Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 39, Issue 1, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201700313
Keywords
CO2-responsiveness; controlled release; multiresponsive vesicles; O-2-responsiveness
Categories
Funding
- China Scholarship Council (CSC) [201306240132, 201406240131, 201406220139]
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A well-defined amphiphilic triblock copolymer, poly[(ethylene glycol)methyl ether]-block-poly(N,N-dimethylamino ethyl methacrylate-co-2,2,2-trifluoroethyl methacrylate)-block-poly(4-(4-methoxy-phenylazo)phenoxy methacrylate) (PEG-b-P(DMAEMA-co-TFEMA)-b-PMEPPMA), is successfully synthesized by stepwise atom transfer radical polymerization. Owing to its amphiphilic nature, PEG-b-P(DMAEMA-co-TFEMA)-b-PMEPPMA can self-assemble into vesicles in aqueous solution and exhibits a reversible triple-responsive behavior toward CO2, O-2, and light stimuli. More importantly, such vesicles can exhibit a controlled breathing behavior via external stimuli due to their suitable chemical structure and stimuli responsiveness. Consequently, these vesicles can be employed as nanocarriers for rate-tunable controlled release via adjustment of their membrane permeability by a single stimulus or various stimuli combinations.
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