A SARS-CoV-2 coronavirus nucleocapsid protein antigen-detecting lateral flow assay.

A SARS-CoV-2 coronavirus nucleocapsid protein antigen-detecting lateral flow assay.
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DOI:
10.1371/journal.pone.0258819
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发表时间:
2021
期刊:
影响因子:
3.7
通讯作者:
Nichols KP
Nichols KP
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Grant BD;Anderson CE;Alonzo LF;Garing SH;Williford JR;Baughman TA;Rivera R;Glukhova VA;Boyle DS;Dewan PK;Weigl BH;Nichols KP

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Inexpensive, simple, rapid diagnostics are necessary for efficient detection, treatment, and mitigation of COVID-19. Assays for SARS-CoV2 using reverse transcription polymerase chain reaction (RT-PCR) offer good sensitivity and excellent specificity, but are expensive, slowed by transport to centralized testing laboratories, and often unavailable. Antigen-based assays are inexpensive and can be rapidly mass-produced and deployed at point-of-care, with lateral flow assays (LFAs) being the most common format. While various manufacturers have produced commercially available SARS-Cov2 antigen LFAs, access to validated tests remains difficult or cost prohibitive in low-and middle-income countries. Herein, we present a visually read open-access LFA (OA-LFA) using commercially-available antibodies and materials for the detection of SARS-CoV-2. The LFA yielded a Limit of Detection (LOD) of 4 TCID50/swab of gamma irradiated SARS-CoV-2 virus, meeting the acceptable analytical sensitivity outlined by in World Health Organization target product profile. The open-source architecture presented in this manuscript provides a template for manufacturers around the globe to rapidly design a SARS-CoV2 antigen test.
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与市售测定法相比,开放式SARS-COV-2抗原检测横向流量测定法的临床验证。
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