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The sol–gel-derived array DNA biosensors coupled with a fluorescence detection system and a robotic pin-printing platform were fabricated to detect polycyclic aromatic hydrocarbons (PAHs) in water and serum samples. Parameters including sol percentage, doped-amount of glycerol, dye probes, the surface coating, and DNA concentration were optimized. In addition, two fluorescent dyes, fluorescein isothiocyanate...
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