Patent ID: 7713942

Claim:
A complex comprising (i) a sterol selected from the group consisting of cholesterols, lanosterols, lumisterols, stigmasterols, sitosterols, mycosterols, ergosterols, and thiocholesterols, (ii) a sterol selected from the group consisting of 3β-[N-(Dimethylaminoethane)-carbamoyl]cholesterol (DC-cholesterol), N-(trimethylammonioethane)-carbamoylcholesterol (TC-cholesterol), and a combination thereof, wherein said sterols form a complex with a saponin; and (iii) a saponin comprising a triterpene glycoside isolated from a Quillaja plant species, wherein the saponin forms a complex with said sterols; and wherein the complex adopts a micro-particle structure in the form of a cage-like matrix.