通过表面增强拉曼光谱技术快速和灵敏地检测SARS-CoV-2中的突变
Liping Chen1, Xuanjiang Zeng1, Fan Yang1
1School of Science, Xihua University, Chengdu 610039, PR China.
Langmuir : the ACS journal of surfaces and colloids
|January 30, 2025
概括
一种新的表面增强拉曼光谱 (SERS) 方法可以快速检测SARS-CoV-2 S蛋白质和像Omicron和Delta这样的变体. 这种便携式诊断工具为早期病毒性疾病诊断提供了快速,灵敏的检测.
科学领域:
- 生物医学工程 生物医学工程
- 频谱学是一种光谱学.
- 传染病诊断 传染病诊断 传染病诊断
背景情况:
- 新型冠状病毒 (SARS-CoV-2) 和其高度流行的变种构成了持续的全球健康威胁.
- 现有的SARS-CoV-2诊断工具需要在速度和灵敏度方面进行改进.
- 由于SARS-CoV-2的突变率很高,因此需要适应新兴菌株的检测方法.
研究的目的:
- 为SARS-CoV-2及其变种开发一种快速而敏感的诊断方法.
- 使用表面增强的拉曼光谱法 (SERS) 直接检测S蛋白.
- 为了补充现有的诊断工具,一个便携式和高效的解决方案.
主要方法:
- 使用表面增强的拉曼光谱法 (SERS) 直接检测S蛋白.
- 使用便携式拉曼光谱仪进行快速分析.
- 量化野生型,Omicron和Delta变种的检测极限和线性范围.
主要成果:
- 在5分钟内实现了SARS-CoV-2 S蛋白质和变体 (Omicron,Delta) 的检测.
- 建立了从1.0×10−7到1.0×10−3的线性检测范围.
- 达到的检测极限 (LOD) 低至大约10−8 g·mL−1.
结论:
- 开发的SERS方法简单,快速,便携,并且广泛适用于病毒检测.
- 能够同时检测多种突变的SARS-CoV-2标.
- 在化学,生物学和医学的病毒性疾病早期诊断方面显示出显著的前景.
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