Cy3 IRGD-PEG-DSPE is a PEG phospholipid with Cy3 dye used in protein/nucelic acid labeling and fluorescence microscopy. Cy3 IRGD-PEG-DSPE can self-assemble in aqueous solution to form micelles/lipid bilayer and used to prepare liposomes or nanoparticles for nutrients delivery such as mRNA or DNA vaccine.