News

  • Small convenient medical devices

    Byscientist

    The thinking is that sophisticated devices are needed for some biomarker studies and medicine. However, it is relatively simple to build some devices thought complicated with materials that are commonly available in electronic shops. For example, measurement of alcohol used to require sophisticated gas chromatography. With commonly available sensors, like a “MQ3 gas sensor” available…

  • Photoacoustic imaging

    Byscientist

    It is difficult to image at high resolution using conventional optics to any reasonable depth below the skin. There are many ways to counteract this and one unique method is called photoacoustic imaging. This method was invented by Lihong Wang at Washington University in St Louis. The phenomenon of acoustic imaging is fascinating use of…

  • 3D Scanning

    Byscientist

    There are many ways to scan in 3D and there are many uses for scanning in 3D. One of the major ones has been geology and civil engineering. Imagine when you are making roads, the one thing that you require is the lay of the land. This will enable the building of roads that is…

  • Malaria games

    Byscientist

    We think that image processing problems are difficult and interesting but there are others that elude us all the time. Malaria, a mosquito borne illness affects nearly 600,000 patients per day. The diagnosis unfortunately in many countries still uses the traditional Giemsa stain of blood. This requires a pathologist to study the slides and then…

  • Lens free microscopy

    Byscientist

    Lens free microscopy Microscopy whether electron microscopy or with visible light requires lenses. For electron microscopy, lenses incur significant design challenges and add aberrations. A startup in UK uses technology invented by Professor John Rodenberg to remove lenses altogether and compute the image from the diffraction pattern of the sample. This is similar to a…

  • Micro-Microscope

    Byscientist

    Cell phone camera’s are small. However, typically microscopes are large bulky devices that have large lenses to collect light and are used for getting high resolution magnified images that are coupled to bulkier high sensitivity camera’s. But what about in-vivo microscopy where the animal needs to be brought below the microscope to focus. The laboratories…

  • Bluesky: Diffraction images from flow cytometer

    Byscientist

    Flow cytometry typically flows particles or cells through a laminar flow cell into an interrogating laser beam to be read out as flourescent signal with a photomultiplier or photodiode. The read out is typically the integrated intensity or a two dimensional projection of a cell. The residence time is in order of 10 micro-seconds. Cellular…