repair of the orbital wall fractures in rabbit animal model using nanostructured hydroxyapatite-based implant
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ID: 235846
2016
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Abstract
Cellular uptake and cytotoxicity of nanostructured hydroxyapatite (nanoHAp) are dependent on its physical parameters. Therefore, an understanding of both surface chemistry and morphology of nanoHAp is needed in order to be able to anticipate its in vivo behavior. The aim of this paper is to characterize an engineered nanoHAp in terms of physico-chemical properties, biocompatibility, and its capability to reconstitute the orbital wall fractures in rabbits. NanoHAp was synthesized using a high pressure hydrothermal method and characterized by physico-chemical, structural, morphological, and optical techniques. X-ray diffraction revealed HAp crystallites of 21 nm, while Scanning Electron Microscopy (SEM) images showed spherical shapes of HAp powder. Mean particle size of HAp measured by DLS technique was 146.3 nm. Biocompatibility was estimated by the effect of HAp powder on the adhesion and proliferation of mesenchymal stem cells (MSC) in culture. The results showed that cell proliferation on powder-coated slides was between 73.4% and 98.3% of control cells (cells grown in normal culture conditions). Computed tomography analysis of the preformed nanoHAp implanted in orbital wall fractures, performed at one and two months postoperative, demonstrated the integration of the implants in the bones. In conclusion, our engineered nanoHAp is stable, biocompatible, and may be safely considered for reconstruction of orbital wall fractures.
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gradinaru2016nanomaterialsrepair
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| Authors | ;Sinziana Gradinaru;Laura Madalina Popescu;Roxana Mioara Piticescu;Sabina Zurac;Radu Ciuluvica;Alexandrina Burlacu;Raluca Tutuianu;Sorina-Nicoleta Valsan;Adrian Mihail Motoc;Liliana Mary Voinea |
| Journal | progress in neuro-psychopharmacology & biological psychiatry |
| Year | 2016 |
| DOI |
10.3390/nano6010011
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| URL | |
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