Effect of Zr doping on photoantioxidant and antibiofilm properties of CeO 2 NPs fabricated using aqueous leaf extract of Pometia pinnata.

Autor: Naidi SN; Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam., Khan F; Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, 48513, South Korea., Harunsani MH; Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam., Tan AL; Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam., Kim YM; Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, 48513, South Korea.; Department of Food Science and Technology, Pukyong National University, Busan, 48513, South Korea., Khan MM; Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam. mmansoobkhan@yahoo.com.
Jazyk: angličtina
Zdroj: Bioprocess and biosystems engineering [Bioprocess Biosyst Eng] 2022 Feb; Vol. 45 (2), pp. 279-295. Date of Electronic Publication: 2021 Nov 02.
DOI: 10.1007/s00449-021-02656-x
Abstrakt: Synthesized cerium oxide nanoparticles (S-CeO 2 NPs) and 1%, 5% and 10% zirconium doped CeO 2 (Zr-doped CeO 2 ) NPs were fabricated using aqueous leaf extract of Pometia pinnata. The synthesized NPs were characterized using standard techniques which confirmed successful synthesis of NPs with particle size ranging from 12 to 23 nm and band gap energy of 2.54-2.66 eV. Photoantioxidant activities showed enhanced activities under visible light irradiation in comparison to the dark condition in the dose-dependent study. Biofilm inhibition studies showed ~ 73% biofilm inhibition of Staphylococcus aureus at 512 µg/mL for S-CeO 2 , whereas 10% Zr-doped CeO 2 NPs showed biofilm inhibition of 52.7%. The bactericidal tests showed killing properties at 1024 µg/mL of S-CeO 2 NPs and at 512 µg/mL of 1% Zr-doped CeO 2 . Reduced bactericidal activities were observed for 5% and 10% Zr-doped CeO 2 . These studies showed that the fabricated NPs have both good photoantioxidant and antibacterial properties.
(© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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