SYNTHESIS AND CHARACTERIZATION OF MORINDA CITRIFOLIA LEAF EXTRACT CAPPED ZINC OXIDE NANOPARTICLES AND DEVELOPMENT OF ANTIBACTERIAL ACTIVITY USING CO-PRECIPITATION METHOD.
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Keywords
Nanotechnology; Green synthesis; Zinc oxide nanoparticle; Morinda citrifolia; Antibacterial activity
Abstract
Nanotechnology is relatively a new branch of science that has found a wide range of applications which ranges from energy production to biomedical applications. In present study, ZnO nanoparticles are synthesized using fresh leaf extract Morinda citrifolia by Co-precipitation method. The synthesized nanoparticles are characterized by X-Ray diffraction analysis (XRD), Fourier Transform Infrared spectral analysis (FTIR), UV-Visible spectral analysis (UV-Vis), Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray analysis (EDX) and Antimicrobial activity. From XRD, the particle size of ZnO Nps is determined and is about 15.77 nm. The presence of biomolecules and functional groups are investigated by FTIR analysis. The band gap energy of ZnO Nps is estimated using UV-Vis Spectral analysis and it is approximately 3.31eV. The surface morphology and elemental composition of ZnO Nps is observed under SEM and EDX. The inhibition zone of ZnO Nps of various bacteria and fungi is determined by antimicrobial activity and results increasing zone of inhibition for various concentration of sample.
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