Muppavarapu Anusha, Bijapuri Srivastava, Seelam Shyam and Prudhvi Raj V (2022) “A Review on Hydrogel: Preparation, Characterization, and Applications”, Future Journal of Pharmaceuticals and Health Sciences, 2(3), pp. 139–149. doi: 10.26452/fjphs.v2i3.273.