Novel asymmetrical bicipital lipid and tubular aggregate formed by using the same

摘要

The present invention offers a novel asymmetric double-headed lipid capable of forming a stable, nanometer scale micro-tubular aggregated material of containing a sugar and a carboxylic acid at each end. The present invention is an asymmetric double-headed lipid represented by the general formula R-NHCO-(CH2)n-COOH (I) (in the formula, R represents an aldopyranose radical from which the terminal reducing hydroxyl group is excluded and n is from six to twenty) and a hollow micro-tubular aggregated material formed from the asymmetric double-headed lipid. The external diameter of the micro-tubular aggregated material is 10-300 nm, and the length is 0.3-10 mum. The micro-tubular aggregated material can be manufactured by dispersing the asymmetric double-headed lipid described above in water at pH of two to eight, next heating to 80-100° C. to dissolve it and then gradually cooling the aqueous solution obtained.