期刊
ACS SENSORS
卷 -, 期 -, 页码 -出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssensors.2c01597
关键词
single-atom catalysts; Ni-N2O2/AB; mini-exhaled nitric oxide sensor; preliminary screening; COVID-19
资金
- National Key Research and Development Program of China
- National Natural Science Foundation of China
- Fundamental Research Funds of Shandong University
- [2017YFA0204800]
- [21525315]
- [2019HW016]
A paper-printing sensor based on a nickel-single atom electrocatalyst is reported for preliminary screening of COVID-19 by detecting fractional exhaled nitric oxide. The sensor exhibits high sensitivity and rapid response, making it suitable for everyday COVID-19 screening.
A new coronavirus, SARS-CoV-2, has caused the coronavirus disease-2019 (COVID-19) epidemic. A rapid and economical method for preliminary screening of COVID-19 may help to control the COVID-19 pandemic. Here, we report a nickel singleatom electrocatalyst that can be printed on a paper-printing sensor for preliminary screening of COVID-19 suspects by efficient detection of fractional exhaled nitric oxide (FeNO). The FeNO value is confirmed to be related to COVID-19 in our exploratory clinical study, and a machine learning model that can accurately classify healthy subjects and COVID-19 patients is established based on FeNO and other features. The nickel single-atom electrocatalyst consists of a single nickel atom with N2O2 coordination embedded in porous acetylene black (named Ni-N2O2/AB). A paper-printed sensor was fabricated with the material and showed ultrasensitive response to NO in the range of 0.3-180 ppb. This ultrasensitive sensor could be applied to preliminary screening of COVID-19 in everyday life.
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