The epidemic in Hong Kong has not eased in recent days, and gradually wearing masks has become a living habit for the public to avoid catching the virus. However, China has recently developed a new mask that allows users to detect whether there is COVID-19 or the flu around them while wearing them.
According to Bloomberg, a team of 6 scientists from Tongji University in Shanghai managed to develop a mask-mounted sensor that can detect whether the air near the wearer contains COVID-19, H5N1 (bird flu type A) within 10 minute), the causative agent of the H1N1 virus (swine flu), and transfer the results to the device.
The article of the American scientific magazine “Matter” drew attention to the fact that the sensor carries nucleic acid aptamers, which can recognize the unique proteins of pathogens. The team installed a multi-channel sensor with three nucleic acid adapters in the mask, enabling it to identify COVID-19, H5N1 and H1N1 at the same time.
This sensor is rechargeable with a lithium battery, and users only need to use the sensor outside the mask. The team carried out a pathogen injection test for the sensor indoors, simulating someone injecting the pathogen while talking or coughing. They found that the sensor can detect a liquid response that is about 70-560 times lower than a sneeze, and both will send warning to the device.
Source: Bloomberg
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