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Mostafa AA, Oudadesse H, El-Sayed MMH. A quantitative approach for studying the bioactivity of nanohydroxyapatite/gold composites. J Biomed Mater Res A 2015; 103:3483-92. [DOI: 10.1002/jbm.a.35494] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 04/25/2015] [Accepted: 04/29/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Amany A. Mostafa
- Solid-State Chemistry; Université de Rennes 1, UMR CNRS 6226; 263 av. du général leclerc 35042 Rennes Cedex France
- Biomaterials Department, National Research Centre NRC; Cairo Egypt
- Nanomedicine & Tissue Engineering Lab; Medical Research Center of Excellence (MRCE), NRC; Cairo Egypt
| | - Hassane Oudadesse
- Solid-State Chemistry; Université de Rennes 1, UMR CNRS 6226; 263 av. du général leclerc 35042 Rennes Cedex France
| | - Mayyada M. H. El-Sayed
- Nanomedicine & Tissue Engineering Lab; Medical Research Center of Excellence (MRCE), NRC; Cairo Egypt
- Chemical Engineering Department; National Research Centre; Al Bohooth St. Cairo Egypt
- Chemistry Department; American University in Cairo; New Cairo Egypt
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Nano-hydroxyapatite formation via co-precipitation with chitosan-g-poly(N-isopropylacrylamide) in coil and globule states for tissue engineering application. Front Chem Sci Eng 2013. [DOI: 10.1007/s11705-013-1355-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Fabrication, characterization and invitro bioactivity evaluation of QPSU/TiO2 composite membranes. JOURNAL OF POLYMER RESEARCH 2011. [DOI: 10.1007/s10965-010-9552-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
The aim of the work is to establish if maleic anhydride copolymer acts as a grain growth modulator and/or as a biocompatible functionalisation agent for hydroxyapatite. Experimental work was developed in three directions: nanocomposites synthesis, nanocomposites characterization and citotoxicity tests on nanocomposites. Maleic anhydride copolymer – HAp nanocomposites were prepared by in situ functionalisation in hydrothermal conditions and were characterized by chemical quantitative analysis, XRD, FT-IR, SEM, specific surface area and picnometric densities. Chemical bonding between the copolymer carboxyl groups and calcium ions of HAp induced a peak of 1577 cm-1 on the FT-IR analysis. Following the evolution of this characteristic peak with the hydrothermal synthesis conditions (different temperatures and pressures) and corroborates the results with XRD and SEM analysis it was pointed out the copolymer grain growth modulator behaviour. Citotoxicity studies in vitro on mice fibroblast cultures were performed. The results proved the biocompatibility of new hybrid –polymer nanocomposites.
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