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Docket #: S17-114

Fully Water-Soluble, Fluorescence-Based, Synthetic Small-Molecule Hydrazine Sensor for Liquid Analysis

Stanford researchers have invented a fully water-soluble, orange hydrazine sensor that can robustly quantify the toxin hydrazine in liquids such as drinking water, waste water (treated and untreated), and bodily fluids. The sensor turns colorless upon exposure to hydrazine in water; the resulting colorless dye brightly fluoresces green when exposed to UV light.

Superior to many existing sensors, water solubility is a new feature of this sensor that allows an entire sample to be easily mixed for enhanced sensing sensitivity and reliability. The water solubility and spectral properties of this dye make the sensor ideal for hydrazine level assessment in aqueous samples.

Figure


Figure description - Invention of Water-Soluble Alternative: SPT

Stage of Research

  • Invented hydrazine permeability assay
  • Applications

    • Drinking water safety assessment
    • Environmental water assessment
    • Waste water treatment
    • Urinalysis
    • Basic science research (e.g. hydrazine production/diffusion experiments)

    Advantages

    • Full water solubility enables:
      • Higher amounts of dye for faster sensing
      • More consistent results
      • Ease of dispersion if analyzing large sample
    • Faster sensing
    • Easy method to detect presence of hydrazine
    • Straightforward to synthesize

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