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便携式循环介导异热放大装置,具有光谱检测,用于快速发现病原体.
Chun Yu Pan1, Puchong Kijamnajsuk2, Jyh Jian Chen1
1Department of Biomechatronics Engineering, National Pingtung University of Science and Technology, 1, Shuefu Road, Neipu, Pingtung, 91201, Taiwan.
Analytical biochemistry
|July 13, 2024
概括
一种带有光谱检测的便携式循环介导同热放大器 (LAMP) 装置被开发用于快速识别沙门氏菌Typhimurium DNA. 这种低成本,电池驱动的工具提供实时监控,以改善偏远地区的食品安全.
科学领域:
- 食品安全 食品安全
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 全球传染病传播的增加需要快速,便携式的诊断工具.
- 资源有限的环境需要具有成本效益,易于使用的测试平台.
- 目前用于检测沙门氏菌Typhimurium的方法可能很慢,需要专门的设备.
研究的目的:
- 开发一种便携式,低成本的设备,用于实时检测沙门氏菌Typhimurium DNA.
- 将循环介导同热放大 (LAMP) 与光谱检测相结合.
- 创建一个用户友好的远程监控和分析平台.
主要方法:
- 使用LinkIt 7697微控制器和微光谱仪构建了一个便携式设备.
- 开发了一种自制的热模块,具有精确的温度控制 (±1°C).
- 该设备包含热电冷却器,紫外线LED和一次性反应管,由可充电电池供电.
- 实现了实时光谱信号捕获和传输,用于反应监测.
主要成果:
- 便携式LAMP设备成功地放大了具有高灵敏度 (2.83 × 10−4 ng/μL) 的沙门氏菌Typhimurium DNA.
- 实现了精确的温度控制和快速加热 (3分钟内).
- 一个远程的网页界面可以实时监测温度和光.
- 该设备通过泡绝缘和3D打印的框架证明了出色的热稳定性.
结论:
- 开发的便携式LAMP设备提供了一个具有成本效益和灵敏的解决方案,用于检测沙门氏菌Typhimurium.
- 实时监控能力提高了食品安全应用的可用性和数据分析.
- 这种技术对于资源有限和非城市地区特别有价值,提高了食品安全.
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