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Life Sciences

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Published yearly: 

4 Issues

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ISSN: 2320-964X (Online) 

ISSN: 2320-7817  (Print)

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Editor-in-Chief

Dr. Santosh Pawar 


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ORIGINAL ARTICLE

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Int. Journal of Life Sciences, 2017; 5(2): 233-240             |        Available online, June 30, 2017

Synthesis of nano-ZnO by chemical reduction method and their micro biocide activity against bacterial skin pathogens

 

Sharma Preeti and  Nanoty Vijay

 

P. G. Department of Microbiology, Shri R. L. T. College of Science, Akola, Maharashtra, India

Corresponding Author: Email: preeti_akola@yahoo.in

 

Received: 07.03.2017    |     Accepted: 05.04.2017    |      Published :30.06.2017

Zinc oxide nanoparticles (nano-ZnO) were prepared by chemical reduction method. Zinc nitrate was taken as the metal precursor and sodium hydroxide as a reducing agent. The formation of the ZnO nanoparticles (nano-ZnO) was monitored using UV-Vis absorption spectroscopy. The UV-Vis spectroscopy revealed the formation of nano-ZnO by exhibiting the typical surface plasmon absorption maxima at 360-380 nm. The average particle size of ZnO nanoparticles was analysed to be 48nm. We have used XRD, TEM, SEM and UV–Vis spectroscopy to characterize the nanoparticles obtained. The average size and morphology of nano-ZnO were determined by TEM. TEM photographs indicate that the nanopowders consist of well dispersed agglomerates of grains with a narrow size distribution (22.3 to72.8 nm). The synthesized nanoparticles have been structurally characterized by XRD. The peaks in the XRD pattern are in good agreement and no peaks of other impurity crystalline phases were detected. Additionally, the antibacterial activity of the ZnO nanoparticles dispersion was measured by Kirby-Bauer method. The nanoparticles were found to be completely cytotoxic to most prevailing microorganisms in bacterial cutaneous infection like Methicillin Resistant Staphylococcus aureus, Streptococcus pyogenes, Pseudomonas aeruginosa and Klebsiella. The ZnO nanoparticles were found to exhibit antibacterial effects at low concentrations. These nanomaterials were shown to be an effective bactericide & may be suitable for the formulation of new types of bactericidal materials.

 

Key words: Zinc oxide nanoparticles (nano-ZnO), chemicals reduction, XRD, TEM, SEM and UV–Vis spectroscopy, antimicrobial activity, Methicillin Resistant Staphylococcus aureus, Streptococcus pyogenes, Pseudomonas aeruginosa and Klebsiella

 

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Editor: Dr.Arvind Chavhan

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Cite this article as:

Sharma Preeti and Nanoty Vijay (2017) Synthesis of nano-ZnO by chemical reduction method and their micro biocide activity against bacterial skin pathogens; International J. of Life Sciences, 5  (2): 233-240. 

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Acknowledgement:

The authors would like to thank UGC; University Grants Commission, New Delhi, India for their financial support.

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Conflicts of interest: The authors stated that no conflicts of interest.

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Copyright: © 2017 | Author(s), This is an open access article under the terms of the Creative Commons Attribution-Non-Commercial - No Derivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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    INTERNATIONAL JOURNAL OF

    LIFE SCIENCES

    Print ISSN : 2320-7817 

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