Figure 3.

(a) Nanoparticles assembled by amphiphilic host-guest pairs in the “FRET-on” state responsive to the ferrocene reduction by ambient H₂O₂; (b) Confocal fluorescence images of HeLa and L929 cells with (i) L929 cells treated with 5 µm FITC-β-CD/Fc-RB; (ii) L929 cells incubated with 50 µm H₂O₂ and 5 µm FITC-β-CD/Fc-RB for 4 h and (iii) HeLa cells incubated with 5 µm FITC-β-CD/Fc-RB for 1 h at 37 °C [57]. Reprinted with permission from [57]. Copyright 2015 Wiley.