在食品样本中检测GI.1和GII.4诺罗病毒的双菌株,使用带表位印记的聚合物检测
Amy Dann1, Pankaj Singla2, Jake McClements3
1Department of Chemical Engineering, University of Manchester, Nancy Rothwell Building, East Both Street, Manchester, M13 9QS, Great Britain; School of Engineering, Newcastle University, Claremont Road, Newcastle-Upon-Tyne, NE1 7RU, United Kingdom.
Analytica chimica acta
|July 16, 2025
概括
一个新的热传感器在30分钟内检测到食品中的两个主要的诺罗病毒菌株 (GI.1和GII.4). 这种创新型传感器使用印有表位的聚合物纳米粒子进行快速的现场食品安全测试,防止疫情爆发.
科学领域:
- 纳米技术纳米技术
- 生物感应是一种生物感应.
- 食品安全 食品安全
背景情况:
- 诺罗病毒是全球病毒性胃肠炎的主要原因.
- 目前的诺罗病毒检测方法不适合在现场进行食品分析.
- 需要创新的传感器系统来进行主动的现场食品样本检测.
研究的目的:
- 开发一种用于现场检测诺罗病毒的新型热传感器.
- 为了能够在食品矩阵中选择性检测常见的诺罗病毒基因型.
主要方法:
- 开发了以表位印记的聚合物纳米粒子 (nanoMIPs),以保存的诺病毒序列为目标.
- 使用热传感器平台来检测与诺罗病毒结合的纳米MIP.
- 在缓冲溶液和模型食物矩阵 (菜) 中测试传感器性能.
主要成果:
- 热传感器可以选择性地检测出类似于GI.1和GII.4病毒的诺罗病毒颗粒.
- 在缓冲剂 (1.53 pg/mL用于GI.1,2.28 pg/mL用于GII.4) 和菜 (2.19 pg/mL用于GI.1,2.69 pg/mL用于GII.4) 中达到低检测极限.
- 经过快速检测 (30分钟),具有对类似病毒的高选择性.
结论:
- 开发的热传感器为现场食品安全提供了快速的双菌株诺罗病毒检测.
- 简单的样品制备和单联体多菌株检测能力是关键优势.
- 这项技术是公共卫生和食品安全应用的有希望的工具.
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