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PIC micelles sensitive to reductive conditions. Change in the relative scattering light intensity of disulfide-crosslinked PIC complex micelles after the addition of dithiothreitol (DTT) (○, 0.5 mM; ▵, 1.0 mM; □, 2.0 mM) in 10 mM PBS at pH 7.4. (Reprinted with permission from [30] © 1999 American Chemical Society.)
