Naslov
Biomimetic zinc and magnesium substituted calcium phosphates derived from biogenic source

Autori
Antonia Ressler, Maja Antunović, Matija Cvetnić, Inga Marijanović, Marica Ivanković, Hrvoje Ivanković

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
The Thirteenth Conference for Young Scientists in Ceramics

Mjesto i datum
Novi Sad, Srbija, 16.10.2019. - 19.10.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Podatak o recenziji nije dostupan

Ključne riječi
hydroxyapatite, octacalcium phosphate, zinc, magnesium, Rietveld refinement, biomimetic

Sažetak
Biomimetic multiphase calcium phosphate (CaP) powders substituted with the zinc and magnesium ions were prepared by wet precipitation method, from biogenic source (cuttlefish bone). The synthesised as-prepared powders have been characterised by Fourier transform infrared spectrometry, elemental analysis, X-ray powder diffraction analysis, Rietveld refinement studies, cell cytotoxicity and viability test. Phase transformation and ion release study were analysed at simulated physiological conditions during 7 days. The as-prepared powders were composed of calcium deficient carbonated hydroxyapatite (HAp), octacalcium phosphate (OCP) and amorphous calcium phosphate (ACP). Heat treated powders were composed of HAp, α-tricalcium phosphate (α-TCP) and β-tricalcium phosphate (β-TCP). Along with Zn2+ and Mg2+ substitution, presence of CO32-, Sr2+ and Na+ ions was detected as result of using biogenic precursor of Ca2+ ions. Decrease of lattice parameters is evident in OCP and β-TCP phase for Zn-substitution, while for Mg-substitution in HAp, OCP and β-TCP phase. Zn2+ occupy the Ca(1, 3, 4, 6, 7, 8) sites in OCP and Ca(1, 2, 3, 4) sites in β-TCP, while Mg2+ ion Ca(2) site in HAp and Ca(4, 5) sites in β-TCP.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Kemijsko inženjerstvo, Temeljne tehničke znanosti

POVEZANOST RADA