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10.1021/acsami.1c08174

http://scihub22266oqcxt.onion/10.1021/acsami.1c08174
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34379400!ä!34379400

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suck abstract from ncbi


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pmid34379400      ACS+Appl+Mater+Interfaces 2021 ; 13 (33): 38990-39002
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  • Developing a SARS-CoV-2 Antigen Test Using Engineered Affinity Proteins #MMPMID34379400
  • Kim S; Yee E; Miller EA; Hao Y; Tay DMY; Sung KJ; Jia H; Johnson JM; Saeed M; Mace CR; Yuksel Yurt D; Sikes HD
  • ACS Appl Mater Interfaces 2021[Aug]; 13 (33): 38990-39002 PMID34379400show ga
  • The ongoing COVID-19 pandemic has clearly established how vital rapid, widely accessible diagnostic tests are in controlling infectious diseases and how difficult and slow it is to scale existing technologies. Here, we demonstrate the use of the rapid affinity pair identification via directed selection (RAPIDS) method to discover multiple affinity pairs for SARS-CoV-2 nucleocapsid protein (N-protein), a biomarker of COVID-19, from in vitro libraries in 10 weeks. The pair with the highest biomarker sensitivity was then integrated into a 10 min, vertical-flow cellulose paper test. Notably, the as-identified affinity proteins were compatible with a roll-to-roll printing process for large-scale manufacturing of tests. The test achieved 40 and 80 pM limits of detection in 1x phosphate-buffered saline (mock swab) and saliva matrices spiked with cell-culture-generated SARS-CoV-2 viruses and is also capable of detection of N-protein from characterized clinical swab samples. Hence, this work paves the way toward the mass production of cellulose paper-based assays which can address the shortages faced due to dependence on nitrocellulose and current manufacturing techniques. Further, the results reported herein indicate the promise of RAPIDS and engineered binder proteins for the timely and flexible development of clinically relevant diagnostic tests in response to emerging infectious diseases.
  • |Antigens, Viral/*analysis[MESH]
  • |Biomarkers/analysis[MESH]
  • |Biosensing Techniques[MESH]
  • |COVID-19 Serological Testing/*methods[MESH]
  • |COVID-19/prevention & control[MESH]
  • |Cellulose/chemistry[MESH]
  • |Enzyme-Linked Immunosorbent Assay/methods[MESH]
  • |Fluorescent Dyes/chemistry[MESH]
  • |Humans[MESH]
  • |Microfluidic Analytical Techniques/methods[MESH]
  • |Nucleocapsid Proteins/*analysis[MESH]
  • |Peptide Library[MESH]
  • |Protein Binding[MESH]


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  • suck abstract from ncbi

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