Fig. 1From: Multi-walled carbon nanotubes increase antibody-producing B cells in mice immunized with a tetravalent vaccine candidate for dengue virusTEM of MWCNTs combined or not with plasmid DNA. TEM of MWCNT pure and combined with plasmid DNA. a MWCNT; b DNA-MWCNT; c c-MWCNT; d DNA- c-MWCNT. Scale bars in a indicate 200 nm; in b, c 1 μm and in d 500 nmBack to article page