Characterization of Ti6Al4V implant surface treated by Nd:YAG laser and emery paper for orthopaedic applications
Characterization of Ti6Al4V implant surface treated by Nd:YAG laser and emery paper for orthopaedic applications
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DOI：
10.1016/j.apsusc.2007.04.084
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发表时间：
2007-08
影响因子：
6.7
通讯作者：
M. E. Khosroshahi;M. Mahmoodi;J. Tavakoli
中科院分区：
文献类型：
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作者：
M. E. Khosroshahi;M. Mahmoodi;J. Tavakoli
在140Jcm−2的影响下，获得了一种更高尚和生物相容性更好的钛合金，与对照样品的70°相比，植入物具有更高的硬度（825HV），更高的耐腐蚀性（- 0.21V）和最高的亲水性（即θc=37°）。这些值分别对应于58和39mNm - 1的表面张力。在140Jcm−2温度下，激光处理样品的润湿性优于机械粗糙表面。利用扫描电镜和Image J Program软件分析细胞在特定区域的生长和扩散情况。显然，在140Jcm−2条件下，比其他任何条件下有更多的细胞附着（1.2×105）并在表面上扩散（488μm2）。病理上，处理过的样本没有感染的迹象。
A more noble and biocompatible Ti alloy was achieved at fluence of 140Jcm−2where the implant indicated a higher degree of hardness (825HV), higher corrosion resistance (−0.21V) and highest hydrophilicity (i.e. θc=37°) compared with 70° of the control sample. These values corresponded to 58 and 39mNm−1of surface tension respectively. The laser treated samples at 140Jcm−2showed higher wettability characteristics than mechanically roughened surface. Cell growth and their spreading condition in a specific area were analyzed by SEM and Image J Program software. Clearly, more cells were attached (1.2×105) to and spread (488μm2) over the surface at 140Jcm−2than in any other condition. Pathologically, the treated samples indicated no sign of infection.