菌体/吸附体双编码的水凝阵列与微流体平台集成,用于同时检测多种食品病原体
Jie Xu1, Siwei Zhou2, Yuqi Zhang2
1School of Public Health, Guangdong Pharmaceutical University, Guangzhou, 510310, China; School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China.
Talanta
|April 27, 2025
概括
这项研究引入了一种快速微流体芯片电泳 (MCE) 平台,用于检测多种食品病原体. 这种新的菌体/吸附体水凝阵列系统提供了对大肠杆菌和沙门氏菌等细菌的敏感和时间有效的分析.
科学领域:
- 生物技术是生物技术.
- 分析化学 分析化学
- 食品安全 食品安全
背景情况:
- 食物传播病原体是一个主要的公共卫生问题.
- 目前的检测方法可能耗时,缺乏多重复合功能.
研究的目的:
- 开发一个通用,灵敏和快速的平台,同时检测多种食品病原体.
- 使用菌体/吸附体双编码的水凝阵列来增强病原体识别.
主要方法:
- 开发一个微流体芯片电泳 (MCE) 平台.
- 在水凝阵列中嵌入菌体和ATP体/补链 (A-Apt/cDNA) 混合体.
- 利用菌体诱导的ATP释放和cDNA链长度作为细菌标记.
- 通过MCE分析释放的cDNA链,以进行定性和定量病原体检测.
主要成果:
- 该平台在60分钟内成功检测和量化了三种食品病原体 (大肠杆菌,沙门氏菌,黄金葡萄球菌).
- 达到较低的检测极限:大肠杆菌为20 CFU/mL,S. typhimurium为30 CFU/mL,S. aureus为15 CFU/mL.
- 证明了多重食品病原体分析的通用和时间效率高的战略.
结论:
- 开发的MCE平台提供了一种灵敏,快速和通用的方法,用于同时检测食源性病原体.
- 这项技术在改善食品安全监测和公共卫生保护方面具有重大潜力.
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