TD-DFT引导的先进电子眼感应技术用于现场量化Fe,Cr,F和As在环境,生物和食品样本中的含量
Shrikant Kashyap1, Rajasekhar Ravula2, Neha Majee1
1Department of Chemical Engineering, and Center for Nanotechnology, Indian Institute of Technology Guwahati.
Journal of visualized experiments : JoVE
|October 6, 2025
概括
本研究介绍了一种新型电子眼 (E-Eye) 多重点诊所检测 (POCT) 套件,用于同时检测环境污染物. 开发的套件在分析环境,生物和食品样本方面表现出高准确性.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 计算化学的计算化学
背景情况:
- 护理点检测 (POCT) 套件对于快速诊断至关重要.
- 多重检测提高了同时分析多个分析物的效率.
- 像TD-DFT这样的计算方法可以指导传感器设计.
研究的目的:
- 详细介绍了E-Eye启用多重复合POCT套件的设计和开发.
- 使用时间依赖密度函数理论 (TD-DFT) 来优化传感器性能.
- 创建一个具有成本效益和准确的设备来检测Fe,Cr,As和F.
主要方法:
- 时间依赖密度函数理论 (TD-DFT) 使用高斯式09和高斯视图5.0.0进行计算.
- 基于发光二极管/依赖光电阻 (LED/LDR) 原理制造一个光学传感器 (E-Eye).
- 开发一种多重复合装置,用于在各种样本类型中同时检测多个元素.
主要成果:
- TD-DFT分析成功确定了针对目标元素的λmax,指导了传感器的开发.
- 制造的E-Eye设备实现了高精度和准确性 (95.3%的环境,94.7%的生物,95.4%的食品).
- 多重传感器展示了同步检测能力,与AAS和UV-Vis.等黄金标准方法进行验证.
结论:
- 开发的E-Eye启用POCT套件为多重检测污染物提供了可靠和准确的方法.
- TD-DFT是合理设计和优化光学传感器的一个有价值的工具.
- 这种本土技术有望在环境,生物和食品安全监测中得到广泛应用.
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