Anticancer Activity of Green Synthesized Manganese Doped Cerium Oxide Nanoparticles Prepared by Using Acacia Concinna Fruit Extract

ChemistrySelect, Год журнала: 2024, Номер 9(41)

Опубликована: Окт. 29, 2024

Abstract Pure CeO 2 and Ce 1‐x Mn x O , where = 0, 2, 4 6% w/w, were synthesized by sol‐gel method using Acacia Concinna fruit extract as a surfactant stabilizing agent. The particles subjected to various characterization techniques, including XRD, HRTEM, FESEM, FTIR, Raman UV‐Visible spectroscopy. XRD pattern of the samples demonstrated single phase with cubic fluorite type structure crystallite size 6–7 nm. morphology nanoparticles (NPs) was analyzed FESEM HRTEM which illustrated an aggregate irregular spherical average particle is around 18 spectroscopy validated purity indicated about structural defects caused dopants. bandgap energy NPs calculated be 3.00 eV from Tauc plot spectroscopy, gradually decreased 2.43 increase in manganese doping. Cytotoxicity studies signified role Mn‐doped potential nanotherapeutic agent for cancer treatment. cell viability assay showed that 200 µg/mL exhibited remarkable cytotoxic effect inhibiting 50% cells both breast colon lines without affecting healthy lines.

Язык: Английский

The influence of size, metal loading and oxygen vacancies on the catalytic performance of Au/CeO_2−x in the sunlight-powered reverse water gas shift reaction

Catalysis Science & Technology, Год журнала: 2024, Номер unknown

Опубликована: Дек. 10, 2024

This study reports the conversion of CO 2 and H to O at low temperature pressure (up 203 °C, p = 3.5 bar) using plasmonic Au/CeO 2− x photocatalysts, with mildly concentrated sunlight as sole energy source 9 kW m −2 ).

Язык: Английский