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Amplitude (G′ and G″ as a function of shear stress, τ) and frequency sweep (G′ and G″ as a function of frequency) test made on alginate emulsion ((A) and (C), respectively) and on crosslinked hydrogel ((B) and (D), respectively). Complex viscosity, η*, is reported on right axes of panels (C) (for alginate emulsion) and (D) (for cross-linked hydrogel).
