Self-assembly results of anionic micelle 5 (a and b) and cationic micelle 6 (c and d) in MOPS buffer at pH 7.4 and acetate buffer at pH 5.0, respectively. (a) TEM image of 5: Dav = 18 ± 3 nm, after counting more than 150 nanoparticles. (b) DLS results of 5: Dh(intensity) = 41 ± 14 nm, Dh(volume) = 31 ± 10 nm and Dh(number) = 25 ± 6 nm. (c) TEM image of 6: Dav = 16 ± 2 nm, after counting more than 150 nanoparticles. (d) DLS results of 6: Dh(intensity) = 125 ± 129 nm, Dh(volume) = 24 ± 15 nm and Dh(number) = 16 ± 5 nm.