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Functional Behaviour of Polyethylene-ZnO Nanocomposites

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Hybrid inorganic–organic nanocomposite materials are of current interest because of their multi-functionality, ease of processability, and potential for large-scale manufacturing. The focus of this study is to ascertain the functional properties of the commodity plastic impregnated with ZnO/starch nanocomposites. ZnO/starch nanocomposites was prepared by a simple process using zinc nitrate and sodium hydroxide as precursor and soluble starch as stabilizing agent. The peak obtained in terms of wavelength from UV-visible spectrum is converted in terms of particle size using effective mass approximation method. The plastic sheet of 50 m thickness was prepared by hot blow method using 1:1 ratio of HDPE:LLDPE and 1% concentration of ZnO/starch nanocomposites. The morphological analysis was carried out using both optical and scanning electron microscopy. For antibacterial activity, evaluation was carried out with Staphylococcus aureus (AATCC 6538), a Gram-positive bacterium and Klebsiella pneumoniae (AATCC 4352), a Gram-negative bacterium. Excellent UV blocking ability was noticed in nanocomposites when compared to the control.
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Keywords: ANTIBACTERIAL ACTIVITY; NANOCOMPOSITES; RAMAN SPECTRA; UV-BLOCKING

Document Type: Research Article

Publication date: 2008-08-01

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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