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10.1038/s41467-021-23185-x

http://scihub22266oqcxt.onion/10.1038/s41467-021-23185-x
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34006857!8131735!34006857
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suck abstract from ncbi


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pmid34006857      Nat+Commun 2021 ; 12 (1): 2905
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  • A rapid, accurate, scalable, and portable testing system for COVID-19 diagnosis #MMPMID34006857
  • Xun G; Lane ST; Petrov VA; Pepa BE; Zhao H
  • Nat Commun 2021[May]; 12 (1): 2905 PMID34006857show ga
  • The need for rapid, accurate, and scalable testing systems for COVID-19 diagnosis is clear and urgent. Here, we report a rapid Scalable and Portable Testing (SPOT) system consisting of a rapid, highly sensitive, and accurate assay and a battery-powered portable device for COVID-19 diagnosis. The SPOT assay comprises a one-pot reverse transcriptase-loop-mediated isothermal amplification (RT-LAMP) followed by PfAgo-based target sequence detection. It is capable of detecting the N gene and E gene in a multiplexed reaction with the limit of detection (LoD) of 0.44 copies/muL and 1.09 copies/muL, respectively, in SARS-CoV-2 virus-spiked saliva samples within 30 min. Moreover, the SPOT system is used to analyze 104 clinical saliva samples and identified 28/30 (93.3% sensitivity) SARS-CoV-2 positive samples (100% sensitivity if LoD is considered) and 73/74 (98.6% specificity) SARS-CoV-2 negative samples. This combination of speed, accuracy, sensitivity, and portability will enable high-volume, low-cost access to areas in need of urgent COVID-19 testing capabilities.
  • |*COVID-19 Nucleic Acid Testing/instrumentation[MESH]
  • |*Point-of-Care Systems[MESH]
  • |COVID-19/*diagnosis[MESH]
  • |Equipment Design[MESH]
  • |Genes, Viral/genetics[MESH]
  • |Humans[MESH]
  • |Limit of Detection[MESH]
  • |Molecular Diagnostic Techniques[MESH]
  • |Nucleic Acid Amplification Techniques[MESH]
  • |RNA, Viral/genetics[MESH]
  • |SARS-CoV-2/genetics/*isolation & purification[MESH]
  • |Saliva/virology[MESH]


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