Fig. 3
The fluorescent spectra of mPEG-ss-Tripp in DMSO/water mixtures with different fractions of water (fw), insert image showing fluorescence of mPEG-ss-Tripp solutions dissolved in pure DMSO and 99% water (a); plot of fluorescent intensity of mPEG-ss-Tripp versus water content of DMSO/water mixture, I = fluorescent intensity of mPEG-ss-Tripp in mixed solution, I0 = fluorescent intensity of mPEG-ss-Tripp in pure DMSO (λex = 330 nm) (b); the release profiles of DOX-loaded micelles triggered with or without GSH at pH 7.4 and pH 5.5, means ± SD (n = 3) (c)