TITLE:
Defense Mechanism of Renal Functions and Calcium Mixed Mineral Formation in Agar-Agar Gel Medium at Laboratory Environment
AUTHORS:
J. Kishore Kumar, P. Sundaramoorthi
KEYWORDS:
Bio-physical Chemistry, Renal stone, Single Diffusion, Diffusion reaction, Mixing, Growth kinetics
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.8 No.8,
August
20,
2009
ABSTRACT: Calcium phosphates and oxalates are the most frequently observed bio-mineral phases. Many
kinetics studies have been carried out on their crystal formation and dissolution in
supersaturated and under saturated solutions, respectively. Major parameters include
supernatant solution concentration, ionic strength, pH, temperature and solid surface behaviors.
The growth of the calcium phosphate phases such as di-calcium phosphate di-hydrate (DCPD),
octa-calcium phosphate (OCP), hydroxyapatite (HAP), and fluorapatite (FAP) crystals are
observed. The ability of a surface to nucleate mineral phases is closely related to the magnitude
of the interfacial energies. CaSeHPO4 crystals are grown in laboratory growth environments by the author in agar gel medium. Many characterization studies are done using grown crystals, such as FTIR, TGA/DTA, etching, SEM and XRD of the grown crystals are carried out and the results are reported.