Liposome was prepared following
refs 18 and 19 with certain modifications. AAPH and AMVNwere used as
radical initiators in the aqueous and lipid phase, respectively. Briefly,
soybean PC (0.75mM) and/or β-Car (7.5 μM) in chloroformwasmixed
with methanol. AMVN (32 mM) in methanol was added when needed,
and the volume ratio of chloroform and methanol was 2:1. Solvents were
removed under reduced pressure (0.01 MPa) with protection by highpurity
nitrogen by using a rotary evaporator at a bath temperature
of