Strongly Metal-Adhesive and Self-Healing Gelatin@Polydopamine-Based Hydrogels with Long-Term Antioxidant Activity.

Indeed, after 4 h of contact between PDA gel and an ethanolic DPPH solution, the UV-visible kinetic spectra exhibit an 82% scavenging of DPPH radicals for 1 mL of gel and that of 83% for 2 mL of gel ( Figure 4 a), which is highly significant for the volume ratio considered, versus that of only 4% for gelatin gels without PDA (see Figure S4 in the Supporting Information ).

also in 132,142 other papers