a series of spin-labeled phosphatidylcholines ( pcs ) and cholesteryl esters ( ces ) bearing the paramagnetic 2,2-dimethyloxazolidinyl-1-oxy ( doxyl ) group at fatty acyl carbon c5 ' , c12 ' , or c16 ' were used to study acyl chain motions in the polar surface shell and hydrophobic core domains of microemulsion ( me ) particles containing cholesteryl oleate and dimyristoylphosphatidylcholine ( dmpc ) , and of particles with apolipoprotein e ( apoe ) bound to their surfaces .
C1959616
phosphatidylcholines
C0012456
dimyristoylphosphatidylcholine