6533b7d8fe1ef96bd1269988

RESEARCH PRODUCT

Thermokinetic Investigation of the Drying Conditions on Amorphous Calcium Phosphate

Mihails HaļitovsAgnese BranguleKarlis Agris GrossLīga AvotiņaArtūrs ZariņšGunta ĶIzāne

subject

0303 health sciencesChemistryMechanical EngineeringInorganic chemistry02 engineering and technologyActivation energy021001 nanoscience & nanotechnologyArrhenius plot03 medical and health sciencesMechanics of MaterialsGeneral Materials ScienceAmorphous calcium phosphate0210 nano-technologyFtir pas030304 developmental biology

description

The present work investigated dried calcium phosphate powders which still retain an amorphous or poorly crystalline structure under a variety of conditions. In previous studies, freeze-drying was found to be the optimum drying condition. However, several publications, as well as our previous studies, have shown that calcium phosphate amorphous, or a poorly crystalline structure, can retain their structure even if the samples are dried immediately after synthesis up to 200°C. In our study, we used the thermokinetic studies FTIR and XRD and showed that the samples are amorphous, or poorly crystalline, but were unable to answer the questions: Is there a difference between the differently dried amorphous calcium phosphates? What are the optimum drying conditions under which the amorphous calcium phosphate (ACP) structure loses the physically bounded water, but still retains the chemically bounded water?

10.4028/www.scientific.net/kem.758.204http://dx.doi.org/10.4028/www.scientific.net/kem.758.204