Kathirvel Ganesan - New J. Chem., 2008, 32, 1326 - 1330, DOI: 10.1039/b803903h "Calcium phosphate nanoparticles as nuclei for the preparation of colloidal calcium phytat

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  Publication Details (including relevant citation   information): New J. Chem., 2008, 32, 1326 - 1330, DOI:   10.1039/b803903h "Calcium phosphate nanoparticles as nuclei for   the preparation of colloidal calcium phytate" Kathirvel Ganesan   and Matthias Epple* Abstract: Colloidal calcium phytate was   prepared by anion-exchange of phosphate by phytate, starting from   calcium phosphate nanoparticles. Scanning electron microscopy   (SEM) showed spherical nanoparticles of narrow size distribution,   in good agreement with dynamic light scattering (DLS) results,   whose diameter could be adjusted between about 40 to 250 nm   depending on the employed synthesis conditions. The particle   surface is covered by phytate anions as indicated by the strongly   negative zeta potential of -40 to -50 mV. The preparation of a   stable colloid was only possible within a narrow range of the   ratio of calcium to phytate. Infrared spectroscopy, X-ray   diffraction and elemental analysis showed that the particles   consisted of X-ray amorphous calcium phytate. The colloidal   dispersions were stable for about two weeks before precipitation   occurred.

  Abstract: null

  Address (URL): http://www.rsc.org/publishing/journals/NJ/article.asp?doi=b803903h

 

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