集成的光电化学-光双模式Aptasensor用于敏感检测Fumonisin B1
Xiang Ren1, Xiaoran Yang1, Tingting Wu2
1Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China.
Analytical chemistry
|September 2, 2025
概括
开发了一种新型的双模式口味传感器,用于敏感检测食物中传递的毒素 - - 烟素B1 (FB1). 这种光电化学光 (PEC-FL) 平台通过结合两个检测方法来提高准确性,提供可靠的FB1分析.
科学领域:
- 分析化学
- 生物传感
- 材料科学
背景情况:
- 长期接触富蒙尼辛B1 (FB1) 对人类健康构成重大风险.
- 准确和敏感的FB1检测方法对于食品安全至关重要.
- 现有的检测方法可能会受到环境或操作干扰.
研究的目的:
- 开发一种新型的光电化学光 (PEC-FL) 双模式适应传感器,用于敏感且可靠的FB1检测.
- 使用双功能信号标签 (Tb@Zr-MOF) 和Z模式异质连接矩阵 (BiOI/CuBi2O4) 进行信号放大和增强电子传输.
- 实现PEC和FL模式之间的交叉验证,以尽量减少检测错误.
主要方法:
- 使用Tb@Zr-MOF作为信号标签和BiOI/CuBi2O4作为传感矩阵的PEC-FL双模式适应传感器的制造.
- 在BiOI/CuBi2O4矩阵上加载aptamers以进行特定的FB1识别.
- 利用Tb@Zr-MOF的光发射及其光电灭效应来产生信号.
- 研究BiOI/CuBi2O4的Z模式异质连接特性,以改善电子转移.
主要成果:
- 拟议的适应传感器在PEC (100 fg/mL-1 μg/mL) 和FL (100 fg/mL-1 μg/mL) 两种模式中都显示出FB1的广泛线性检测范围.
- 达到PEC的17.78 fg/mL和FL的21.93 fg/mL的高度敏感检测极限 (S/N=3).
- 双模式检测策略有效地减少了与单模式测量相关的错误,提高了可靠性.
结论:
- 研发的PEC-FL双模式适应传感器为FB1检测提供了灵敏,准确和可靠的平台.
- 先进材料 (MOF,异质连接) 和双模式检测的组合为真菌毒素分析提供了有前途的方法.
- 这种方法在确保食品安全和保护公共健康方面具有重大应用潜力.
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