Microfluidic Extraction of Biomarkers Using Water as Solvent

Terahertz modulation of permittivity of water would enable solvation of molecules of interest. A proposed device, denoted a miniature microfluidic biomarker extractor (μ-EX), would extract trace amounts of chemicals of interest from samples, such as soils and rocks. Traditionally, such extractions are performed on a large scale with hazardous organic solvents; each solvent capable of dissolving only those molecules lying within narrow ranges of specific chemical and physical characteristics that notably include volatility, electric charge, and polarity. In contrast, in the μ-EX, extractions could be performed by use of small amounts (typically between 0.1 and 100 μL) of water as a universal solvent.

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