Nanocrystalline Zn and SO binary doped fluorohydroxyapatite: A novel biomaterial with enhanced osteoconductive and osteoinconductive properties.

Nanocrystalline Zn and SO binary doped fluorohydroxyapatite: A novel biomaterial with enhanced osteoconductive and osteoinconductive properties.

Alshemary, Ammar Z;Pazarçeviren, Engin Ahmet;Dalgic, Ali Deniz;Tezcaner, Ayşen;Keskin, Dilek;Evis, Zafer;
materials science & engineering c, materials for biological applications 2019 Vol. 104 pp. 109884
290
alshemary2019nanocrystallinematerials

Abstract

In this study, we have successfully doped hydroxyapatite (HA) with zinc (Zn), sulphate (SO) and fluoride (F) ions to develop a new composition of bioceramic, Ca Zn(PO)(SO)(OH)F(SO), (x = 0, 0.2, 0.6, 1.0, y = 0, 0.5 and z = 0,1.0 mol), using wet precipitation method. The obtained materials were analysed using XRD, FTIR, FESEM, and XPS techniques to investigate the phase purity, particle morphology and elemental composition, respectively. A model anticancer drug (Doxorubicin, DOX) was loaded onto the surface of the Zn/SO-FHA materials. About 100% loading of DOX with a controlled release profile was obtained. Degradation of materials in Simulated body fluid (SBF) was greatly improved with the incorporation of Zn/SO ions in comparison to HA/FHA, which makes it highly bioactive materials. In vitro cell viability and adhesion of Human fetal osteoblast (hFOB) cell were investigated. Cell viability has demonstrated that the hFOB cells proliferated at a high rate on Zn/SO-FHA materials, confirming the in vitro biocompatibility of the materials. Alkaline phosphatase (ALP) activity and intracellular calcium deposition of hFOB cells seeded on 1ZnSO-FHA disc surface was statistically higher than observed on pure HA and FHA discs, indicating that hFOB cells differentiated into mature osteoblasts on 1Zn/SO-FHA disc surfaces. Taken together, our results suggest that HA substituted by (Zn, 0.2 mol), (SO, 0.5 mol) and (F, 1 mol) (1Zn/SO-FHA) material was a promising material for hard tissue scaffolds.

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