基于激活的银纳米粒子吸附细菌的"磁铁"可以通过表面增强的拉曼散射来预测耐火的上性牙周炎
Xin Liu1,2,3, Shen Jiang4,2, Ting Zhang4,5
1The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang 150001, P. R. China.
ACS applied materials & interfaces
|February 9, 2024
概括
一个新的表面增强拉曼散射 (SERS) 平台提供快速,无标签检测Enterococcus faecalis (E. faecalis),这是阻断性牙周节炎 (RAP) 的关键原因. 这种绿色技术有助于早期诊断和预防口腔疾病.
科学领域:
- 纳米技术和材料科学 材料科学
- 生物医学工程 生物医学工程
- 微生物学与传染病的研究
背景情况:
- 耐火性牙牙周炎 (RAP) 是一种内牙炎症性疾病,通常是由Enterococcus faecalis (E. faecalis) 引起的.
- 在临床环境中,准确和快速检测口腔细菌,特别是E. faecalis,仍然是一个重大挑战.
研究的目的:
- 开发一种新的,无标签的表面增强拉曼散射 (SERS) 平台,用于特定和直接检测口腔细菌.
- 在各种生物样本中创建一个环保和高度敏感的测定方法来识别E. faecalis.
主要方法:
- 使用二步增强过程 (NaBH4和Na+) 的银纳米粒子制造SERS平台,以创建"热点".
- 利用机器学习算法在四种不同的口腔细菌物种之间进行智能歧视.
- 在模拟的唾液,血清和来自RAP病例的真实患者样本中验证了平台的性能.
主要成果:
- 开发的SERS平台展示了E. faecalis的快速,定量和可重复检测,其检测极限低,稳定性高.
- 机器学习使E. faecalis与其他口腔细菌 (P. gingivalis,S. mutans,E. coli) 的准确区分成为可能.
- 该试验显示,E. faecalis在复杂的生物基质中具有很高的特异性,并证实了其环保性质.
结论:
- 无标签,快速和绿色SERS检测策略为RAP的早期诊断和预防提供了一个有前途的创新解决方案.
- 这项技术提供了一种安全有效的方法来识别特定的口腔病原体,有可能改善外周疾病的临床结果.
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