Electrochemical Capillary Driven Immunoassay for Detection of SARS-CoV-2.

Electrochemical Capillary Driven Immunoassay for Detection of SARS-CoV-2.
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DOI:
10.1021/acsmeasuresciau.2c00037
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发表时间:
2022-12-21
期刊:
ACS MEASUREMENT SCIENCE AU
影响因子:
--
通讯作者:
Henry, Charles S.
Henry, Charles S.
中科院分区:
其他
文献类型:
--
作者:
Clark, Kaylee M.;Schenkel, Melissa S.;Pittman, Trey W.;Samper, Isabelle C.;Anderson, Loran B. R.;Khamcharoen, Wisarut;Elmegerhi, Suad;Perera, Rushika;Siangproh, Weena;Kennan, Alan J.;Geiss, Brian J.;Dandy, David S.;Henry, Charles S.

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The COVID-19 pandemic focused attention on a pressing need for fast, accurate, and low-cost diagnostic tests. This work presents an electrochemical capillary driven immunoassay (eCaDI) developed to detect SARS-CoV-2 nucleocapsid (N) protein. The low-cost flow device is made of polyethylene terephthalate (PET) and adhesive films. Upon addition of a sample, reagents and washes are sequentially delivered to an integrated screen-printed carbon electrode for detection, thus automating a full sandwich immunoassay with a single end-user step. The modified electrodes are sensitive and selective for SARS-CoV-2 N protein and stable for over 7 weeks. The eCaDI was tested with influenza A and Sindbis virus and proved to be selective. The eCaDI was also successfully applied to detect nine different SARS-CoV-2 variants, including Omicron.
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