使用基于液晶的免疫传感器实时监测微生物污染和压力生物标志物,用于食品安全评估
Maria Simone Soares1,2, Andreia C M Rodrigues3, Sílvia F S Pires3
1CICECO-Aveiro Institute of Materials & Physics Department, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
Biosensors
|January 27, 2026
概括
这项研究引入了基于液晶 (LC) 的免疫传感器,用于实时监测水产养殖中的鱼类压力 (皮质醇) 和细菌污染 (大肠杆菌). 这些传感器提供快速,灵敏和无标签的检测,提高水生动物的健康和食品安全.
科学领域:
- 生物医学工程 生物医学工程
- 环境科学 环境科学
- 食品科学 食品科学 食品科学
背景情况:
- 水产养殖在水质,食品安全和水生物种健康方面面临着挑战.
- 皮质醇 (压力生物标志物) 和大肠杆菌 (细菌污染) 需要敏感的实时检测方法.
- 基于液晶 (LC) 的免疫传感器为生物分析物提供高灵敏度,快速响应和无标签的光学检测.
研究的目的:
- 开发和应用基于LC的免疫传感器来检测水产养殖系统中的皮质醇.
- 在净化过程中检测水和双贝中的大肠杆菌污染.
- 评估基于LC的免疫传感器作为水产养殖的诊断工具的可行性.
主要方法:
- 开发基于LC的免疫传感器来检测皮质醇和大肠杆菌.
- 使用人工和真实水产养殖样本测试传感器性能.
- 评估传感器对干扰物质的特异性.
- 在净化过程中监测皮质醇水平和大肠杆菌污染.
主要成果:
- 生物传感器在几秒钟内检测到皮质醇,检测极限 (LOD) 为0.1 ng/mL.
- 对皮质醇表现出高度的特异性,使其与,葡萄糖和胆固醇区别开来.
- 在过阶段成功关联皮质醇度,并在净化过程中跟踪大肠杆菌.
结论:
- 基于LC的免疫传感器在水产养殖中有效检测皮质醇和大肠杆菌.
- 该技术提供了一个用户友好的,便携式和高效的诊断解决方案.
- 这一进步有助于改善水质管理和水产养殖中的食品安全.
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