Cucurbituril-containing gel and method of preparing the same

A gel comprising a compound represented by Formula 1 below;

• and at least one compound selected from the group consisting of a pharmacologically active substance and a stimulus-responsive compound comprising an azobenzene group or a stilbene group:
• wherein n is an integer of 4 to 20;
• X is O, S, or NH;
• and
• A1 and A2 are each independently H, OR, SR, or NHR where R is selected from the group consisting of H, substituted or unsubstituted C1-C30 alkyl, substituted or unsubstituted C2-C30 alkenyl, substituted or unsubstituted C2-C30 alkynyl, substituted or unsubstituted C2-C30 carbonylalkyl, substituted or unsubstituted C1-C30 thioalkyl, substituted or unsubstituted C1-C30 alkylthiol, substituted or unsubstituted C1-C30 hydroxyalkyl, substituted or unsubstituted C1-C30 alkylsilyl, substituted or unsubstituted C1-C30 aminoalkyl, substituted or unsubstituted C1-C30 aminoalkylthioalkyl, substituted or unsubstituted C5-C30 cycloalkyl, substituted or unsubstituted C2-C30 heterocycloalkyl, substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted C6-C20 arylalkyl, substituted or unsubstituted C4-C30 heteroaryl, and substituted or unsubstituted C4-C30 heteroarylalkyl.