Patent ID: 8022044

Claim:
A method of administering a therapeutic agent to a cell, comprising administering to the cell a therapeutically effective amount of the therapeutic agent formulated in a buffer comprising a compound of Formula I: wherein: n is an integer from 2-8; X 1 is a cholic acid group or deoxycholic acid group; and X 2 and X 3 are each independently selected from the group consisting of a cholic acid group, a deoxycholic acid group, and a saccharide group, wherein the saccharide group is selected from the group consisting of pentose-pentose disaccharide groups, hexose-hexose disaccharide groups, pentose-hexose disaccharide groups, and hexose-pentose disaccharide groups; and wherein at least one of X 2 and X 3 is a saccharide group, wherein each cholic acid group is of the formula: and each deoxycholic acid group is of the formula: