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. 2021 Mar 15;337:129786. doi: 10.1016/j.snb.2021.129786

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Fig. 3 — Detection of SARS-CoV-2 pseudovirus. (A) T₁s that measured during the reaction procedure between GPG-Ab and pseudovirus. (B) Detection sensitivity for pseudovirus. Error bars indicate SD. *P < 0.05 is determined by Student’s T-test. (C) The linear relationship between T₁ and the logarithm of pseudovirus concentration within the low concentration range. (D) Interference immunity study of GPG-Ab by measuring T₁s at different detecting environments which have the same pseudovirus concentration of 2.7 × 10³ Particles mL^–1 (Ⅰ, in pure sample; Ⅱ, in diluted human saliva; Ⅲ, in tap water; Ⅳ, in sanitary sewage).