| abstract |
A hollow sphere from amphiphilic chitosan derivatives and a method of preparing an amphiphilic chitosan derivative complex for medical use are disclosed, and the hollow sphere from amphiphilic chitosan derivatives comprises: chitosan derivatives represented by the following formula (I), which self-assemble and form a hollow sphere in a solvent; n n n n n n n n n n wherein, each R 1 is independently hydrogen, C 1 ˜C 4 alkyl, C 1 ˜C 6 carboxyl, sulfate group, or phosphate group, each R 2 is independently hydrogen, C 1 ˜C 12 alkyl, C 1 ˜C 6 carboxyl, or C 2 ˜C 12 acyl group, and m is an integer of 100-2000. |