6533b855fe1ef96bd12afe1e

RESEARCH PRODUCT

Formation of Calcium-Deficient Hydroxyapatite via Hydrolysis of Nano-Sized Pure Α-Tricalcium Phosphate

Una RiekstinaLinda VecbiškenaC.k. Thomas YangKarlis Agris Gross

subject

EthanolMaterials scienceBiocompatibilityInorganic chemistryGeneral Engineeringtechnology industry and agriculturecell responsePhosphateα-tricalcium phosphateSolventHydrolysischemistry.chemical_compoundCrystallinityAmorphous calcium phosphatechemistrycalcium-deficient hydroxyapatiteReactivity (chemistry)Amorphous calcium phosphateNuclear chemistry

description

Nano-sized pure α-tricalcium phosphate (α-TCP) fabricated by a novel synthesis approach shows great potential for a faster transformation into calcium-deficient hydroxyapatite (CDHA) than conventionally prepared α-TCP. In this work, amorphous tricalcium phosphate precursors were precipitated and treated with a solvent (water or ethanol), and dried (freeze-dried and oven-dried) before heating at 775 °C. Nanosized α-TCP powders were investigated for their phase composition and crystallinity, particle shape and size, reactivity and cellular biocompatibility. Reaction with water showed faster CDHA formation for freeze-dried powder, at 6 hours, compared to ethanol treated powders, whereas a higher biocompatibility was found for pure α-TCP.

10.4028/www.scientific.net/amr.1117.201https://ortus.rtu.lv/science/lv/publications/20309