Novel Dynamic Technique, Nano-DIHM, for Rapid Detection of Oil, Heavy Metals, and Biological Spills in Aquatic Systems,Analytical Chemistry

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Novel Dynamic Technique, Nano-DIHM, for Rapid Detection of Oil, Heavy Metals, and Biological Spills in Aquatic Systems
Analytical Chemistry ( IF 6.7 ) Pub Date : 2022-08-05 , DOI: 10.1021/acs.analchem.2c02396
Ryan Hall ₁ , Devendra Pal ₂ , Parisa A Ariya _{1,

2}

Affiliation

Numerous anthropogenic and natural particle contaminants exist in diverse aquatic systems, with widely unknown environmental fates. We coupled a flow tube with a digital in-line holographic microscopy (nano-DIHM) technique for aquatic matrices, for in situ real-time analysis of particle size, shape, and phase. Nano-DIHM enables 4D tracking of particles in water and their transformations in three-dimensional space. We demonstrate that nano-DIHM can be automated to detect and track oil spills/oil droplets in dynamic systems. We provide evidence that nano-DIHM can detect the MS2 bacteriophage as a representative biological-viral material and mercury-containing particles alongside other heavy metals as common toxic contaminants. Nano-DIHM shows the capability of observation of combined materials in water, characterizing the interactions of various particles in mixtures, and particles with different coatings in a suspension. The observed sizes of the particles and droplets ranged from ∼1 to 200 μm. We herein demonstrate the ability of nano-DIHM to characterize and distinguish particle-based contaminants in water and their interactions in both stationary and dynamic modes with a 62.5 millisecond time resolution. The fully automated software for dynamic and real-time detection of contaminants will be of global significance. A comparison is also made between nano-DIHM and established techniques such as S/TEM for their different capabilities. Nano-DIHM can provide a range of physicochemical information in stationary and dynamic modes, allowing life cycle analysis of diverse particle contaminants in different aquatic systems, and serve as an effective tool for rapid response for spills and remediation of natural waters.

中文翻译：

用于快速检测水生系统中的油、重金属和生物泄漏的新型动态技术 Nano-DIHM

许多人为和天然颗粒污染物存在于不同的水生系统中，其环境归宿广为人知。我们将流管与用于水生基质的数字在线全息显微镜 (nano-DIHM) 技术相结合，用于原位颗粒大小、形状和相的实时分析。Nano-DIHM 能够对水中的粒子及其在 3D 空间中的转换进行 4D 跟踪。我们证明纳米 DIHM 可以自动检测和跟踪动态系统中的漏油/油滴。我们提供的证据表明，纳米 DIHM 可以将 MS2 噬菌体检测为具有代表性的生物病毒材料，并将含汞颗粒与其他重金属一起检测为常见的有毒污染物。Nano-DIHM 显示了观察水中组合材料的能力，表征混合物中各种颗粒的相互作用，以及悬浮液中具有不同涂层的颗粒。观察到的颗粒和液滴的尺寸范围为~1至200μm。我们在此展示了 nano-DIHM 能够以 62.5 毫秒的时间分辨率表征和区分水中基于颗粒的污染物及其在静态和动态模式下的相互作用。用于动态和实时检测污染物的全自动软件将具有全球意义。还对纳米 DIHM 和 S/TEM 等成熟技术进行了比较，以了解它们的不同功能。Nano-DIHM 可以在静态和动态模式下提供一系列物理化学信息，允许对不同水生系统中的各种颗粒污染物进行生命周期分析，并作为快速响应溢漏和天然水域修复的有效工具。用于动态和实时检测污染物的全自动软件将具有全球意义。还对纳米 DIHM 和 S/TEM 等成熟技术进行了比较，以了解它们的不同功能。Nano-DIHM 可以在静态和动态模式下提供一系列物理化学信息，允许对不同水生系统中的各种颗粒污染物进行生命周期分析，并作为快速响应溢漏和天然水域修复的有效工具。用于动态和实时检测污染物的全自动软件将具有全球意义。还对纳米 DIHM 和 S/TEM 等成熟技术进行了比较，以了解它们的不同功能。Nano-DIHM 可以在静态和动态模式下提供一系列物理化学信息，允许对不同水生系统中的各种颗粒污染物进行生命周期分析，并作为快速响应溢漏和天然水域修复的有效工具。

更新日期：2022-08-05

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