Ultrasound-and Photo-dually Controlled Supermolecular Self-assembly and Programmed Drug Delivery Based on an AB_2-type Host-guest-conjugated Amphiphilic Molecule
An AB_2-type host-guest-conjugated amphiphilic molecule(Azo-CD_2) composed of one azobenzene(Azo) and two b-cyclodextrin(b-CD) units was first synthesized through the click reaction of Azo-(N_3)_2intermediate containing two azide groups and mono-6-deoxy-6-alkyne b-CD(b-CD-C≡CH) with one alkynyl group. The molecular structure of Azo-CD_2 was confirmed by 1H and 13 C nuclear magnetic resonances and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. The morphology transitions of Azo-...