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Switzerland has developed a new sensor that can detect new coronavirus in the air

Switzerland has developed a new sensor that can detect new coronavirus in the air

Geneva, April 21  A Swiss research team announced on the 21st that they have developed a biosensor capable of sensitively and reliably detecting new coronavirus in the air, which can not only be used as a clinical diagnosis substitute for new coronavirus infection The method can also be used to monitor the presence of new coronavirus in the air in crowded places such as train stations and hospitals in real time.

  The Swiss Federal Institute of Materials Science and Technology issued a communiqué on the 21st that the new biosensor was developed by the agency in cooperation with the Federal University of Zurich and the University Hospital of Zurich, It is based on a glass substrate and is called "gold nanometer". The "island" gold nanostructure, the researchers "grafted" the artificially synthesized DNA (deoxyribonucleic acid) receptor that matches the RNA (ribonucleic acid) sequence of the new coronavirus onto the above-mentioned gold nanostructure so that it can recognize the new coronavirus.

  According to reports, this new sensor uses two different effects, "localized surface plasmon resonance (LSPR)" and "plasma photothermal (PPT)", to increase the reliability of detection. Experiments have shown that the sensor can accurately identify the two coronaviruses with similar gene sequences, such as the new coronavirus and severe acute respiratory syndrome (SARS) coronavirus, and obtain the detection results within a few minutes.

  Related papers have been published in the Journal of the American Chemical Society Nano.

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