优化光动力学参数:确定有效无活化Streptococcus mutans生物膜的关键因素,其中含有植物
Emad Kosarieh1, Sahar Sattari Khavas1, Dusan Hirjak1
1Department of Stomatology and Maxillofacial Surgery, Faculty of Medicine, Comenius University, Bratislava, Slovakia.
Lasers in medical science
|May 13, 2025
概括
使用物理 (PC) 的抗微生物光动力疗法有效地减少了Streptococcus mutans生物膜. 通过特定的PC度,光功率密度和照射时间,可以获得最佳的结果,这凸显了参数优化的重要性.
科学领域:
- 生物医学工程 生物医学工程
- 微生物学 微生物学
- 摄影化学的使用.
背景情况:
- 突变性菌 Streptococcus mutans 生物膜是导致牙的主要原因之一.
- 优化抗微生物光动力疗法 (aPDT) 参数对于提高疗效至关重要.
- 物理 (PC) 显示出作为aPDT的光敏化剂的潜力.
研究的目的:
- 为了定义对抗Streptococcus mutans生物膜的菲科亚宁激活aPDT的优化参数.
- 研究PC度,光强度和照射时间对生物膜减少的影响.
主要方法:
- 在体外研究中,使用亚最小抑制度 (sub-MIC) 的植物.
- 使用635nm二极管激光激活,功率密度为0.2W/cm2和1W/cm2.
- 通过log10殖民地形成单位/ml的S. mutans.生物膜分析.
主要成果:
- 在各种测试的流动和PC度中观察到显著的S. mutans生物膜减少.
- 较高的PC度和功率密度与较大的生物膜减少相关.
- 在 1⁄2 MIC PC, 1 W/cm2 的功率密度和 60 J/cm2 的能量剂量下达到最佳功效 (2 log10 减少).
结论:
- aPDT参数优化 (PC度,光剂量,辐射时间) 对于有效的S. mutans生物膜根除至关重要.
- 单独的能量剂量不足以评估aPDT的疗效.
- 这些发现有助于aPDT在临床应用中的未来成功.
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