chem] 2023 Sep 16; Vol. 17 (1), pp. 115. Date of Electronic Publication: 2023 Sep 16.
DOI: 10.1186/s13065-023-01034-w
Abstrakt: Background: In the biological method, using nonpathogenic and extremophile bacteria systems are not only safe and highly efficient but also a trump card for synthesizing nanoparticles. Halomonas elongata QW6 IBRC-M 10,214 (He10214) and Salinicoccus iranensis IBRC-M 10,198 (Si10198), indigenous halophilic bacteria, can be used for synthesizing selenium nanoparticles (SeNPs).
Methods: SeNP biosynthesis was optimized in two halophilic bacteria and characterized by UV-Vis, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray powder diffraction (XRD), zeta potential, and energy dispersive X-ray (EDX).
Results: Optimized conditions for synthesizing SeNPs was at 300 °C at 150 rpm for 72 h and 6 mM or 8 mM concentration of Na 2 SeO 3 . UV-Vis indicated a sharp absorption peak at 294 nm. Spherical-shaped nanoparticles by a diameter of 30-100 nm were observed in FESEM and TEM microscopy images. The produced SeNPs were identified by a peak in FTIR spectra. In XRD analysis, the highest peak diffraction had a relationship with SeNPs. The zeta potential analysis showed SeNP production, and elemental selenium was confirmed by EDX.
Conclusions: Halophilic bacteria, owing to easy manipulation to create optimization conditions and high resistance, could serve as appropriate organisms for the bioproduction of nanoparticles. The biological method, due to effectiveness, flexibility, biocompatibility, and low cost, could be used for the synthesis of reproducible and stable nanoparticles.
(© 2023. Springer Nature Switzerland AG.)
Databáze: MEDLINE
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