Fig. 6. Non-PE PEGylated lipids applied in the post-insertion method: mPEG2k-tz-Glu(C₁₆)₂, N-(methylpolyoxyethylene oxyethyl)-2-hexadecylcarbamoylmethyl hexadecanoic amide (mPEG-HDAS), and mPEG-Cer-Cx. N – number of oxyethylene –CH₂CH₂O– units, x – number of homologous –CH₂– groups.