Fig. 1.

The effect of polyethylene slides coated with N,N-dodecyl,methyl-PEI challenged with aqueous solutions of various influenza A viruses. See Table 2 for viral strain abbreviations and details (note that “H” and “L” after PR8 stand for high and low titer of the virus, respectively). (A) Virucidal activity of bare (white bars) and polycation-coated polyethylene slides (hatch-marked bars) against various influenza virus strains. (B) Relative quantities of viral nucleoprotein (NP) disappeared from solution after incubation with bare (gray bars) and with polycation-coated polyethylene slides (black bars).