Fig. 2From: More natural more better: triple natural anti-oxidant puerarin/ferulic acid/polydopamine incorporated hydrogel for wound healingDiameters of NPs and morphology of hydrogels. Dynamic light scattering of PDA NPs, PDA/PUE NPs, PDA/FA NPs, and PDA/PUE/FA NPs (A). Images of the prepared hydrogels (B, upper lane, Scale bar is 1Â cm). Scanning electron microscopy images of the hydrogels (B; lower lane)Back to article page