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    Portable Device Uses Photomultiplier to Detect Foodborne Illness

    Article obtained from Photonics RSS Feed.

    Researchers at Purdue University have developed a bioluminescence-sensing assay coupled with a portable light detection device that works with smartphones and laptops to do on-site testing for E. coli in food samples.

    To facilitate the use of a silicon photomultiplier (SiPM) in a portable, field-deployable device, the researchers designed an electrical circuit consisting of an amplifier, comparator, and microcontroller to send the data from the SiPM to laptops and smartphones via Bluetooth technology. Using 3D printing, they created a portable cradle for housing the SIPM. The SiPM uses low light from the assay to detect the presence of bacteria.

    Researchers from Purdue created a portable device that works with smartphones and…

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    Feb, 14 2020 |

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