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New Findings on Nanoparticles Described by Investigators at University of Madras

June 24, 2014



By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Nanoparticles is the subject of a report. According to news reporting from Tamil Nadu, India, by NewsRx journalists, research stated, "Silver nanoparticles (Ag NPs) of different sizes have been prepared by chemical reduction method and characterized using UV-vis spectroscopy and transmission electron microscopy (HRTEM). Fluorescence spectral analysis showed that the quenching of fluorescence of textile dyeing waste water (TDW) has been found to decrease with decrease in the size of the Ag NPs."

The news correspondents obtained a quote from the research from the University of Madras, "Experimental results show that the silver nanoparticles can quench the fluorescence emission of adsorbed TDW effectively. The fluorescence interaction between Ag NPs (acceptor) and TDW (donor) confirms the Forster Resonance Energy Transfer (FRET) mechanism. Long range dipole-dipole interaction between the excited donor and ground state acceptor molecules is the dominant mechanism responsible for the energy transfer. Furthermore, photocatalytic degradation of TDW was measured spectrophotometrically by using silver as nanocatalyst under UV light illumination."

According to the news reporters, the research concluded: "The kinetic study revealed that synthesized Ag NPs was found to be effective in degrading TDW."

For more information on this research see: Fluorescence quenching and photocatalytic degradation of textile dyeing waste water by silver nanoparticles. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 2014;127():115-121. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England (see also Nanoparticles).

Our news journalists report that additional information may be obtained by contacting S.R. Kavitha, University of Madras, Dept. of Zool, Madras 600025, Tamil Nadu, India. Additional authors for this research include M. Umadevi, S.R. Janani, T. Balakrishnan and R. Ramanibai.

Keywords for this news article include: Asia, India, Tamil Nadu, Photocatalyst, Nanotechnology, Photocatalytic, Emerging Technologies

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


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Source: Life Science Weekly


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