Hydrogels formed from hyaluronic acid, a nanoclay and gelatin-type A. The hyaluronic acid is preferably dissolved in a cell culture medium containing amino acids, salts, glucose, vitamins and an antibiotic to form a hyaluronic acid solution. The gelatin-type A has a weight/volume of from about 0.02% to 0.08%. The nanoclay is exfoliated in deionized water and preferably includes SiO2, MgO, Na2O and Li2O.