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International Letters of Chemistry, Physics and Astronomy
Volume 63

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Effect of Poly Ethylene Glycol on CuO Nanoparticles and its Antibacterial Application

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Abstract:

Pure CuO nanoparticles and chemically-precipitated Poly Ethylene Glycol (PEG) used as a capping agent CuO nanocrystal continuum (0.1, 0.2, 0.3, 0.4, 0.5 gm) was anatomized for structural and morphological research using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and Field - Emission Scanning Electron Microscopy (FE-SEM). Their X-ray Diffraction (XRD) analysis manifested monoclinic crystallinity in pure and PEG-capped CuO nanorods, with an average crystallite size of 21.63nm and 13-16nm respectively. The morphological analysis revealed their structural conformation. The FT-IR spectrum affirmed the presence of Cu-O bonds. The optical property of the aforesaid nanorods was studied by UV-Visible reflectance (UV-Vis DRS). The UV analysis showed that all the capped products show signs of good optical quality in the UV region and also the absorption edge was blue shifted with a band gap of 1.85 eV for 0.4gm PEG capped as results of quantum confinement effect. The antibacterial properties of the as-prepared nanostructures investigated for various human pathogens using disc diffusion method. The result showed the significant antibacterial activity both gram positive and gram negative bacteria.

Info:

Periodical:
International Letters of Chemistry, Physics and Astronomy (Volume 63)
Pages:
111-118
DOI:
10.18052/www.scipress.com/ILCPA.63.111
Citation:
T. Hemalatha and S. Akilandeswari, "Effect of Poly Ethylene Glycol on CuO Nanoparticles and its Antibacterial Application", International Letters of Chemistry, Physics and Astronomy, Vol. 63, pp. 111-118, 2016
Online since:
Jan 2016
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