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Researchers at Texas A&M University Release New Data on Apatites (Designed synthesis of hydroxyapatite nanostructures: bullet-like single crystal...

July 4, 2014



Researchers at Texas A&M University Release New Data on Apatites (Designed synthesis of hydroxyapatite nanostructures: bullet-like single crystal and whiskered hollow ellipsoid)

By a News Reporter-Staff News Editor at Health & Medicine Week -- Fresh data on Apatites are presented in a new report. According to news reporting originating from College Station, Texas, by NewsRx correspondents, research stated, "Hydroxyapatite (HAp) nanostructures of whiskered hollow ellipsoid and bullet-like single crystal were synthesized under mild reaction conditions by using a template-free 'one pot' synthetic method. Immersing calcium carbonate precursor into ammonium phosphate solution resulted in the HAp phase."

Our news editors obtained a quote from the research from Texas A&M University, "Formed HAp crystals were characterized by X-ray diffraction and transmission electron microscopy techniques. The stability and phase composition of calcium carbonate influenced the morphology and crystallinity of HAp. The transformation of the most stable calcite precursor yielded the bullet-like HAp single crystal of 300-600 nm in length, similar to 0 nm in tip diameter and similar to 80 to similar to 100 nm in bottom diameter. The metastable vaterite precursor showed the formation of the whiskered hollow ellipsoid nanostructures composed of HAp nanorods of similar to 10 nm in diameter. The driving force for the whole transformation process was the difference in solubility of calcium carbonate and HAp."

According to the news editors, the research concluded: "At the same time, Kirkendall effect and Ostwald ripening played important roles in the formation of the different HAp nanostructures."

For more information on this research see: Designed synthesis of hydroxyapatite nanostructures: bullet-like single crystal and whiskered hollow ellipsoid. Journal of Materials Science-Materials in Medicine, 2014;25(6):1395-1401. Journal of Materials Science-Materials in Medicine can be contacted at: Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands (see also Apatites).

The news editors report that additional information may be obtained by contacting Y.J. Zhang, Texas A&M University, Sch Rural Public Hlth, Dept. of Environm & Occupat Hlth, College Stn, TX 77843, United States. Additional authors for this research include J.H. Wang and V.K. Sharma.

Keywords for this news article include: Texas, Phosphates, United States, College Station, Hydroxyapatites, Phosphoric Acids, 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: Health & Medicine Week


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