phospholipids such as egg phosphatidylcholine , phosphatidylserine , synthetic dipalmitoyl-dl-alpha-phosphatidylcholine or phosphatidylinositol , have been used in conjunction with cholesterol and positively or negatively charged amphiphiles such as stearylamine or phosphatidic acid .
C1959616
phosphatidylcholine
C0000039
dipalmitoyl