有效的光和电化学发光双信号或基于纳米集群的便携式抗生素测试平台,具有超广的检测范围
Ying Zhou1, Senfeng Liu2, Xinlei Yan2
1College of Food Science, Southwest University, Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, PR China; Key Laboratory of Luminescent and Real-Time Analytical Chemistry, (Southwest University). Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
Food chemistry
|April 30, 2025
概括
一个新的双信号生物传感器可以方便地,灵敏地检测食物中的四环素 (TC) 残留物. 这种点照顾测试 (POCT) 平台使用光和电化学发光用于可靠的食品安全和环境监测.
科学领域:
- 分析化学 分析化学
- 生物技术是生物技术.
- 环境科学 环境科学
背景情况:
- 食品中的四环素 (TC) 残留物由于不合理的使用而造成健康风险.
- 敏感和特定的检测方法对于食品安全和环境监测至关重要.
- 像ELISA这样的现有方法可能缺乏快速检测的便利性或灵敏性.
研究的目的:
- 开发一个方便的护理点测试 (POCT) 平台,用于敏感和特定的四环素检测.
- 建立双信号 (光和电化学发光) 生物传感器,以提高检测性能.
- 提供一种可靠的方法来监测食品和环境样本中的TC.
主要方法:
- 基于Eppendorf管的生物传感器的制造,具有多多巴胺功能.
- 采用一个阿巴胺-抗体仿真体来对四环素进行特定的识别.
- 开发使用金纳米集群进行光 (FL) 和电化学发光 (ECL) 检测的双信号读出系统.
主要成果:
- 生物传感器实现了四环素的广泛检测范围,从5 fM到1 μM.
- 获得了低检测极限:视觉FL为73 fM,ECL为2.3 fM.
- 与传统的ELISA方法相比,开发的POCT平台表现出优越的性能.
结论:
- 开发的POCT平台提供了一种敏感,特定和方便的方法来检测四环素.
- 双信号方法有效地结合了FL的可视化强度和ECL的高灵敏度.
- 该战略为开发用于粮食安全和环境监测的先进POCT系统提供了有价值的指导方法.
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