Figure 4.

(A) Structures of H1, G11 and G12. (B) ¹H NMR spectra: (a) G11; (b) H1 and G11; (c) after addition of 2 µL of aqueous DCl solution (35 wt%) to (b); (d) after addition of 3.5 µL of aqueous NaOD solution (30 wt%) to (c); (e) H1 (1.00 mM) (Red boxes, ¹H NMR spectra change of H1 before and after addition of DCl and NAOD). (C) Self-assembling behaviors of H1⸧G12 (i) DLS data of H1⸧G12 aggregates; TEM images: (ii) H1⸧G12 aggregates; (iii) H1⸧G12 aggregates after the solution pH was adjusted to 4.0; (iv) illustration of the formation of the aggregates and the process of pH-responsive release of pyrene molecules. Reproduced from ref. [77] with permission from the Royal Society of Chemistry.