Thermophoretic collection of virus-laden (SARS-CoV-2) aerosols

Xiangzhi Zhang, Jing Wang, Chengbo Wang, Zheng Lian, Yong Shi, Yong Ren, Yuying Yan

Research output: Journal PublicationArticlepeer-review

4 Citations (Scopus)
50 Downloads (Pure)


Detecting the existence of SARS-CoV-2 in the indoor atmosphere is a practical solution to track the prevalence and prevent the spread of the virus. In this work, a thermophoretic approach is presented to collect the novel coronavirus-laden aerosols from the air and accumulate to high concentrations adequate for the sensitivity of viral RNA detection. Among the factors, the density and particle size have negligible effects on particle trajectory, while the vertical coordinates of particles increase with the rise in heating source temperature. When the heating temperature is higher than 355 K, all of the particles exit the channel from one outlet; thus, the collecting and accumulating of virus-laden aerosols can be realized. This study provides a potential approach to accelerate the detection of SARS-CoV-2 and avoid a false negative in the following RNA test. © 2021 Author(s).
Original languageEnglish
Pages (from-to)024101
Issue number2
Early online date12 Mar 2021
Publication statusPublished - Mar 2021


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