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10.1016/j.bios.2021.113550

http://scihub22266oqcxt.onion/10.1016/j.bios.2021.113550
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34391066!8349359!34391066
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suck abstract from ncbi


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pmid34391066      Biosens+Bioelectron 2021 ; 192 (ä): 113550
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  • Track-etched membrane microplate and smartphone immunosensing for SARS-CoV-2 neutralizing antibody #MMPMID34391066
  • Wang C; Wu Z; Liu B; Zhang P; Lu J; Li J; Zou P; Li T; Fu Y; Chen R; Zhang L; Fu Q; Li C
  • Biosens Bioelectron 2021[Nov]; 192 (ä): 113550 PMID34391066show ga
  • The level of neutralizing antibody (NAb) to SARS-CoV-2 could be used to evaluate the acquired protective immunity of COVID-19 patients or vaccinees. Here we develop a track-etched microporous membrane filtration microplate (TEM) and optical fibers transmitted immunosensing smartphone platform (TEMFIS) based surrogate virus neutralization test (TEMFIS-sVNT) for rapid one-step testing of NAb to SARS-CoV-2. Coefficient variation (CV) of intra-assay and inter-assay precisions of TEMFIS-sVNT varied below 9% or 14%, respectively. By agreement with pseudovirus neutralization test (pVNT) and ELISA-sVNT for testing of serum samples from 41 COVID-19 patients, 50 COVID-19 vaccinees and 320 healthy blood donors (P = 0.895), TEMFIS-sVNT detected the NAb positivity (sensitivity) in 92.68% COVID-19 patients and 76% vaccinees, but the NAb negativity (specificity) in 100% blood donors. In conclusion, TEMFIS-sVNT can be used for quantitatively point-of-care testing of neutralizing antibody to SARS-CoV-2 in blood samples from COVID-19 patients and vaccinees.
  • |*Biosensing Techniques[MESH]
  • |*COVID-19[MESH]
  • |Antibodies, Neutralizing[MESH]
  • |Antibodies, Viral[MESH]
  • |Humans[MESH]
  • |SARS-CoV-2[MESH]


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