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Representative TEM images obtained before (left) and after (right) addition of NaOH to a 10 % w/w aqueous dispersion of HOOC–PGMA43–PHPMA200 diblock copolymer nanoparticles, followed by dilution. Photographs of the two dispersions indicate their differing physical forms: free-flowing turbid vesicular dispersion (left) and free-standing gel composed of copolymer worms (right).
