Title of article :
The different N concentrations induced cytocompatibility and hemocompatibility of MWCNTs with CNx coatings
Author/Authors :
Zhao، نويسنده , , M.L. and Li، نويسنده , , D.J. and Guo، نويسنده , , M.X. and Zhang، نويسنده , , Y.T. and Gu، نويسنده , , H.Q. and Deng، نويسنده , , X.Y. and Wan، نويسنده , , R.X. and Sun، نويسنده , , X.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2013
Abstract :
Carbon nitride coatings were deposited on the multiwalled carbon nanotubes (MWCNTs) which were prepared by chemical vapor deposition (CVD) using ion beam assisted deposition (IBAD) system. The morphology of the MWCNTs as well as variation in composition and chemical bonds between atoms in the coatings were measured using transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The relationship between N/C atomic composition ratio and chemical bonding states and cytocompatibility and hemocompatibility of the MWCNTs with CNx coatings was investigated using fibroblast cell (L929) adhesion and blood clotting assays. The results revealed that the higher N/C or sp2CN/sp3C/N ratio stimulated the cell growth, proliferation, and spreading and prolonged the kinetic blood-clotting time and recalcification time.
Keywords :
N/C atomic composition ratio , Cytocompatibility , CNx , Hemocompatibility , Multiwalled carbon nanotubes
Journal title :
Surface and Coatings Technology
Journal title :
Surface and Coatings Technology
