Fig. 4. Turbidity evolution (A) and particle size (B) of nanogel (EDMA or DSDMA) solutions (1g L⁻¹) in 100 mM Tris–HCl buffer pH 8 with or without DTT (40 mM), measured by UV-Vis spectroscopy at 600 nm and DLS, respectively. Specific viscosity of DSDMA cross-linked nanogel in 100 mM Tris–HCl buffer pH 8 with (full circles) or without DTT (open circles) (C). SEC-RI chromatogram of DSDMA-based nanogels before and after incubation with different concentrations of DTT in Tris–HCl buffer 100 mM (D).