“…Giant vesicles consisting of an amphiphilic poly (methacrylic acid)-block-poly (methyl methacrylate-randommethacrylic acid) diblock copolymer, PMAA-b-P(MMA-r-MAA), are an artificial model of the biomembrane for cells and organelles based on the similarities in their structure [15], stimuli-responsive behavior [16,17], and membrane permeability [18]. Various morphologies have been found for the diblock copolymer depending on the block length [19,20], types of the monomer units [21][22][23], insertion of the segment copolymer [24], and conditions of the vesicle preparation [25] by the polymerization-induced selfassembly using the nitroxide-mediated photo controlled/living radical polymerization (photo NMP) technique [26]. The morphologies include spherical vesicles [15], the elliptical [25], worm-like [19,20,27], cup-like [27], key-shaped [19], villus-like [28], and anastomosed tubular networks continuing with a fenestrated sheet [17].…”