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10.1021/acssensors.1c00235

http://scihub22266oqcxt.onion/10.1021/acssensors.1c00235
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33822583!ä!33822583

suck abstract from ncbi


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pmid33822583      ACS+Sens 2021 ; 6 (5): 1891-1898
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  • Vertical Flow Cellulose-Based Assays for SARS-CoV-2 Antibody Detection in Human Serum #MMPMID33822583
  • Kim S; Hao Y; Miller EA; Tay DMY; Yee E; Kongsuphol P; Jia H; McBee M; Preiser PR; Sikes HD
  • ACS Sens 2021[May]; 6 (5): 1891-1898 PMID33822583show ga
  • Rapid and inexpensive serological tests for severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) antibodies are essential to conduct large-scale seroprevalence surveys and can potentially complement nucleic acid or antigen tests at the point of care. During the COVID-19 pandemic, extreme demand for traditional lateral flow tests has stressed manufacturing capacity and supply chains. Motivated by this limitation, we developed a SARS-CoV-2 antibody test using cellulose, an alternative membrane material, and a double-antigen sandwich format. Functionalized SARS-CoV-2 antigens were used as both capture and reporter binders, replacing the anti-human antibodies currently used in lateral flow tests. The test could provide enhanced sensitivity because it labels only antibodies against SARS-CoV-2 and the signal intensity is not diminished due to other human antibodies in serum. Three-dimensional channels in the assay were designed to have consistent flow rates and be easily manufactured by folding wax-printed paper. We demonstrated that this simple, vertical flow, cellulose-based assay could detect SARS-CoV-2 antibodies in clinical samples within 15 min, and the results were consistent with those from a laboratory, bead-based chemiluminescence immunoassay that was granted emergency use approval by the US FDA.
  • |*COVID-19[MESH]
  • |*SARS-CoV-2[MESH]
  • |Antibodies, Viral[MESH]
  • |Cellulose[MESH]
  • |Humans[MESH]
  • |Immunoassay[MESH]
  • |Pandemics[MESH]
  • |Sensitivity and Specificity[MESH]


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  • suck abstract from ncbi

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