Title of article :
Structure and properties of hydroxyapatite/cellulose nanocomposite films
Author/Authors :
He، نويسنده , , Meng and Chang، نويسنده , , Chunyu and Peng، نويسنده , , Li-Na and Zhang، نويسنده , , Lina، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
7
From page :
2512
To page :
2518
Abstract :
The aim of this study was to develop a new inorganic–organic hybrid film. Nanohydroxyapaptite (nHAP) particles as the inorganic phase was mixed with cellulose in 7 wt.% NaOH/12 wt.% urea aqueous solution with cooling to prepare a blend solution, and then inorganic–organic hybrid films were fabricated by coagulating with Na2SO4 aqueous solution. The structure and properties of the hybrid films were characterized by high resolution transmitting electron microscopy (HRTEM), field emission scanning electron microscopy (FESEM), thermo-gravimetric analysis (TGA), Fourier transform infra-red (FT-IR) spectra, wide angle X-ray diffraction (WAXD) and tensile testing. The results revealed that the HAP nanoparticles with mean diameter of about 30 nm were uniformly dispersed and well immobilized in the hybrid film as a result of the role of the nano-and micropores in the cellulose substrate. A strong interaction existed between HAP and cellulose matrix, and their thermal stability and mechanical strength were improved as a result of good miscibility. Furthermore, the results of 293T cell viability assay indicated that the HAP/cellulose films had excellent biocompatibility and safety, showing potential applications in biomaterials.
Keywords :
Nano-hydroxyapatite , Biomaterials , Inorganic–organic hybrid , Cellulose film
Journal title :
CARBOHYDRATE POLYMERS
Serial Year :
2012
Journal title :
CARBOHYDRATE POLYMERS
Record number :
1623397
Link To Document :
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