NDLI: Synthesis of nano-sized biphasic calcium phosphate ceramics with spherical shape by flame spray pyrolysis.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Cho, Jung Sang Ko, You Na Koo, Hye Young Kang, Yun Chan
Description	Author Affiliation: Cho JS ( Department of Chemical Engineering, Konkuk University, Seoul, Korea.)
Abstract	Nanometer size biphasic calcium phosphate (BCP) powders with various Ca/P molar ratios satisfied with appropriate phase ratios of HA/beta-TCP were prepared by high temperature flame spray pyrolysis process. The BCP powders had spherical shapes and narrow size distributions irrespective of the ratios of Ca/P. The mean size of the BCP powders measured from the TEM image was 38 nm. The composition ratio of Ca/P was controlled from 1.500 to 1.723 in the spray solution, and required phase ratios of HA/TCP are controlled systematically. The calcium dissolution of the pellets obtained from the BCP powders directly prepared by flame spray pyrolysis in buffer solution increased with the decrease of Ca/P ratios except with the Ca/P ratio of 1.713. The pellet surface with Ca/P ratio of 1.500, which consisted of beta-TCP, was eroded dramatically for 7 days. On the other hand, the pellet surface with Ca/P ratio of 1.667 was stable and did not disintegrate after immersion in Tris-HCl buffer solution based on the SEM observation.
File Format	HTM / HTML
ISSN	09574530
Issue Number	4
Volume Number	21
e-ISSN	15734838
Journal	Journal of Materials Science: Materials in Medicine
Language	English
Publisher	Springer
Publisher Date	2010-04-01
Publisher Place	United States
Access Restriction	Subscribed
Subject Keyword	Discipline Biomedical Engineering Calcium Phosphates Chemistry Ceramics Chemical Synthesis Biocompatible Materials Flame Ionization Instrumentation Methods Hot Temperature Materials Testing Microscopy, Electron, Scanning Models, Biological Molecular Conformation Nanostructures Osmolar Concentration Particle Size Powders Surface Properties Evaluation Studies Journal Article
Content Type	Text
Resource Type	Article
Subject	Biomaterials Biophysics Bioengineering Biomedical Engineering

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