Most viruses including COVID-19 have sizes ranging from 0.1 to 0.3 um but particulate matter 0.1 and 0.3 are difficult to be detected by current PM sensors. We have developed the plasmon-mediated light scattering effect to improve the performance of PM sensors and enhance their efficiency by 10 times, leading to the detection limit lower than 1 μg/m3 for 0.1 and 0.3 particulates.
Improve the sensitivity of current PM sensor down to 0.1 and 0.3, which are the sizes of most of the viruses.
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