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Visual Detection of Multiple Nucleic Acids in a Capillary Array
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针对SARS-CoV-2双模式检测的目标驱动的功能化DNA水凝毛细体传感器.

Jing-Bo Jiao1, Qing Kang2, Shu-Xin Cui2

  • 1State Key Laboratory of Food Nutrition and Safety, Engineering Research Center of Food Biotechnology, Ministry of Education, Tianjin University of Science and Technology, Tianjin, 300457, China; College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China.

Talanta
|December 7, 2024
PubMed
概括

一种新的DNA水凝毛细体传感器提供了对SARS-CoV-2 RNA的敏感双模式检测. 这种方法利用级联信号放大和纳米粒子在临床样本中进行快速可靠的诊断.

关键词:
毛细血管传感器传感器级联信号放大级别的信号放大级别.两种模式的检测检测.功能化的DNA水凝.这就是SARS-CoV-2病毒.

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科学领域:

  • 生物医学工程 生物医学工程
  • 纳米技术 纳米技术
  • 分析化学 分析化学

背景情况:

  • 由SARS-CoV-2引起的COVID-19大流行,继续给全球健康和经济带来重大挑战.
  • 准确和快速检测SARS-CoV-2对于疾病控制和预防至关重要.

研究的目的:

  • 开发一种灵敏多功能双模式传感器,用于检测SARS-CoV-2 RNA.
  • 利用功能化的DNA水凝和基于纳米粒子的信号放大来提高诊断能力.

主要方法:

  • 开发一个以目标驱动的DNA水凝毛细体传感器,采用碳涂层的-,普鲁士蓝和纳米粒子 (MnCo@C-Pt-PB NPs).
  • 使用目标RNA触发的级联信号放大来释放MnCo@C-Pt-PBNP.
  • 采用双模式检测策略,涉及色度变化 (TMB氧化) 和近红外辐射下的光热信号.

主要成果:

  • 传感器显示了目标RNA的广泛检测范围,从100 aM到100 pM,低检测极限为100 aM.
  • 该方法在检测口腔膜样本中的SARS-CoV-2RNA中表现出可靠的性能.
  • 通过纳米粒子的催化活性和光热特性实现双模式检测.

结论:

  • 开发的功能化DNA水凝毛细体传感器为SARS-CoV-2检测提供了一个敏感,方便和多功能平台.
  • 这项技术有望用于环境安全,分子诊断和疾病预防方面的应用.