BIOACTIVITY ENHANCEMENT OF HYDROXYAPATITE BY SILICON SUBSTITUTION

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AMINIAN A.; SOLATI HASHJIN M.; SAMADI KOUCHAKSARAEI ALI; BAKHSHI F.; FARZADI A.

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Journal: Pathobiology Research Year:2010 | Volume:13 | Issue:3 Page(s): 11-21

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Title

BIOACTIVITY ENHANCEMENT OF HYDROXYAPATITE BY SILICON SUBSTITUTION

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Keywords

HYDROTHERMALQ2

HYDROXYAPATITEQ3

SUBSTITUTIONQ3

SILICONQ3

BIOACTIVITYQ2

Abstract

Objective: SILICON is an effective element in bone biomineralization; hence Si-substituted HYDROXYAPATITE can be a relevant bioceramic as bone materials SUBSTITUTION.Materials and Methods: Stoichiometric HYDROXYAPATITE (HA) and Si-substituted HYDROXYAPATITE (Si-HA) with different contents of Si SUBSTITUTION were synthesized successfully by a HYDROTHERMAL method using Ca(NO3)2, (NH4)3PO4 or (NH4)2HPO4 and Si(OCH2CH3)4 (TEOS) as starting materials.Results: Crystalline Phases, chemical composition, microstructure and morphology of synthesized powders were investigated using X-ray diffraction (XRD), Fourier transform IR spectroscopy (FTIR), inductively coupled plasma AES (ICP-AES) and scanning electron microscopy (SEM) techniques. The results proved SILICON SUBSTITUTION in HYDROXYAPATITE structure and revealed that the SUBSTITUTION of phosphate groups by silicate groups caused some OH- loss to maintain charge balance and the lattice parameters slightly changed with respect to stoichiometric HA.Conclusion: Si-incorporation reduces the crystallites size of Si-HA and crystallinity, thus the solubility of Si-HA powders increases, and as a result Si- SUBSTITUTION has improved BIOACTIVITY behavior of HA. Based on in-vitro tests; soaking and incubating the specimens in simulated body fluid (SBF) and MTT assays (Dimethylthiazol assay), Si-substituted HYDROXYAPATITE is more bioactive than pure HYDROXYAPATITE.

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APA: Copy

AMINIAN, A., SOLATI HASHJIN, M., SAMADI KOUCHAKSARAEI, ALI, BAKHSHI, F., & FARZADI, A.. (2010). BIOACTIVITY ENHANCEMENT OF HYDROXYAPATITE BY SILICON SUBSTITUTION. PATHOBIOLOGY RESEARCH (MODARES JOURNAL OF MEDICAL SCIENCES), 13(3), 11-21. SID. https://sid.ir/paper/81214/en

Vancouver: Copy

AMINIAN A., SOLATI HASHJIN M., SAMADI KOUCHAKSARAEI ALI, BAKHSHI F., FARZADI A.. BIOACTIVITY ENHANCEMENT OF HYDROXYAPATITE BY SILICON SUBSTITUTION. PATHOBIOLOGY RESEARCH (MODARES JOURNAL OF MEDICAL SCIENCES)[Internet]. 2010;13(3):11-21. Available from: https://sid.ir/paper/81214/en

IEEE: Copy

A. AMINIAN, M. SOLATI HASHJIN, ALI SAMADI KOUCHAKSARAEI, F. BAKHSHI, and A. FARZADI, “BIOACTIVITY ENHANCEMENT OF HYDROXYAPATITE BY SILICON SUBSTITUTION,” PATHOBIOLOGY RESEARCH (MODARES JOURNAL OF MEDICAL SCIENCES), vol. 13, no. 3, pp. 11–21, 2010, [Online]. Available: https://sid.ir/paper/81214/en

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