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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/61989100:27640/17:10235891 RIV/61989100:27740/17:10235891

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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).

Název v anglickém jazyce

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

Popis výsledku anglicky

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).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials Chemistry and Physics

ISSN

0254-0584

e-ISSN

—

Svazek periodika

197

Číslo periodika v rámci svazku

srpen

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

226-235

Kód UT WoS článku

000403996900028

EID výsledku v databázi Scopus

2-s2.0-85020430712