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(a) Schematics of pH-modulation of fluorescence emission changes of PMAA-b-P(PEGMA-co-BODIPY) and its self-assembled multifunctional micelles. (b) Illustration of pH-sensitive drug-loaded micelles based on the PMAA-b-P(PEGMA-co-BODIPY) block copolymer for the intracellular release of DOX triggered by the acidic microenvironment. Reproduced with permission from Ref. [54]. Copyright 2015 Royal Society of Chemistry.
