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Fig. 1 | Virology Journal

Fig. 1

From: Intranasal delivery of plasmids expressing bovine herpesvirus 1 gB/gC/gD proteins by polyethyleneimine magnetic beads activates long-term immune responses in mice

Fig. 1

Particle size of PEI magnetic beads adsorbed with DNA and PEG600. a The PEI magnetic beads are captured by transmission electron microscopy (TEM). b The PEI magnetic beads and DNA form polymers through positive and negative charge attraction. c The size of PEI magnetic beads, DNA, and PEG600 agglomerate is further increased. Scale bars indicate 200 nm (a–c)

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Virology Journal

ISSN: 1743-422X