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Variation of complex viscosity (a,b); storage modulus (G′, filled circle) and loss modulus (G″, empty circle) (c,d); for 30% solutions of gelatin hydrogels with temperature. Heating ramp (left column) from 10 to 40°C, cooling ramp (right column) from 40 to 10 °C. M1 ((●) blue color), M2 ((●) green color), Extraction M3 ((●) orange color), and M5 ((●) black color).
