Experimental investigation of laser surface texturing and related biocompatibility of pure titanium
Experimental investigation of laser surface texturing and related biocompatibility of pure titanium
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纯钛表面激光毛化及其生物相容性的实验研究
DOI：
10.1007/s00170-022-08710-6
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发表时间：
2022-01-17
影响因子：
3.4
通讯作者：
Liu, Yu
中科院分区：
文献类型：
--
作者：
Li, Haoyu;Wang, Xin;Liu, Yu
虽然纯钛因其优异的机械和化学性能而成为医疗应用的首选材料，但通过表面纹理进一步改善其表面相关功能也很有希望。在目前的工作中，我们通过在 1064 nm 波长下操作的皮秒脉冲激光烧蚀，实验研究了纯钛上精确网状表面纹理的制造以及由此产生的表面润湿性和生物相容性功能。具体来说，评估了微槽形态对平均功率和扫描速度的依赖性，以产生优化的激光加工参数，这些参数用于制造具有均匀特征尺寸和对纯钛的有限热影响的高精度网状表面纹理。随后的性能评估测试表明，由于亲水性增强，网状表面纹理对 BMSC 细胞的生物相容性产生有益影响。
While pure titanium is a material of choice for medical applications for its excellent mechanical and chemical properties, further improving its surface-related functionalities by surface texturing is also promising. In the present work, we experimentally investigate the fabrication, as well as the resulting functionalities of surface wettability and biocompatibility, of precise mesh-type surface textures on pure titanium by picosecond pulsed laser ablation operating at 1064 nm wavelength. Specifically, the dependence of microgroove morphology on average power and scanning speed is evaluated to yield optimized laser processing parameters, which are utilized to fabricate high precision mesh-type surface textures with uniform feature size and limited thermal effects on pure titanium. Subsequent performance evaluation tests demonstrate that the mesh-type surface textures induce a beneficial effect on the biocompatibility with respect to BMSC cells due to the enhanced hydrophilicity.