水等离子处理方法:同时杀菌和表面修改基于的植入物
Gustavo L Likes1, Rafael L Novak1, Vitor C Y Franceschini2
1Mechanical Engineering Department, Federal University of Paraná, Curitiba, Brazil.
概括
一种新型的低温直流水等离子法有效消毒表面,消除污染物和细菌. 这种方法可以保护和增强氧化层,
科学领域:
- 生物材料科学
- 表面化学
- 杀菌技术
背景情况:
- 医疗植入物的灭菌对于预防感染至关重要.
- 传统的杀菌方法可能会影响材料的性能或需要高温.
- 开发有效的低温杀菌技术对于生物医学应用至关重要.
研究的目的:
- 评估一种新的直流水等离子法对的适用性和有效性.
- 评估水等离子处理对表面氧化物层和形态的影响.
- 确定该方法在临床应用中的潜力.
主要方法:
- 使用直流水等离子系统在60°C处理样本10分钟.
- 从蒸水中产生水蒸气,并在-700V极化.
- 进行了元素分析以评估表面成分和污染水平.
主要成果:
- 完全消除有机和无机污染物 (0%检测到) 和细菌.
- 表面的氧含量保持在8%左右.
- 水等离子处理没有对氧化表面层或形态产生负面影响.
结论:
- 电流水等离子法对的低温杀菌有效.
- 该过程增强了天然的氧化物层,有可能提高的生物活性.
- 这种以水为基础的杀菌系统对未来的临床应用具有前景.
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