Electrochemical Studies and Antimicrobial Properties of Synthesized Green Mediated Metal Oxide Nanoparticles
type: CreativeWork
description: Nanoparticles synthesized through alternate biological methods are known to be more biocompatible with no toxic effects. The biological method of synthesis relies on the ability of organic compounds to reduce metal ions and stabilize them into nanoparticles. In this study, a green approach was reported for the fabrication of zinc and iron oxide nanoparticles using extracts from leaf and flower of pomegranate (Punica granatum) plant. The obtained extracts were evaluated for phytochemicals that are expected to function as capping, reducing and stabilizing agents during synthesis. Primary phytochemical analysis of the extracts indicated the presence of bioactive components including phenol, tannins, flavonoids and alkaloids. The biologically stable nanoparticles obtained were characterized spectroscopically and electrochemically. X-ray diffraction analysis (XRD) of the particles revealed the elemental components and nature of the synthesized particles. The XRD pattern spectrum obtained indicated a crystalline structure for the zinc oxide nanoparticles and an amorphous nature for the iron oxide nanoparticles. Morphology of the nanoparticles as shown by Scanning electron microscopy (SEM) was unevenly shaped for the ZnO-NPs and evenly spherical for the Fe₃O₄-NPs. The functional groups involved in stabilization, reduction and capping were confirmed using FTIR. Energy Dispersive X-Ray (EDX) analysis of the synthesized nanoparticles revealed compositions the oxides with peaks of zinc and oxygen components for the ZnO-NPs and iron and oxygen for the Fe₃O₄-NPs. Confirmation of the nanoparticles by UV-Vis analysis showed absorption bands of 284 nm and 357 nm for pomegranate leaf and flower extract mediated ZnO-NPs respectively while Fe₃O₄-NPs absorbance was at 308 nm and 310 nm respectively for leaf and flower mediated nanoparticles. The nanoparticles were further characterized electrochemically using a cyclic voltammetry tool to evaluate their electrochemical properties. The V…
abstract: Nanoparticles synthesized through alternate biological methods are known to be more biocompatible with no toxic effects. The biological method of synthesis relies on the ability of organic compounds to reduce metal ions and stabilize them into nanoparticles. In this study, a green approach was reported for the fabrication of zinc and iron oxide nanoparticles using extracts from leaf and flower of pomegranate (Punica granatum) plant. The obtained extracts were evaluated for phytochemicals that are expected to function as capping, reducing and stabilizing agents during synthesis. Primary phytochemical analysis of the extracts indicated the presence of bioactive components including phenol, tannins, flavonoids and alkaloids. The biologically stable nanoparticles obtained were characterized spectroscopically and electrochemically. X-ray diffraction analysis (XRD) of the particles revealed the elemental components and nature of the synthesized particles. The XRD pattern spectrum obtained indicated a crystalline structure for the zinc oxide nanoparticles and an amorphous nature for the iron oxide nanoparticles. Morphology of the nanoparticles as shown by Scanning electron microscopy (SEM) was unevenly shaped for the ZnO-NPs and evenly spherical for the Fe₃O₄-NPs. The functional groups involved in stabilization, reduction and capping were confirmed using FTIR. Energy Dispersive X-Ray (EDX) analysis of the synthesized nanoparticles revealed compositions the oxides with peaks of zinc and oxygen components for the ZnO-NPs and iron and oxygen for the Fe₃O₄-NPs. Confirmation of the nanoparticles by UV-Vis analysis showed absorption bands of 284 nm and 357 nm for pomegranate leaf and flower extract mediated ZnO-NPs respectively while Fe₃O₄-NPs absorbance was at 308 nm and 310 nm respectively for leaf and flower mediated nanoparticles. The nanoparticles were further characterized electrochemically using a cyclic voltammetry tool to evaluate their electrochemical properties. The V…
author: Ifeanyichukwu, U.L.
language: en
keywords: Antimicrobial activity, Electrochemical Characterisation, Spectroscopic Characterization, Iron oxide nanoparticle, Zinc oxide nanoparticle
date published: 2020
date modified: 2026-07-24T03:33:45Z
provider: North-West University (South Africa)
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: North-West University (South Africa)

PropertyValue
property ID: Handle
value: http://hdl.handle.net/10394/35590