Nanovesicles containing PEG on the surface has been shown to extend blood-circulation time while reducing mononuclear phagocyte system uptake (stealh nanovesicles). You can order the following PEGylated nanovesicles: Pronanosome Lipo-N-PEG, Pronanosome Nio-N-PEG, Pronanosome Lipo-cat-PEG, Pronanosome Nio-cat-PEG, Pronanosome THERMO-PEG, Pronanosome pH-PEG, Pronanosome Fluorescent series-PEG and/or Pronanosome Bioconjugable series -PEG. From other different combinations, contact us!