2023
DOI: 10.3762/bxiv.2023.37.v1
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The effects of silver nanoparticles (AgNPs) on thermophilic bacteria: Antibacterial, morphological, physiological and biochemical investigations

Israt Jahan,
Fatma Matpan Bekler,
Ahmed Tunç
et al.

Abstract: Since thermophilic microorganisms are valuable source of thermostable enzymes, it is essential to recognize the potential toxicity of silver nanoparticles used in diverse industrial sectors. Thermophilic bacteria Geobacillus vulcani 2Cx, Bacillus licheniformis 3CA, Paenibacillus macerans 3CA1, Anoxybacillus ayderensis FMB1, and Bacillus paralicheniformis FMB2-1 were selected, and their MIC and MBC values were assessed by treating with AgNPs at a range of 62.5-1500 μg mL−1. The growth inhibition curves showed t… Show more

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“…Subsequent changes ensue, impacting membrane integrity and increasing permeability, thereby leading to cell content leakage and the ultimate demise of microbial cells. Of particular note is the disruption of the bacterial respiratory chain by silver nanoparticles, impeding vital physiological processes and culminating in cell death (Jahan et al 2023). Moreover, these nanoparticles are renowned for their capacity to generate reactive oxygen species, including hydroxyl and superoxide radicals.…”
Section: Introductionmentioning
confidence: 99%
“…Subsequent changes ensue, impacting membrane integrity and increasing permeability, thereby leading to cell content leakage and the ultimate demise of microbial cells. Of particular note is the disruption of the bacterial respiratory chain by silver nanoparticles, impeding vital physiological processes and culminating in cell death (Jahan et al 2023). Moreover, these nanoparticles are renowned for their capacity to generate reactive oxygen species, including hydroxyl and superoxide radicals.…”
Section: Introductionmentioning
confidence: 99%