Fig. 10From: Characterization of polyvinyl alcohol-borax/agarose (PVA-B/AG) double network hydrogel utilized for the cleaning of works of artIllustration of the healing mechanism of PVA-B hydrogel. b Healed 3% PVA-B hydrogel. c Healed 3%/1% PVA-B/AG DN hydrogel. The hydrogels were dyed for better visibilityBack to article page