Extended Data Fig. 1: Screening of nanomaterials for potential inhibition of SARS-CoV-2 infection.

a) TEM images of the examined NMs. Scale bar = 50ânm. b) The effect of NMs on the infection rate (red) and cell viability (black) of ACE2/293âT cells infected with SC2-P. LUC-containing SC2-P pre-incubated with different NMs was used for infecting ACE2/293âT cells. Infection was evaluated on cell lysates as SC2-P dependent luciferase activity after 40âh, while the percentage of metabolically active viable cells was evaluated with the CCK8 assay after exposure to NM for 48âh. Results are presented as meanâÂħâSEM of nâ=â3-5 biological replicates. Statistical significance was calculated by one-way ANOVA with Tukeyâs multiple comparisons test.