Daylight induced antibacterial activity of gadolinium oxide, samarium oxide and erbium oxide nanoparticles and their aquatic toxicity

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A10235891" target="_blank" >RIV/61989100:27360/17:10235891 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/17:10235891 RIV/61989100:27740/17:10235891
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S025405841730408X?via%3Dihub" target="_blank" >http://www.sciencedirect.com/science/article/pii/S025405841730408X?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matchemphys.2017.05.039" target="_blank" >10.1016/j.matchemphys.2017.05.039</a>

Result language
angličtina
Original language name
Daylight induced antibacterial activity of gadolinium oxide, samarium oxide and erbium oxide nanoparticles and their aquatic toxicity
Original language description
The present article describes a method of the preparation of three dilanthanide trioxides (Lx2O3): gadolinium oxide (Gd2O3), samarium oxide (Sm2O3) and erbium oxide (Er2O3) in a shape of nanoparticles. Thermal decomposition of a transient complex formed in situ from Lx(NO3)(3). H2O and glycine was studied using TG/DTA analysis. The resulting 10 (Gd2O3, Er2O3) to 11 nm (Sm2O3) nanoparticles grouped into 8 micro m agglomerates were characterized by X-ray powder diffraction analysis, the particle size (PS) and particle size distribution (PSD) analysis. Morphology of the nanoparticles was examined by scanning and transmission electron microscopy. The antibacterial activity against four common human pathogens (Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa) was determined both in dark conditions and on daylight was investigated revealing a phototoxic phenomenon. The lowest determined MICs were as low as 5.6 mg ml(-1) against Escherichia coli and Pseudomonas aeruginosa. Moreover, acute aquatic toxicity tests of prepared nanoparticles were driven revealing the moderate toxicities against Desmodesmus subspicatus peaking with EC50 = 0.47 g dm(-3) (Er2O3 nanoparticles).
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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