N/C对碳氮膜修饰的多壁碳纳米管细胞相容性的影响  

Effect of N/C ratio on cytocompatibility of multi-walled carbon nanotubes with carbon nitride coatings

作　　者：赵梦鲤[1] 李德军[1] 董磊[1] 刘小绮[1] 曹叶[1] 

机构地区：[1]天津师范大学物理与材料科学学院,天津300387

出　　处：《天津师范大学学报（自然科学版）》2014年第3期36-41,共6页Journal of Tianjin Normal University：Natural Science Edition

基　　金：天津师范大学青年基金资助项目(52XQ1204);射线束技术与材料改性教育部重点实验室(北京师范大学)资助项目;国家自然科学基金资助项目(51272176);国家重大科学研究计划资助项目(2012CB933600)

摘　　要：为改善碳纳米管的细胞相容性,通过离子束辅助沉积方法在由化学气相沉淀法制备的多壁碳纳米管表面沉积纳米厚度的碳氮膜以进行表面修饰.通过观察L929小鼠肺部成纤维细胞、EAHY926人内皮细胞和兔血红细胞在修饰前后的碳纳米管表面的黏附和生长状态可知,沉积CNx膜的多壁碳纳米管的细胞相容性优于沉积前,表现出良好的生命活性和增殖状态,同时,较高的N/C比有利于细胞在沉积CNx膜碳纳米管表面的增殖和生长以及细胞形态的伸展.In order to improve the cytocompatibility of carbon nanotubes, multi-walled carbon nanotubes （MWCNTs） prepared through chemical vapor deposition （CVD） were covered with CNx coatings by ion beam assisted deposition （IBAD）. By observing the adhesion and growth status of mouse fibroblast cells （L929）, human endothelial cells （EAHY926） and rabbit blood erythrocytes on carbon nanotubes surface before and after the modification, the results show that the eytocompatibility of MWCNTs with CNx coatings which have good activity and proliferation status are better than that of MWCNTs, and the higher N/C ratio benefits the cell proliferation on the surface of carbon nanotubes which is covered with CNx coatings and the proliferation of cell shape.

关 键 词：离子束辅助沉积 小鼠成纤维细胞 人内皮细胞 兔血红细胞 

分 类 号：O469[理学—凝聚态物理] Q813.11[理学—电子物理学]