Abstract

The effect of intermediate ion cleaning of the Ti target on the structure and properties of the polymer fiber scaffold made by electrospinning from poly-L-lactic acid (PLLA) was investigated during deposition of Ti-N-containing coatings by DC reactive magnetron sputtering of the Ti target in a nitrogen atmosphere. SEM investigation shows that the selected plasma treatment modes can modify fiber PLLA scaffolds without changing their morphological properties. Energy-dispersive spectroscopy showed that the Ti concentration on the surface of PLLA scaffolds is increased under intermediate ion cleaning of the target, although ion cleaning did not affect the Ti distribution across the scaffold cross section. Using optical goniometry, it was found that scaffold surface treatment allows changing the contact properties of the surface from hydrophobic to hydrophilic.

中文翻译：

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直流靶磁控溅射涂层沉积过程中离子清洗钛靶对生物可吸收PLLA支架结构的影响

摘要

在直流反应磁控溅射沉积含Ti-N涂层的过程中，研究了中间离子清洗Ti靶对由聚L-乳酸（PLLA）电纺制成的聚合物纤维支架的结构和性能的影响。 Ti靶在氮气氛中。SEM研究表明，选定的等离子体处理模式可以修饰PLLA纤维支架，而不会改变其形态特性。能量分散光谱显示，在目标的中间离子清洗下，PLLA支架表面的Ti浓度增加了，尽管离子清洗并没有影响整个支架截面上的Ti分布。使用光学测角仪