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, 316L stainless steel and Ti6Al4V, TiO2-coated NiTi exhibits excellent hemocompatibility, such as lower hemolysis rate and longer clotting time. Key words: NiTi; hemolysis; clotting; TiO2 在金属植入材料中..., NiTi合金的溶血率显著下降, 并且溶血率<1%, 满足医学标准所规定的植入物溶血率<5%的要求. 溶血率越小表明材料对血红细胞的破坏程度越轻, 血液相容性越好. 图4 不同材料的溶血率 Fig.4 Hemolysis rate of different materials 有学者[14]认为血液相容性是材料表面能和功函数共同作用的结果, 表面能决定对蛋白质的吸附, 而功函数决定蛋白......
Hemolysis effect and calcium-phosphate precipitation of heat-organic-film treated magnesium GAO Jia-cheng(高家诚), QIAO Li-ying(乔丽英), LI Long-chuan(李龙川), WANG Yong(王 勇) College of Materials... calcium-phosphate apatites formation on magnesium, consequently the corrosion resistance and hemolysis properties of magnesium were improved for biomedical applications. Firstly, magnesium samples......
to verify the corrosion behavior of the materials.Furthermore,hemolysis,dynamic clotting time and platelet binding test were utilized to investigate the biocompatibility of the materials.The results...Comparison Study of Corrosion Behavior and Biocompatibility of Polyethyleneimine (PEI)/Heparin and Chitosan/Heparin Coatings on NiTi alloyPing Dong 1),Weichang Hao 1),Yayi Xia 2),Guozu Da 3......
NiTi形状记忆合金表面氧化膜的成分和结构 朱胜利1,崔振铎1,杨贤金1,何菲2 (1.天津大学材料科学与工程学院,天津,300072;2.天津大学一碳化工国家重点实验室,天津,300072) 摘要:用AES和XPS研究了NiTi合金表面氧化膜的成分和结构.结果表明,NiTi合金表面主要元素有C,O,Ti,Ni等;氧化膜的最外层由TiO2和TiO及少量的Ni组成,TiO和TiO2的相对含量分别为 30.32%,69.68%;表面氧化膜下存在一层富Ni层.随表面距离的增加,TiO2和TiO的含量逐渐减少,Ti的含量增加,而Ni一直没有价态的变化. 关键词:NiTi合金; 氧化膜; XPS; AES; [全文内容正在添加中] ......
化学修饰对NiTi形状记忆合金氧化膜的影响 朱胜利1,姚康德1,崔振铎1,杨贤金1,何菲2 (1.天津大学材料科学与工程学院,天津,300072;2.天津大学一碳化工国家重点实验室,天津,300072) 摘要:用X光电子能谱(XPS)研究了NiTi形状记忆合金经酸,碱处理后表面氧化膜成分和结构的变化.结果表明,未经处理的NiTi合金表面最外层氧化膜主要由TiO2,TiO和少量的Ni组成,酸,碱处理后,最外层氧化膜由TiO2,Ni2O3组成,但经碱处理后,氧化膜的厚度大大增加. 关键词:NiTi形状记忆合金; 化学修饰; xPS; 氧化膜; [全文内容正在添加中] ......
reduce toxic Ni ion release and also improve the hemolysis resistance and thromboresistance of biomedical NiTi SMA. Key words: NiTi shape memory alloy; titania film; advanced oxidation process(AOP... spectrometry (ICPMS), hemolysis analysis, and blood platelet adhesion test. 2 Experimental 2.1 Fabrication of titania film on NiTi SMA by modified AOP A commercially available NiTi (50.8% Ni, molar......
Cu-Mo-C在TiO上的润湿性研究 李荐1,钟海云1,李庆奎1,杨建文1,钟晖1 (1.中南大学冶金科学与工程学院,长沙,410083) 摘要:研究了Cu在一氧化钛上的润湿及Mo,C的加入对其润湿性的影响.结果表明Cu在一氧化钛上的润湿属非反应型润湿,但存在相间溶解.纯Cu在一氧化钛上的润湿性较差,在真空条件下1083~1450℃接触角为120~68.Cu中加入Mo,C,在润湿过程中Mo,C在TiO)/Cu界面富集,并形成Mo2C与Ti(C,O)的固溶体混合物,可显著改善润湿.加入Mo,C 2%以上,其接触角降至20°以下. 关键词:润湿性; 一氧化钛; 铜; [全文内容正在添加中] ......
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Cytocompatibility and Hemolysis of AZ31B Magnesium Alloy with Si-containing CoatingQiang Wang1,Lili Tan2,Ke Yang21. School of Stomatology,China Medical University2. Institute of Metal Research... by both indirect and direct contact methods,respectively.Effects of a number of incubation variables on the sensitivity and reproducibility of the hemolysis test were also examined by using positively......
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