Keywords: CPP; cell penetrating peptide; GUV; giant unilamellar vesicle; LUV; large unilamellar vesicle; PC; l-α-phosphatidylcholine; PE; l-α-phosphatidylethanolamine; PMS; plasma membrane sphere; PS; l-α-glycerophosphatidyl-l-serine; Py-met-chol; pyrene-labelle