Figure 25.

Construction of several pH-responsive DNA–polymer dynamic nanostructures. (A) Conceptual schematic illustrations of a pH-responsive PIC micelle formation.⁹⁴ Adapted with permission from ref (94). Copyright 2003 American Chemical Society. (B) Construction of a new delivery system that is pH-sensitive and can target antisense ODN.⁹³ Reproduced with permission from ref (93). Copyright 2003 American Chemical Society. (C) Construction of polyelectrolyte complex micelles by the self-assembly of ODN–PEG conjugates and peptide KALA.²⁰⁷ Reproduced with permission from ref (207). Copyright 2012 the Royal Society of Chemistry. (D) Reversible shape transformation of the pH-responsive DNA-b-PPO copolymer micelles.⁹⁵ Adapted with permission from ref (95). Copyright 2005 John Wiley and Sons.