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10.1021/acssensors.1c00795

http://scihub22266oqcxt.onion/10.1021/acssensors.1c00795
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34047541!ä!34047541

suck abstract from ncbi


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pmid34047541      ACS+Sens 2021 ; 6 (6): 2136-2140
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  • Facile Determination of COVID-19 Seroconversion via Nonradiative Energy Transfer #MMPMID34047541
  • Avila-Huerta MD; Ortiz-Riano EJ; Mancera-Zapata DL; Cortes-Sarabia K; Morales-Narvaez E
  • ACS Sens 2021[Jun]; 6 (6): 2136-2140 PMID34047541show ga
  • Serological tests are crucial in a pandemic scenario, since they are a valuable tool to spot those citizens with potential immunity, specific regions with herd immunity or particular at-risk populations, as well as acquired immunity after vaccination. Hence, high-throughput, fast, cost-effective, and straightforward technologies facilitating interrogation of COVID-19 seroconversion are an existing need. Herein, we developed an innovative assay for the determination of COVID-19 seroconversion. Fluorophore-labeled SARS-CoV-2 spike receptor-binding domain recombinant protein (F-RBD) was discovered to operate as a bioprobe that emits a strong fluorescence upon COVID-19 antibody detection; however, F-RBD fluorescence was deactivated by graphene oxide-decorated surfaces when COVID-19 antibodies are absent in the sample. With a cost of less than 0.5 USD per test (at laboratory scale), the biosensing system offers optimum results within 42 min. To demonstrate that this technology is technically sound in a relevant environment, 34 human serum samples were analyzed and clearly differentiated, requiring a tiny amount of serum (1 muL to be later diluted in saline buffer).
  • |*COVID-19[MESH]
  • |Antibodies, Viral[MESH]
  • |Energy Transfer[MESH]
  • |Humans[MESH]
  • |SARS-CoV-2[MESH]


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