Boron-doped Biphasic Hydroxyapatite/β-Tricalcium Phosphate for Bone Tissue Engineering.

Biological Trace Element Research
Ahmet Engin PazarçevirenZafer Evis

Abstract

Boron-doped hydroxyapatite/tricalcium phosphates (BHTs) were synthesized to study boron uptake and correlate structural alterations of incremental boron addition (0 to 10 mol%). BHTs with a Ca/P ratio of 1.6 were prepared by a wet precipitation/microwave reflux method, sieved (< 70 μm) and characterized. XRD and FTIR analyses revealed that boron slightly distorted apatite crystal, increased crystallinity (95.78 ± 2.08% for 5BHT) and crystallite size (103.39 ± 23.47 nm for 5BHT) and still, boron addition did not show any further detrimental effects. Total surface area (4.05 ± 0.82 m2/g for 10BHT) and mesoporosity (23.90 ± 7.92 μL/g for 10BHT) were expanded as boron content was increased. Moreover, boron addition made grains become smaller (0.21 ± 0.06 μm for 5BHT) and ordered while hardness (10.51 ± 0.86 GPa for 10BHT) increased. Boron incorporation enhanced bioactivity with significantly highest calcium phosphate deposition and protein adsorption (135.29 ± 29.58 μg on 10BHT). In return, boron favored highest alkaline phosphatase activity (4.80 ± 0.40 MALP/ngDNA.min), intracellular calcium (23.61 ± 0.68 g/gDNA), phosphate (31.84 ± 4.68 g/gDNA), and protein (23.70 ± 3.46 g/gDNA) storage in 5BHT without cytotoxicity (128 ± 18% via...Continue Reading

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Citations

Nov 4, 2020·International Journal of Molecular Sciences·Merve BasAnton Ficai
Mar 15, 2021·Biological Trace Element Research·Eda Çiftci DedeFeza Korkusuz

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Methods Mentioned

BETA
X-ray
scanning electron microscopy
Assay

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