Cholesterol (5-cholesten-3ß-ol, henceforth called
CHOL, Scheme S2b) and its cationic derivative DC-Chol (3ß-
[N-(N9,N9-dimethylaminoethane)-carbamoyl]cholesterol, Scheme
S2c) were also part of the liposome formulations, to improve the
affinity toward raft domains in cell membranes and facilitate
delivery