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Micro-Ring Resonator Enables Fast, Accurate Detection of Ebola Virus

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A diagnostic technique for the Ebola virus uses a micro-ring resonator and a biomarker to quickly identify the presence of the virus in blood samples. Researchers at Washington University School of Medicine developed the technique, in collaboration with colleagues at the University of Michigan and biotech company Integrated Biotherapeutics. In tests, the micro-ring resonator sensor detected the biomarker for the virus — soluble glycoprotein (sGP) — in less than 40 min and at low ng/mL concentrations. Micro-ring resonators operate on the principle of whispering-gallery...Read full article

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    Published: July 2022
    Glossary
    whispering gallery mode
    Whispering gallery mode (WGM) refers to a phenomenon in wave physics, particularly in optics, where waves, such as light or sound waves, are trapped and circulate along the periphery of a curved surface. The term "whispering gallery" is derived from the acoustic behavior observed in certain architectural structures, like domes or circular galleries, where whispers or sounds made at one point can be heard clearly at another distant point due to multiple reflections along the curved surface. In...
    microring resonator
    A microring resonator is a compact optical device that utilizes the resonant behavior of light within a small ring-shaped waveguide structure to selectively enhance or filter certain wavelengths of light. Microring resonators are essential components in integrated photonics and are used in various applications, including optical communication systems, sensing, and signal processing. Key features and principles of microring resonators include: Ring structure: A microring resonator consists...
    cell
    1. A single unit in a device for changing radiant energy to electrical energy or for controlling current flow in a circuit. 2. A single unit in a device whose resistance varies with radiant energy. 3. A single unit of a battery, primary or secondary, for converting chemical energy into electrical energy. 4. A simple unit of storage in a computer. 5. A limited region of space. 6. Part of a lens barrel holding one or more lenses.
    BiophotonicsLaserswhispering gallery modewhispering gallerywhispering gallery mode resonanceswhispering gallery mode resonatorMicroring resonatormedicaldiagnosticsAmericasResearch & TechnologyBusinessWashington UniversityWashington University in St. LouismolecularCellebolabiosensingmicro-ring resonatorwhispering-gallery modeBioScanTechnology News

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