By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Nanoparticles. According to news originating from Bangalore, India, by NewsRx correspondents, research stated, "Brust-Schiffrin synthesis (BSS) of metal nanoparticles has emerged as a major breakthrough in the field for its ability to produce highly stable thiol functionalized nanoparticles. In this work, we use a detailed population balance model to conclude that particle formation in BSS is controlled by a new synthesis route: continuous nucleation, growth, and capping of particles throughout the synthesis process."
Our news journalists obtained a quote from the research from the Indian Institute of Science, "The new mechanism, quite different from the others known in the literature (classical LaMer mechanism, sequential nucleation-growth-capping, and thermodynamic mechanism), successfully explains key features of BSS, including size tuning by varying the amount of capping agent instead of the widely used approach of varying the amount of reducing agent. The new mechanism captures a large body of experimental observations quantitatively, including size tuning and only a marginal effect of the parameters otherwise known to affect particle synthesis sensitively. The new mechanism predicts that, in a constant synthesis environment, continuous nucleation-growth-capping mechanism leads to complete capping of particles (no more growth) at the same size, while the new ones are born continuously, in principle leading to synthesis of more monodisperse particles."
According to the news editors, the research concluded: "This prediction is validated through new experimental measurements."
For more information on this research see: On the Mechanism of Metal Nanoparticle Synthesis in the Brust-Schiffrin Method. Langmuir, 2013;29(31):9863-9873. Langmuir can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Langmuir - www.pubs.acs.org/journal/langd5)
The news correspondents report that additional information may be obtained from S.R.K. Perala, Indian Inst Sci, Dept. of Chem Engn, Bangalore 560012, Karnataka, India (see also Nanoparticles).
Keywords for this news article include: Asia, India, Bangalore, Nanotechnology, Emerging Technologies
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