Development and Characterization of a Poly (Vinyl Alcohol)/Graphene Oxide Composite Hydrogel as An Artificial Cartilage Material,Linda Plaisted Multi-disciplinary Artist,Linda Plaisted Multi-disciplinary Artist,Development and Characterization of a Poly (Vinyl Alcohol)/Graphene Oxide Composite Hydrogel as An Artificial Cartilage Material,Linda Plaisted Multi-disciplinary Artist