一个配有智能手机的色度传感平台,用于基于PANI-MnO2纳米酶的有机农药检测
Cheng-Lin Yang1, Li-Hong Yu1, Yue-Hong Pang2
1State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China.
Analytica chimica acta
|December 4, 2023
概括
一个新的色度传感器可以使用PANI-MnO2纳米酶检测有机农药 (OPs). 这种预算友好的方法可以在环境和食品样本中快速地在现场检测OP.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 有机农药 (OPs) 对人类健康和生态系统构成重大风险.
- 有效的检测方法对于对食品和环境样本中的OP监测至关重要.
研究的目的:
- 开发一个具有成本效益,快速和方便的色度传感平台,用于检测有机农药.
- 使用PANI-MnO2纳米酶进行敏感和选择性的OP分析.
主要方法:
- 在室温下合成了具有氧化酶模拟活性的PANI-MnO2纳米酶.
- 利用酸 (AA) 抑制TMB的氧化,并通过酸酸酶 (ALP) 从酸二酸 (AAP) 生产TMB.
- 利用OPs减少ALP活动以恢复纳米酶活动以进行色度检测,并配合智能手机平台.
主要成果:
- PANI-MnO2纳米酶在2分钟内直接氧化了TMB.
- 对草甘的检测 (模型OP) 显示线性范围为0.5050μM,检测极限为0.39μM.
- 该方法实现了敏感和选择性的OP检测,使无仪器,现场定性和半定量分析成为可能.
结论:
- 成功开发了一种新的,预算友好的色度测量传感平台,用于OP检测.
- 基于纳米酶的PANI-MnO2传感器为现场OP监测提供了快速,灵敏和选择性的方法.
- 与智能手机平台的集成为OPs的现场分析提供了切实可行的替代方案.
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