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Investigators from Peking University Release New Data on Structural Biology

February 25, 2014



By a News Reporter-Staff News Editor at Life Science Weekly -- Research findings on Life Science Research are discussed in a new report. According to news reporting out of Beijing, People's Republic of China, by NewsRx editors, research stated, "Systematic studies on the Mg distributions, the crystal orientations, the formation mechanisms and the mechanical properties of biogenic high-Mg calcites in different marine organisms were summarized in detail in this review. The high-Mg calcites in the hard tissues of marine organisms mentioned generally own a few common features as follows."

Our news journalists obtained a quote from the research from Peking University, "Firstly, the Mg distribution is not uniform in most of the minerals. Secondly, high-Mg calcite biominerals are usually composed of nanoparticles that own almost the same crystallographic orientations and thus they behave like single crystals or mesocrystals. Thirdly, the formation of thermodynamically unstable high-Mg calcites in marine organisms under mild conditions is affected by three key factors, that is, the formation of amorphous calcium (magnesium) carbonate precursor, the control of polymorph via biomolecules and the high Mg/Ca ratios in modern sea. Lastly, the existence of Mg ions in the Mg-containing calcite may improve the mechanical properties of biogenic minerals. Furthermore, the key progress in the synthesis of high-Mg calcites in the laboratory based on the formation mechanisms of the biogenic high-Mg calcites was reviewed. Many researchers have realized the synthesis of high-Mg calcites in the laboratory under ambient conditions with the help of intermediate amorphous phase, mixed solvents, organic/inorganic surfaces and soluble additives."

According to the news editors, the research concluded: "Studies on the structural analysis and formation mechanisms of thermodynamically unstable biogenic high-Mg calcite minerals may shed light on the preparation of functional materials with enhanced mechanical properties."

For more information on this research see: Biogenic and synthetic high magnesium calcite - A review. Journal of Structural Biology, 2014;185(1):1-14. Journal of Structural Biology can be contacted at: Academic Press Inc Elsevier Science, 525 B St, Ste 1900, San Diego, CA 92101-4495, USA. (Elsevier - www.elsevier.com; Journal of Structural Biology - www.elsevier.com/wps/product/cws_home/622900)

Our news journalists report that additional information may be obtained by contacting X. Long, Peking University, Coll Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing Natl Lab Mol Sci, Beijing 100871, People's Republic of China. Additional authors for this research include Y.R. Ma and L.M. Qi (see also Life Science Research).

Keywords for this news article include: Asia, Beijing, Life Science Research, People's Republic of China

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Source: Life Science Weekly


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