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Water‐rich biomimetic composites from aramid nanofibers interlaced with poly(vinyl alcohol) are presented by Nicholas A. Kotov and co‐workers in article number 1703343, which are visualized by electron microscopy. The hydrogen‐bonding interactions among the nanoscale building blocks enable stress‐induced reconfiguration of the network, as well as a set of surprising mechanical behaviors that are similar...
Load‐bearing soft tissues, e.g., cartilage, ligaments, and blood vessels, are made predominantly from water (65–90%) which is essential for nutrient transport to cells. Yet, they display amazing stiffness, toughness, strength, and deformability attributed to the reconfigurable 3D network from stiff collagen nanofibers and flexible proteoglycans. Existing hydrogels and composites partially achieve...
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