【作者】 崔春翔； 戚玉敏； 高鑫； 李勇； 王晶； 刘慧；

【Author】 CUI Chun-xiang~1,QI Yu-min~1,GAO Xin~1,LI Yong~2,WANG Jing~1,LIU Hui~1 (1.School of Materials Science & Engineering,Hebei University of Technology,Tianjin 300130,China; 2.Equipment Department,Shenhua Hebei Guohua Cangdong Power Generation CO.LTD., Cangzhou 061113,China)

【机构】 河北工业大学材料科学与工程学院； 神华河北国华沧东发电有限责任公司设备部；

【摘要】 种植牙材料的表面抑菌性将大大提高其种植初期的生物固定效果。本研究采用阳极氧化法在医用钛表面制备TiO₂纳米管层,并通过体外变形链球菌培养实验来评价其抑菌性,结果表明,以0.5（质量分数）%HF/丙三醇为电解液在20V恒压下反应一定时间获得了管径50～80nm的TiO₂纳米管层,且管与管间排列紧密;经过对比紫外光照射前后变形链球菌在其表面的形态和数量可知,TiO₂纳米管层表现出了优异的抑菌性,这一特性与其纳米结构和优异的光催化性能相关。更多还原

【Abstract】 The antibacterial property of dental implants will effectively increase its biological fixation at the early stage of implantation.TiO₂ nanotubes layer was prepared on the surface of biomedical titanium by anodization in the study.The streptococcusmutans culture in vitro was done for evaluating Its antibacterial property.The results indicated that highly ordered TiO₂ nanotube with a wide range of tube diameters from approx.50 to 80nm were formed at 20V for different time in the electrolyte containing 0.5%HF/glycerine aqueous solution.The observed result of morphometry and multiplication of streptococcusmutans showed that TiO₂ nanotube layer had excellent antibacterial property,which had a direct relationship with its nano-structure and good photocatalysis.更多还原