Sadeghi, M., & Hosseinzadeh, H. (2010). Swelling Behaviour of a Novel Protein-Based Super Absorbent Hydrogel Composed of Poly(methacrylic Acid) and Collagen. Asian Journal of Chemistry, 22(9), 6734–6746. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/11906