To study viscoelastic properties of different hydrogel formulations (r1-r4), dynamic oscillatory amplitude sweeps were performed using an 8 mm parallel plate stainless steel geometry with a constant axial load of 100 mN, at a frequency of 1 Hz and strain was swept from 0.1 to 100 %. Hydrogel discs were demolded after curing overnight at room temperature in a humid atmosphere and then incubated in PBS for three days to reach their equilibrium swelling. Storage moduli (G′), loss moduli (G″), and loss tangent (tanδ) were calculated. All measurements were performed at 25 °C.