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Investigators from McGill University Have Reported New Data on Nanoparticles (Extracellular bio-production and characterization of small...

August 12, 2014



Investigators from McGill University Have Reported New Data on Nanoparticles (Extracellular bio-production and characterization of small monodispersed CdSe quantum dot nanocrystallites)

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 out of Montreal, Canada, by NewsRx editors, the research stated, "Engineered nanoparticles of diverse forms are being profoundly used for various applications and demand ecologically benign synthesis processes. Conventional chemical methods employed for the syntheses of nanoparticles are environmentally unfriendly and energy intensive."

Our news journalists obtained a quote from the research from McGill University, "Biologically inspired biofabrication approaches that utilize naturally existing microorganisms or plant extracts or biomaterials might overcome these issues. The present investigation for the first time shows the synthesis of small and monodispersed cadmium selenide nanoparticles utilizing the plant pathogenic fungus, Helminthosporum solani upon incubating with an aqueous solution of CdCl2 and SeCl4 under ambient conditions. Multiple physical characterizations involving ultraviolet visible and photoluminescence spectroscopy, transmission electron microscopy, selected area electron diffraction and X-ray photoelectron spectroscopy confirmed the production, purity, optical and surface characteristics, crystalline nature, size and shape distributions, and elemental composition of the nanoparticles. Pluralities of the particles are monodisperse spheres with a mean diameter of 5.5 +/- 2 nm, are hydrophilic, highly stable with a broad photoluminescence and 1% quantum yield."

According to the news editors, the research concluded: "This approach provides an alternative facile route for the biofabrication of quantum dot that is reliable, environmentally friendly, and lends itself directly for the creation of fluorescent biological labels."

For more information on this research see: Extracellular bio-production and characterization of small monodispersed CdSe quantum dot nanocrystallites. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 2014;130():344-349. 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 A.K. Suresh, McGill University, Dept. of Biomed Engn, Montreal, PQ H3A 2B4, Canada.

Keywords for this news article include: Quebec, Canada, Montreal, Quantum Dots, Nanotechnology, Emerging Technologies, North and Central America

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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