PREPARATION, CHARACTERIZATION AND EVALUATION OF MECHANICAL AND BIOLOGICAL CHARACTERISTICS OF HYBRID APATITE/ GELATIN- CHITOSAN NANOCOMPOSITE BONE SCAFFOLD VIA BIOMIMETIC METHOD

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RAZ M.; MOZTARZADEH F.; SHOKRGOZAR M.A.; ASHURI M.; TAHRIRI M.

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Journal: ADVANCED MATERIALS IN ENGINEERING (ESTEGHLAL) Year:2013 | Volume:32 | Issue:2 Page(s): 25-42

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Title

PREPARATION, CHARACTERIZATION AND EVALUATION OF MECHANICAL AND BIOLOGICAL CHARACTERISTICS OF HYBRID APATITE/ GELATIN- CHITOSAN NANOCOMPOSITE BONE SCAFFOLD VIA BIOMIMETIC METHOD

Author(s)

Keywords

NANOCOMPOSITEQ2

BIOMIMETICQ3

SCAFFOLDQ2

BONEQ3

GELATIN- CHITOSANQ3

APATITEQ2

Abstract

In this project, we prepared BIOMIMETIC NANOCOMPOSITE SCAFFOLDs from gelatin and chitosan and hydroxyapatite and subsequently the SCAFFOLDs were evaluated by common used bulk technique. For this purpose, the NANOCOMPOSITE hydrogel/apatite engineering SCAFFOLDs were fabricated using applied BIOMIMETIC method accompanied with freeze drying technique. The APATITE was precipitated using double diffusion mechanism within gelatin hydrogel in similar pH and temperature to the human body. Chitosan initial percentage (20, 30 and 40%) was set as variables. NANOCOMPOSITEs were soaked in glutaraldehyde solution in order to enhance mechanical properties and make them insoluble in water. Diffusion of calcium and phosphate from lateral hydrogel into the middle hydrogel caused formation of parallel white layer-formed precipitate. Analysis of precipitates formed within middle hydrogel for the samples, showed that detected materials are composed of carbonated hydroxyapatite and dicalcium phosphate dihydrate (DCPD, brushite). Also, mechanical behavior obtained for the SCAFFOLDs were comparable with spongy BONE. With increasing chitosan in the composite SCAFFOLD, the water up-take was increased from 379 to 661%. Phase composition, microstructure and structural groups in the composite samples were also characterized by X-Ray Diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infra-red (FTIR) analyses. Eventually, the obtained results showed that the composite contains 20% chitosan had appropriate properties for fabricating BONE SCAFFOLD.

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APA: Copy

RAZ, M., MOZTARZADEH, F., SHOKRGOZAR, M.A., ASHURI, M., & TAHRIRI, M.. (2013). PREPARATION, CHARACTERIZATION AND EVALUATION OF MECHANICAL AND BIOLOGICAL CHARACTERISTICS OF HYBRID APATITE/ GELATIN- CHITOSAN NANOCOMPOSITE BONE SCAFFOLD VIA BIOMIMETIC METHOD. ADVANCED MATERIALS IN ENGINEERING (ESTEGHLAL), 32(2), 25-42. SID. https://sid.ir/paper/163238/en

Vancouver: Copy

RAZ M., MOZTARZADEH F., SHOKRGOZAR M.A., ASHURI M., TAHRIRI M.. PREPARATION, CHARACTERIZATION AND EVALUATION OF MECHANICAL AND BIOLOGICAL CHARACTERISTICS OF HYBRID APATITE/ GELATIN- CHITOSAN NANOCOMPOSITE BONE SCAFFOLD VIA BIOMIMETIC METHOD. ADVANCED MATERIALS IN ENGINEERING (ESTEGHLAL)[Internet]. 2013;32(2):25-42. Available from: https://sid.ir/paper/163238/en

IEEE: Copy

M. RAZ, F. MOZTARZADEH, M.A. SHOKRGOZAR, M. ASHURI, and M. TAHRIRI, “PREPARATION, CHARACTERIZATION AND EVALUATION OF MECHANICAL AND BIOLOGICAL CHARACTERISTICS OF HYBRID APATITE/ GELATIN- CHITOSAN NANOCOMPOSITE BONE SCAFFOLD VIA BIOMIMETIC METHOD,” ADVANCED MATERIALS IN ENGINEERING (ESTEGHLAL), vol. 32, no. 2, pp. 25–42, 2013, [Online]. Available: https://sid.ir/paper/163238/en

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