Details

Autor(en) / Beteiligte

• Nadaroglu, Hayrunnisa
• Onem, Hicran
• Alayli Gungor, Azize

Titel

Green synthesis of Ce 2 O 3 NPs and determination of its antioxidant activity

Ist Teil von

• IET nanobiotechnology, 2017-06, Vol.11 (4), p.411-419

Ort / Verlag

United States

Erscheinungsjahr

2017

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• In this study, the authors presented synthesis of ceria nanoparticles (NPs) by the bio-reduction method and their antioxidative activity. Aqueous extract of ( ) was used as reducing and stabilising agents. They used aqueous extract of ( ) as reducing and stabilising agent. Ultraviolet-visible (UV-vis) absorption spectroscopy was used to monitor the quantitative formation of ceria NPs. They also addressed the characteristics of the obtained ceria NPs using scanning electron microscopy (SEM), X-ray diffraction (XRD) and transmitting electron microscope (TEM). The synthesised cerium (III) oxide (Ce O ) NPs were initially noted through visual colour change from colourless pale yellow cerium (III) to light yellow cerium (IV) and further confirmed the band at 345 nm employing UV-vis spectroscopy. The average diameter of the prepared NPs was about 8.6-10.5 nm. In addition, the synthesised Ce O NPs were tested for antioxidant and anti-bacterial activities using ferric reducing antioxidant power, cupric reducing antioxidant capacity, ferrous ions chelating activity, superoxide the anion radical scavenging and 2, 2'-azinobis 3-ethylbenzothiazol to-6-sulphonic acid scavenging activity. It could be concluded that ( ) extract can be used efficiently in the production of potential antioxidant and anti-bacterial Ce O NPs for commercial applications.