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蓝色为积极:在纸质微流体设备上使用蓝色转移指示器进行色度测量LAMP检测,用于无仪器的肉眼读取

Sandra G Vlachovsky¹, Lucas R Sousa², Fabiana Stolowicz³

¹Departamento de Química Biológica e IQUIBICEN - CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), CABA, Argentina.

Analytica chimica acta

|March 11, 2026

概括

这项研究引入了一种新的微流体基于纸的分析装置 (μPAD),用于快速分子诊断. 低成本,可在现场部署的μPAD提供了无人眼检测核酸放大,增强了护理点的应用.

科学领域:

生物技术是生物技术.
分子诊断学分子诊断
分析化学分析化学

背景情况:

循环介导同热放大 (LAMP) 能够在恒定温度下快速,特定的DNA合成,非常适合于点诊断 (POC) 诊断.
当前的POC LAMP方法通常需要专门的设备和大量的反应量,这限制了成本效益和现场适用性.

研究的目的:

为基于LAMP的分子诊断开发一个低容量,成本效益和用户友好的检测平台.
将LAMP与基于纸的微流体分析装置 (μPAD) 集成,用于增强的POC应用.

主要方法:

使用微流体纸质分析装置 (μPAD) 进行LAMP产品检测.
采用酸盐蓝色色度反应来检测酸盐,这是核酸放大的一种副产品.
使用来自*Candidatus Liberibacter asiaticus*的LAMP产品验证了μPAD,这是黄龙 (HLB) 的致病原体.

主要成果:

μPAD需要最小的样本体积 (<7μL) 并为积极结果提供强烈的蓝色,使裸眼检测成为可能.
达到与阿加罗斯凝电泳相匹配的灵敏度,检测DNA到75 pg μL^-1.
与HLB感染的类果样本有很高的一致性,验证了其诊断潜力.

结论:

介绍了一个新的,低成本的,可在现场部署的分子诊断检测平台.
成功地将LAMP的灵敏度与纸质色度检测的简单性相结合.
为微流体设备提供潜在的集成检测模块,推进POC分子诊断.

关键词:

确保了保险公司.对于HLB疾病来说,这是一个非常严重的疾病.蓝色是一种蓝色.这就是NAATs的意义.聚乙烯皮罗利胺的多乙烯.酸铁酸盐的使用方法

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