Fig. 1: Schematic, fabrication and characterization of BLG AF–Fe membranes.
From: An antiviral trap made of protein nanofibrils and iron oxyhydroxide nanoparticles
a, A schematic showing the filtration set-up. b, A schematic showing the fabrication processes of the BLG AF–Fe membranes. c, Cryo-SEM micrographs of freeze-fractured and freeze-etched hydrated BLG AF–Fe hybrids at two magnifications. d, Cryo-TEM image of the BLG AF–Fe hybrids; the BLG AF–Fe hybrids were prepared using a fivefold lower Fe concentration (10 mgFe ml−1) than the concentration normally used to prepare the membranes to enable the visualization of single Fe NPs. e, SEM micrographs of a chemically fixed and critical point-dried sample of the filter bulk material at two magnifications. Representations of the virions in a are reproduced from pictures on ViralZone51. The cartoon structure of the BLG monomers in b is based on the crystallographic structures 5IO552 obtained from the Protein Data Bank53 (http://www.rcsb.org/, accessed October 2020).
