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A New Technology Changing Biomolecular Analysis

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FOx Biosystems offers novel, cost-effective highly performant monitoring platforms

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SPR technology

The proprietary FOx Biosystems technology uses the well-established Surface Plasmon Resonance (SPR) principle for biomolecular interaction analyses. The SPR effect is achieved by coupling a white light source through a bifurcated fiber to the fiber optic sensor probe. In this consumable probe, the light interacts with a 50 nm gold layer and senses the refractive index up to ~200 nm away from the outer surface. At the pigtail end of the probe, light is reflected back through the bifurcated fiber to a spectrometer. Unlike microfluidic sensor chips, the sensor probe is simply dipped into the liquid sample to measure biomolecule interaction directly.
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The resonance condition is monitored by tracking the wavelength position at which a minimum intensity of light is reflected. The sensor probe is coupled to a cost-effective, high-end and semi-automated analytical benchtop instrument that enables real-time analysis of bio-molecular interactions.

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FOx Biosystems turned an optical fiber into a mass sensitive sensor. The fiber optic surface plasmon resonance (FO-SPR) sensor is coated with bioreceptor molecules which can bind to the target molecules of interest. The binding of the target biomolecules changes the refractive index resulting in a sensor signal.
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This sensor technology can be used for both labelled or label-free detection, enabling the quantification of specific proteins, small molecules, DNA or cells in microliter volumes. The ability to detect different target molecules with one-single device by simply switching probes is a key differentiator compared to competing technologies. In a few minutes time frame, the FOx Biosystems technology can provide information on the binding affinity, kinetics and target concentration.

Case studies

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Therapeutic Biologicals Monitoring

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Bacteriophage Kinetic Affinity Analysis

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Dry Blood Spot Sampling

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  • Home
  • Technology
    • Technology
    • Proteins and antibodies
    • Crude Samples
    • Bioprocess
    • Cells and Microvesicles
    • Other Applications
  • Products and services
    • Products and services
    • White FOx 1.0
    • Services
  • ABOUT FOX
    • The company
    • Projects and Partnerships >
      • Link2Innovate
    • Management and founders
    • Careers >
      • Senior System Engineer
      • Manufacturing Manager Biosensors
  • NEWS
  • Contact