Selenite bioreduction with concomitant green synthesis of selenium nanoparticles by a selenite resistant EPS and siderophore producing terrestrial bacterium

Yadav, Pooja; Pandey, Shraddha; Dubey, Santosh Kumar

doi:10.1007/s10534-023-00503-y

Cited by 5 publications

(1 citation statement)

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“…Among the microorganisms that have been reported, B. paramycoides is a valuable microbe that can efficiently degrade organic matter and eliminate pollutants. This bacterium possesses excellent reduction abilities and can reduce selected metal ions, transforming them into nanoparticles ( Yadav et al, 2023 ). In a study by ( Dharmaraj et al, 2021 ), zinc oxide nanoparticles (ZnO NPs) were synthesized using the cell-free supernatant of B. paramycoides .…”

Section: Introductionmentioning

confidence: 99%

Highly-efficient synthesis of biogenic selenium nanoparticles by Bacillus paramycoides and their antibacterial and antioxidant activities

Liu,

Long,

Cheng

et al. 2023

Front. Bioeng. Biotechnol.

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Introduction:Bacillus species are known for their ability to produce nanoparticles with various potential applications.Methods: In this study, we present a facile approach for the green synthesis of selenium nanoparticles (Se NPs) using the biogenic selenate-reducing bacterium Bacillus paramycoides 24522. We optimized the growth conditions and sodium selenite reduction efficiency (SSRE) of B. paramycoides 24522 using a response surface approach.Results: Se NPs were synthesized by reducing selenite ions with B. paramycoides 24522 at 37 °C, pH 6, and 140 r/min, resulting in stable red-colored Se NPs and maximal SSRE (99.12%). The synthesized Se NPs demonstrated lethality against Staphylococcus aureus and Escherichia coli with MICs of 400 and 600 μg/mL, and MBCs of 600 and 800 μg/mL, respectively, indicating the potential of Se NPs as antibacterial agents. Furthermore, the Se NPs showed promising antioxidant capabilities through scavenging DPPH radicals and reducing power.Discussion: This study highlights the environmentally friendly production of Se NPs using B. paramycoides 24522 and their possible applications in addressing selenium pollution, as well as in the fields of environment and biotechnology.

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Section: Introductionmentioning

confidence: 99%