The pod is made of polyvinyl alcohol film, which is soluble in water. (newscientist.com)
Instead of gravel, Li uses polyvinyl alcohol fibers and extremely fine (100 micrometers in diameter) silica sand. (discovermagazine.com)
The chitosan and polyvinyl alcohol composite hydrogel containing hTGFβ - 1 gene modified BMSCs was injected into rabbits with defective articular cartilage. (sciencedaily.com)