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Hydrogel formation kinetics and viscoelasticity exhibited by a series of 2% (w/v) 10% ox-alg samples prepared with different cross-linkers (equimolar). (a) Time sweep using the three different cross-linkers; aminooxy, semicarbazide, and hydrazide for evaluating hydrogels formation kinetics measured at 1% strain and 10 rad/s. (b) Frequency sweep for the same three hydrogels measured at 1% strain.
