## Abstract Biphasic calcium phosphate (BCP) materials are increasingly used to restore bone loss in surgery. Calcium‐deficient apatites (CDA), the precursors of BCP, are closer in structure to biological apatites and can be associated with therapeutic agents to form drug‐delivery systems. The purp
Synthesis and characterisation of calcium deficient apatite
✍ Scribed by M. Vallet-Regí; L.M. Rodríguez-Lorenzo; A.J. Salinas
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 515 KB
- Volume
- 101-103
- Category
- Article
- ISSN
- 0167-2738
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✦ Synopsis
Calcium deficient apatites, which could be used as precursors of the inorganic component of biological apatites, have been synthesised by controlled crystallisation. The influence of the pH and the reaction time in the calcium deficiency and the crystal size of samples have been studied. For determination of Ca/P ratio of as-received apatites, a method based on Rietveld profile analysis of X-ray diffraction data is proposed. The results obtained using this method agree well with those obtained by other classical analytical methods.
📜 SIMILAR VOLUMES
## Abstract In this work, calcium‐deficient apatites (CDA) were synthesized by ammonia hydrolysis reaction of dicalcium phosphate dihydrate (DCPD; CaHPO~4~·2H~2~O) to obtain biphasic calcium phosphates (BCP) without any extraionic substitution. The influence of three parameters was studied: tempera
## Abstract Calcium titanate (CaTiO~3~, perovskite) has been used to determine its apatite nucleation ability and propose a possible nucleation initial step. Measurements of calcium leaching from the calcium titanate surface and phosphate adsorption experiments were carried out separately by using