Fig. 3: Biomechanical performances of SPVA, AA-SPVA, and HAA-SPVA hydrogels.
From: Robust super-structured porous hydrogel enables bioadaptive repair of dynamic soft tissue
a Tensile stress-strain curves of SPVA, AA-SPVA, and HAA-SPVA hydrogels. b, c Ashby diagrams of elastic modulus versus tensile strength (b) and elastic modulus versus toughness (c) of HAA-SPVA hydrogel, reported strong and tough hydrogels, and human dynamic soft tissues. d Crack growth rate (dc/dN) and the calculated energy release rate of SPVA, AA-SPVA, and HAA-SPVA hydrogels soaked in PBS for 0 and 14 days. The fatigue threshold is the critical energy release rate. e Comparison of SPVA, AA-SPVA, and HAA-SPVA hydrogels with the reported anti-fatigue hydrogels in terms of fatigue threshold. f Comparison of elastic modulus, fracture strain, tensile strength, and fatigue threshold between dynamic soft tissues and HAA-SPVA hydrogel soaked for 0 and 14 days. g Tensile stress-strain curves of HAA-SPVA hydrogel on the 0, 1st, 14th, and 30th days after soaking in PBS. h Photos of HAA-SPVA hydrogel soaked for 0 and 14 days with same cross-section and initial length lifting a 2 kg weight.
