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    Exposure to Pollutants, Increased Free-radical Damage speeds up Aging

    June 23, 2021, Categories  Biology/Biotechnology, Health/Medical

    blooming rose, dying rose
    A new study by WVU School of Medicine researcher Eric Kelley suggests that unrepaired DNA damage can increase the speed of aging. Kelley and his colleagues genetically modified mice to remove a crucial DNA-repair protein from some of their stem cells. Without this protein, the mice were unable to fix damaged DNA accrued in their immune cells. By the time the genetically modified mice were 5 months old, they resembled a regular two-year-old mouse. For context, a two-year-old mouse is similar in age to an 80-year-old human. (WVU Illustration/Aira Burkhart)

    A new study suggests that unrepaired DNA damage can increase the speed of aging. Every day, our bodies face a bombardment of UV rays, ozone, cigarette smoke, industrial chemicals and other hazards.

    This exposure can lead to free-rad...

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    New Mid-Infrared Laser System could detect Atmospheric Chemicals

    June 29, 2016, Categories  Biology/Biotechnology, Chemistry/Nanotechnology, Environment/Geology

    This diagram depicts the way a mid-infrared laser (red cylinder, left) can send a beam through the atmosphere that generates filaments of ionized air molecules (multicolored beam, center, shown with magnified view). These filaments, which can be kilometers long, help to keep the beam concentrated enough to generate mid-infrared light in air (blue cloud, right) that can reveal detailed chemical composition through spectral analysis (chart at right) of the light picked up by a mid-infrared detector (bottom). Credit: Diagram courtesy of the researchers

    This diagram depicts the way a mid-infrared laser (red cylinder, left) can send a beam through the atmosphere that generates filaments of ionized air molecules (multicolored beam, center, shown with magnified view). These filaments, which can be kilometers long, help to keep the beam concentrated enough to generate mid-infrared light in air (blue cloud, right) that can reveal detailed chemical composition through spectral analysis (chart at right) of the light picked up by a mid-infrared detector (bottom). Credit: Diagram courtesy of the researchers

    Researchers have found a new way of using mid-infrared lasers to turn regions of molecules in the open air into glowing filaments of electrically charged gas, or plasma...

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