基于微通道的电阻调节的阿弗拉托克辛B1便携式传感器,使用多度计作为读取输出
Huabin Cai1, Yanling Huang1, Yue Lin1
1Ministry of Education Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China.
ACS sensors
|January 12, 2024
概括
这项研究介绍了一种便携式传感器,通过测量微通道抵抗的变化来检测亚毒素B1 (AFB1). 该传感器在玉米样本中实现了高度敏感和特定的AFB1检测.
科学领域:
- 生物传感器是一种生物传感器.
- 分析化学 分析化学
- 微流体学 微流体学
背景情况:
- 微通道表面电荷密度的变化可以改变系统电阻.
- 非洲毒素B1 (AFB1) 是一种重要的食品污染物,需要敏感的检测方法.
研究的目的:
- 开发一款便携式,具有成本效益的传感器用于AFB1检测.
- 为了利用微通道阻力变化用于敏感的分析物量化.
主要方法:
- 微通道的修改与cDNA/体复合体.
- 在AFB1识别时监控阻力变化.
- 优化传感器参数以提高性能.
主要成果:
- 阻力与AFB1度 (100 fM-10 nM) 的对数之间的线性关系.
- 达到46 fM (S/N = 3) 的检测极限.
- 在玉米样本中测定AFB1含量的成功应用.
结论:
- 开发的传感器提供了高灵敏度,特异性,可重复性和稳定性.
- 电阻测量方法最大限度地减少了矩阵干扰.
- 这种用户友好和准确的传感器适用于现实世界AFB1分析.
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