开发一种基于RT-LAMP的色度微流体装置,用于检测SARS-CoV-2
Tatsuya Sakurai1, Hiroka Aonuma2, Daigo Natsuhara3
1Laboratory Animal Facilities, The Jikei University School of Medicine, Tokyo, Japan. tsakurai@jikei.ac.jp.
Tropical medicine and health
|January 21, 2026
概括
一种新的色度计反转录循环介导同热放大 (RT-LAMP) 微流体装置为检测SARS-CoV-2 RNA提供了一种快速而敏感的方法. 这种试验具有很高的特异性,使其适合在资源有限的环境中进行临床诊断.
科学领域:
- 分子生物学分子生物学
- 生物技术是生物技术.
- 医学诊断 医学诊断 医学诊断
背景情况:
- 准确和快速诊断COVID-19对于控制SARS-CoV-2传播至关重要.
- 像RT-qPCR这样的当前方法需要专门的实验室和设备.
- 循环介导同热放大 (LAMP) 在同热条件下提供了一个更快,更简单的替代方案.
研究的目的:
- 开发一种用于检测SARS-CoV-2的色度反转录循环介导同热放大 (RT-LAMP) 试验.
- 将RT-LAMP试验集成到微流体装置中,以提高可用性.
- 评估开发的微流体装置的诊断性能.
主要方法:
- 设计的RT-LAMP原料向保存的SARS-CoV-2 E和RdRp基因.
- 使用酸蓝 (HNB) 用于视觉色度检测.
- 制造了一种具有五个反应室的聚二甲基素 (PDMS) 微流体装置.
- 使用RT-LAMP微流体装置测试鼻拭片的RNA,并与RT-qPCR进行比较.
主要成果:
- 该RT-LAMP微流体装置显示了100%的特异性.
- 对于Ct ≤35的样本,总体灵敏度为75.8%.
- 具有较低Ct值 (较高病毒载量) 的样本的灵敏度更高:Ct ≤ 25 的100%;Ct ≤ 30 的88.6%;Ct ≤ 35 的50% .
结论:
- 配色RT-LAMP微流体装置提供了简单,快速和可靠的SARS-CoV-2RNA检测.
- 该设备的视觉输出和最小的设备要求使其非常适合于护理点和资源有限的设置.
- 性能与通常用于COVID-19诊断的横向流量测试相当或优于.
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