Fig. 5From: Characterization of polyvinyl alcohol-borax/agarose (PVA-B/AG) double network hydrogel utilized for the cleaning of works of artSEM micrographs (10,000×) showing the microstructure of the hydrogels. a 3% PVA-B, b 3%/1% PVA-B/AG DN, and c 4% PVA-BBack to article page