We are grateful for funding from the Natural Science Foundation of China(NSFC Grant No.62001322);the Tianjin Municipal Science and Technology Project(No.20JCQNJC011200);the National Key Research and Development Program(No.2020YFB2008801);the Nanchang Institute for Microtechnology of Tianjin University.
The World Health Organization has declared COVID-19 a pandemic.The demand for devices or systems to diagnose and track COVID-19 infections noninvasively not only in hospitals but also in home settings has led to incre...