Fig. 1From: Attachment of class B CpG ODN onto DOTAP/DC-chol liposome in nasal vaccine formulations augments antigen-specific immune responses in miceAgarose gel retardation assay of the prepared CpG ODN-loaded DOTAP/DC-chol liposomes with various N/P ratios. The prepared CpG ODN-loaded DOTAP/DC-chol liposomes were loaded onto a 2% agarose gel and then ODN bands were visualized by staining with GelRed Nucleic Acid Gel StainBack to article page