Critical comparison of aerogel TiO2 and P25 nanopowders: Cytotoxic properties, photocatalytic activity and photoinduced antimicrobial/antibiofilm performance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F22%3A00551084" target="_blank" >RIV/61388980:_____/22:00551084 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216275:25310/22:39918968

Výsledek na webu

<a href="https://doi.org/10.1016/j.apsusc.2021.152145" target="_blank" >https://doi.org/10.1016/j.apsusc.2021.152145</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2021.152145" target="_blank" >10.1016/j.apsusc.2021.152145</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Critical comparison of aerogel TiO2 and P25 nanopowders: Cytotoxic properties, photocatalytic activity and photoinduced antimicrobial/antibiofilm performance

Popis výsledku v původním jazyce

A critical comparison of two TiO2 nanopowders is herein presented. TiO2 aerogel powder synthesized via lyophilization (TiAP) and commercially available TiO2 Evonik (P25) are thoroughly investigated for their toxicity, photoinduced antimicrobial and antibiofilm properties, and photocatalytic activity. Time- and concentration-dependent A549 cell viability inhibition was characterized using estimating the mitochondrial dehydrogenase activity and glutathione levels. Both materials showed low toxicity in the pulmonary A549 cells. Photocatalytic activity of TiAP and P25 in the degradation of methylene blue and caffeine was determined, and TiAP was more efficient than P25 by 1.2–2.8 times. That is due to the 2D morphology of TiAP, along with an increased generation of hydroxyl radicals compared to a system containing 0D P25. Photoinduced antimicrobial and antibiofilm performance of TiAP and P25 on inactivation of gram-negative E. coli and gram-positive E. faecalis showed a complete log 6 reduction in the amount of bacteria after 60 min UV-A irradiation.

Název v anglickém jazyce

Critical comparison of aerogel TiO2 and P25 nanopowders: Cytotoxic properties, photocatalytic activity and photoinduced antimicrobial/antibiofilm performance

Popis výsledku anglicky

A critical comparison of two TiO2 nanopowders is herein presented. TiO2 aerogel powder synthesized via lyophilization (TiAP) and commercially available TiO2 Evonik (P25) are thoroughly investigated for their toxicity, photoinduced antimicrobial and antibiofilm properties, and photocatalytic activity. Time- and concentration-dependent A549 cell viability inhibition was characterized using estimating the mitochondrial dehydrogenase activity and glutathione levels. Both materials showed low toxicity in the pulmonary A549 cells. Photocatalytic activity of TiAP and P25 in the degradation of methylene blue and caffeine was determined, and TiAP was more efficient than P25 by 1.2–2.8 times. That is due to the 2D morphology of TiAP, along with an increased generation of hydroxyl radicals compared to a system containing 0D P25. Photoinduced antimicrobial and antibiofilm performance of TiAP and P25 on inactivation of gram-negative E. coli and gram-positive E. faecalis showed a complete log 6 reduction in the amount of bacteria after 60 min UV-A irradiation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/EF17_048%2F0007421" target="_blank" >EF17_048/0007421: Posilování mezioborové spolupráce ve výzkumu nanomateriálů a při studiu jejich účinků na živé organismy</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Applied Surface Science

ISSN

0169-4332

e-ISSN

1873-5584

Svazek periodika

579

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

152145

Kód UT WoS článku

000736687300003

EID výsledku v databázi Scopus

2-s2.0-85121105038