使用基于DNA水凝和复合功能纳米材料的三合一CRISPR平台进行超灵敏的诺罗病毒检测
Weiya Wang1, Jiadi Sun2, Yifei Gao3
1School of Food Science and Technology, International Joint Laboratory on Food Safety, Synergetic Innovation Center of Food Safety and Quality Control, Jiangnan University, Wuxi, Jiangsu 214122, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Military Medical Sciences Academy, Tianjin 300050, China.
Journal of hazardous materials
|November 24, 2024
概括
一个新的生物传感器使用三个光学方法检测诺罗病毒:拉曼,色度和光. 这种超敏感的,三合一的含有球体核酸纳米粒子 (GCSNAs) 的探测器可用于食品安全和医学诊断的女性分子水平检测.
科学领域:
- 生物技术是生物技术.
- 纳米技术纳米技术
- 生物感应是一种生物感应.
背景情况:
- 诺罗病毒对公众健康构成重大威胁,需要敏感和快速检测方法.
- 现有的检测技术往往缺乏广泛应用所需的灵敏度,速度或现场能力.
- 多模式生物传感器的开发提供了一个有希望的方法来克服这些局限性.
研究的目的:
- 开发一种超敏感的三合一生物传感器,用于检测微量诺罗病毒.
- 将拉曼,色度和光检测机制集成到一个传感平台中.
- 为了利用含有空隙的球形核酸纳米粒子 (GCSNA) 和DNA水凝进行增强的诺病毒量化.
主要方法:
- 利用了CRISPR-Cas12a通过逆转录和复合酶聚合酶异热放大 (RT-RPA) 产生的dDNA激活的跨裂变活性.
- 采用DNA水凝/GCSNA组合,在病毒存在时释放一个三合一 (3-in-1) 探针-GCSNA.
- 综合色度检测与智能手机灰度分析和光/拉曼光谱进行综合分析.
主要成果:
- 在女性分子度下实现了对诺罗病毒的超敏感量化.
- 在诺罗病毒检测方面表现出卓越的选择性和准确性.
- 测色模式允许在现场进行可见的半定量检测,而智能手机分析提供了定量结果.
结论:
- 拟议的三种模式生物传感器为诺罗病毒检测提供了一种高度敏感,选择性和准确的方法.
- 集成的GCSNA和DNA水凝提供了一个多功能平台,用于多式传感.
- 这项技术在食品安全,环境分析和医疗诊断中对现场病毒检测具有重大潜力,为多功能传感平台铺平了道路.
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