News Column

New Nanoparticles Findings from University of Peradeniya Described

June 24, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Nanoparticles have been published. According to news reporting originating in Peradeniya, Sri Lanka, by NewsRx journalists, research stated, "The synthesis and characterization of ZnO-nanoparticle-incorporated natural rubber latex foam (NRLF) are described in this article. ZnO nanoparticles were added as the primary gelling agent by the replacement of the microsized ZnO particles, whereas the control sample of the NRLF was made without the addition of any ZnO particles."

The news reporters obtained a quote from the research from the University of Peradeniya, "ZnO nanopowder was evaluated by X-ray diffraction (XRD), whereas the aqueous dispersion of nano-ZnO was evaluated by transmission electron microscopy (TEM) micrograph analysis. The modified NRLF materials were evaluated by scanning electron microscopy (SEM)-energy-dispersive X-ray (EDX) analysis and XRD analysis. The antibacterial activities of the modified NRLF samples were evaluated quantitatively and qualitatively by antibacterial susceptibility tests against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria. We found that the XRD peaks matched perfectly with reference code 98-002-6593, which was the hexagonal phase. The particle sizes given by TEM image analysis were less than 60 nm. Most of the XRD peaks obtained for the modified NRLF matched with that of the ZnO nanopowder; this proved the presence of nano-ZnO in the modified NRLF. Further, it was proven by SEM and EDX analysis."

According to the news reporters, the research concluded: "The NRLF modified by nanosized ZnO inhibited the growth of the so-called bacteria in a very strong manner."

For more information on this research see: Enhancement of the Antibacterial Activity of Natural Rubber Latex Foam by the Incorporation of Zinc Oxide Nanoparticles. Journal of Applied Polymer Science, 2014;131(1):112-119. Journal of Applied Polymer Science can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell -; Journal of Applied Polymer Science -

Our news correspondents report that additional information may be obtained by contacting W. Rathnayake, University of Peradeniya, Dept. of Mol Biol & Biotechnol, Fac Sci, Peradeniya, Sri Lanka. Additional authors for this research include H. Ismail, A. Baharin, I. Bandara and S. Rajapakse (see also Nanoparticles).

Keywords for this news article include: Asia, Sri Lanka, Chemicals, Chemistry, Peradeniya, Zinc Oxide, Nanotechnology, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

For more stories covering the world of technology, please see HispanicBusiness' Tech Channel

Source: Life Science Weekly

Story Tools Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters