An antioxidant study of Titanium dioxide (TiO2) nanoparticles against mace of nutmeg in Myristica fragrans houtt, rhizomes of Curcuma longa linn and Kaempferia galanga extracts

Abstract

Green synthesis is a new, straightforward, environmentally friendly method of creating nanoparticles that is currently receiving interest from the scientific community worldwide. The main objective of this work was to synthesize bio mediated Titanium dioxide and evaluate its antioxidant property. Titanium dioxide nanoparticles were synthesized by using selective medicinal plant extracts. Moreover, bio mediated Titanium dioxide nanoparticles was further characterized by X-Ray Diffraction, UV–Visible Spectroscopy, Fourier Transform Infrared Spectroscopy, Field Emission Scanning Electron Microscopy, Energy Dispersive X-ray Analysis and Antioxidant Activity for analyzing the structural, optical, morphological and antioxidant etc. properties. The X-ray Diffraction pattern reveals the brookite phase of Titanium dioxide nanoparticles. Fourier Transform Infrared Spectroscopy was used to determine the chemical composition of the plant extract. UV–Visible spectrometer shows absorption peak of the synthesized samples in the range of 200–800 nm. Shape of the nanoparticles are revealed by Field Emission Scanning Electron Microscopy and Energy Dispersive X-ray Analysis indicate the presence of Titanium, Carbon and Oxygen in the prepared samples. All the bio mediated Titanium dioxide nanoparticles exhibited size and dose dependent antioxidant activities. 1-Diphenyl-2-picrylhydrazyl assay was carried out to evaluate the antioxidant potential of the synthesized bio mediated nanoparaticles.

Keywords

• Environmentally friendly
• Titanium dioxide
• Medicinal plant extracts
• XRD
• Antioxidant