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Scientists at Tampere University in Finland have found that different species react to nanoparticles at the molecular level in the same way. The researchers analysed hundreds of nanoparticle exposures and found that different species have a similar epigenetic molecular response to these particles. The newly discovered ancestral defence mechanism, which has been present in our ancestors, explains how cells and organisms adapt to long-term exposure to nanosized materials.

Living organisms are exposed to nanoparticles through different products and air pollution every day. After examining hundreds of exposures, researchers at Tampere University revealed how various species share a specific epigenetic molecular response to particulate matter. They have now explained the mechanism through which cells and organisms adapt to long-term exposures to nano-sized materials.

Screening from thousands of drugs, a team at the University of Tampere say they pinpointed two substances that prevented cells from being infected by coronavirus.