Figure 2: (A) Plots of intensity ratio (I338/I333) of pyrene excitation spectra (λem = 390 nm) vs concentration of different (PEG750)2-PCL miktoarm copolymers in water. (B) Distribution of the hydrodynamic diameter (DH) of Curcumin/(PEG750)2-PCL4700 micelles (deionized water; polymer concentration, 0.5 g/L; &tie, 90°,curcumin content ~ 8 wt.%).