By a News Reporter-Staff News Editor at Life Science Weekly -- Researchers detail new data in Amino Acids. According to news reporting from Montreal, Canada, by NewsRx journalists, research stated, "We report a simple way to obtain polymer-coated multiwalled boron nitride nanotubes (BNNTs) conducted under mild conditions compatible with fragile biopolymers. The approach converts aggregated pristine BNNTs into colloidally stable dispersions in water without requiring treatment at high temperature or in strongly oxidative conditions."
The news correspondents obtained a quote from the research from the University of Montreal, "The method relies on our experimental observation that glycine (NH2-CH2-COOH, Gly) interacts with BNNTs, in accordance with theoretical calculations. The role of glycine in this process is 2-fold: the Gly amine group binds to the B-sites of BNNTs, while the Gly carboxylic acid function provides ionic anchoring sites for interactions with polyelectrolytes. The formation of Gly-BNNTs proved to be essential, since they readily disperse in water as disentangled objects and spontaneously adsorb polycations, such as chitosan (CH), polyanions, such as hyaluronan (HA), and polyzwitterionic polymers, such as chitosan-phosphorylcholine (CH-PC). Treatment of aqueous dispersions of coarsely coated BNNTs with an immiscible solvent (hexane) resulted in the complete coverage of the BNNT surfaces via oil/water interfacial assembly."
According to the news reporters, the research concluded: "This work provides a rapid, mild, and scalable route to water-dispersible biofunctional BNNTs that may serve as drug delivery vehicles or scaffolds in tissue engineering."
For more information on this research see: Facile and Mild Strategy Toward Biopolymer-Coated Boron Nitride Nanotubes via a Glycine-Assisted Interfacial Process. Journal of Physical Chemistry C, 2013;117(38):19568-19576. Journal of Physical Chemistry C can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Journal of Physical Chemistry C - www.pubs.acs.org/journal/jpccck)
Our news journalists report that additional information may be obtained by contacting Y.T.R. Lau, University of Montreal, Dept. of Chim, Montreal, PQ H3C 3J7, Canada. Additional authors for this research include M. Yamaguchi, X. Li, Y. Bando, D. Golberg and F.M. Winnik (see also Amino Acids).
Keywords for this news article include: Quebec, Canada, Glycine, Montreal, Nanotube, Chemicals, Chemistry, Treatment, Amino Acids, Boron Nitride, Nanotechnology, Emerging Technologies, North and Central America
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