Influence of Silica Nanoparticles on Antioxidant Potential of Bacillus subtilis IMV B-7023

Skorochod, Iryna; Roy, Alla; Курдиш, І. К.

doi:10.1186/s11671-016-1348-2

Cited by 10 publications

(5 citation statements)

References 22 publications

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“…The variation in the peak intensities demonstrates that at the same concentration of zinc oxide, more hydroxyl radicals were produced from the ZnO@SN nanoparticles than from the ZnO nanoparticles. Skoro- chod and coworkers suggested that nano-SiO 2 can mediate the accumulation of hydroxyl radicals on the surface of silica nanoparticles [39]. We hypothesize that the special structure of the silica nanorattles could accumulate more hydroxyl radicals and improve the average efficiency of the hydroxyl radicals produced by ZnO nanoparticles under UV irradiation for a higher detection rate.…”

Section: H+zno+oh à !Oh å ð1þmentioning

confidence: 81%

Enhanced antibacterial activity of silica nanorattles with ZnO combination nanoparticles against methicillin-resistant Staphylococcus aureus

Chai

Liu

et al. 2017

Science Bulletin

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Silica nanorattles (SNs) with zinc oxide (ZnO) combination nanoparticles are reported to inhibit methicillin-resistant Staphylococcus aureus (MRSA) for the first time. SNs loaded with ZnO nanoparticles, which can produce free radicals, can cause severe damage to bacteria. ZnO nanoparticles not only provide free radicals in the combined nanostructures, which can inhibit the growth of bacteria, but also form nanorough surfaces with an irregular distribution of spikes on the SNs, which can enhance their adhesion to bacteria. Nanorough silica shell surfaces maintain the high activity and stability of small-sized ZnO nanoparticles and gather ZnO nanoparticles together to enhance production, which improves the efficiency of free radicals against the cytomembranes of bacterial cells. The enhanced adhesion of ZnO@SN nanoparticles to MRSA cells shortens the effective touching distance between free radicals and MRSA, which also improves antibacterial activity. As we expected, the ZnO@SN nanoparticles exhibit a better antibacterial effect than free ZnO nanoparticles against MRSA in vitro and in vivo. We also demonstrate that SNs loaded with ZnO nanoparticles can accelerate wound healing in MRSA skin inflammation models. This method of multilevel functionalization will be potentially applicable to the antibacterial field.

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Section: H+zno+oh à !Oh å ð1þmentioning

confidence: 81%

Enhanced antibacterial activity of silica nanorattles with ZnO combination nanoparticles against methicillin-resistant Staphylococcus aureus

Chai

Liu

et al. 2017

Science Bulletin

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“…248 Progressively, the Bacillus subtilis RW-I-based lipopeptide biosurfactant was reported as an alternative antioxidant molecule, which could accomplish a better antioxidant capacity in future study. 249 Skorochod et al 250 reported one of the most important applications using nano-SiO 2 , where the 4.5–11.8% of antioxidant potential was diminished through nano-SiO 2 of Bacillus subtilis IMV B-7023. On the other hand, the green nanoparticles showed a significant equilibrium amongst antioxidative protection of cells and boost the antioxidant potential through oxidative stress.…”

Section: Current Applications In Biomedical and Environmental Nanotec...mentioning

confidence: 99%

New aspects of lipopeptide-incorporated nanoparticle synthesis and recent advancements in biomedical and environmental sciences: a review

et al. 2023

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“…Due to the widespread use of nanoparticles in formulations in recent years, their release into the environment and wastewater is unavoidable (Huang et al 2017) and brings toxicity to biota and/or wastewater treatment processes. Because of increasing concern about the environmental impacts of the latest materials, studies of the toxicity, hazards, fate, and environmental impact of nanoparticles are beginning (Liu et al 2014;Skorochod et al 2016;Ríos et al 2018b).…”

Section: Introductionmentioning

confidence: 99%

Environmental impact assessment of nanofluids containing mixtures of surfactants and silica nanoparticles

Lechuga

Fernández-Serrano

Ríos

et al. 2022

Environ Sci Pollut Res

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Due to widespread use of nanoparticles in surfactant-based formulations, their release into the environment and wastewater is unavoidable and toxic for biota and/or wastewater treatment processes. Because of concerns over the environmental impacts of nanofluids, studies of the fate and environmental impacts, hazards, and toxicities of nanoparticles are beginning. However, interactions between nanoparticles and surfactants and the biodegradability of these mixtures have been little studied until now. In this work, the environmental impacts of nanofluids containing mixtures of surfactants and silica nanoparticles were valuated. The systems studied were hydrophilic silica nanoparticles (sizes 7 and 12 nm), a nonionic surfactant (alkyl polyglucoside), an anionic surfactant (ether carboxylic acid), and mixtures of them. The ultimate aerobic biodegradation and the interfacial and adsorption properties of surfactants, nanoparticles, and mixtures during biodegradation were also evaluated. Ultimate biodegradation was studied below and above the CMCs of the individual surfactants. The interfacial and adsorption properties of surfactant solutions containing nanoparticles were influenced by the addition of silica particles. It was determined that silica nanoparticles reduced the capability of the nonionic surfactant alkyl polyglucoside to decrease the surface tension. Thus, silica NPs promoted a considerable increase in the surfactant CMC, whereas the effect was opposite in the case of the anionic surfactant ether carboxylic acid. Increasing concentrations of surfactant and nanoparticles in the test medium caused decreases in the maximum levels of mineralization reached for both types of surfactants. The presence of silica nanoparticles in the medium reduced the biodegradability of binary mixtures containing nonionic and anionic surfactants, and this effect was more pronounced for larger nanoparticles. These results could be useful in modelling the behaviour of nanofluids in aquatic environments and in selecting appropriate nanofluids containing nanoparticles and surfactants with low environmental impact. Graphical abstract

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Influence of Silica Nanoparticles on Antioxidant Potential of Bacillus subtilis IMV B-7023

Cited by 10 publications

References 22 publications

Enhanced antibacterial activity of silica nanorattles with ZnO combination nanoparticles against methicillin-resistant Staphylococcus aureus

Enhanced antibacterial activity of silica nanorattles with ZnO combination nanoparticles against methicillin-resistant Staphylococcus aureus

New aspects of lipopeptide-incorporated nanoparticle synthesis and recent advancements in biomedical and environmental sciences: a review

Environmental impact assessment of nanofluids containing mixtures of surfactants and silica nanoparticles

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