| abstract |
A lipid membrane structure contains, as a lipid component, a lipid compound represented by formula (I): (R 1 )(R 2 )C(OH)-(CH 2 ) a -(O-CO) b -X [wherein a represents an integer of 3 to 5; b represents an integer of 0 or 1; R 1 and R 2 independently represent a linear hydrocarbon group that may have -CO-O-; and X represents a 5- to 7-membered non-aromatic heterocyclic group or a group represented by formula (B) (wherein d represents an integer of 0 to 3; and R 3 and R 4 independently represent a C 1-4 alkyl group or a C 2-4 alkenyl group, wherein R 3 and R 4 may be bonded together to form a 5- to 7-membered non-aromatic hetero ring (wherein one or two C 1-4 alkyl groups or C 2-4 alkenyl groups may be present as substituents on the ring))]. |