Fig. 2: Structural and mechanical characterization for the single-composition polyelectrolyte hydrogel microfibers of evolving macromolecule conformations.
a AFM images of hydrogel microfibers of different pH. b POM images of microfibers of different pH, and pH 9.14 microfiber at 800% strain. c Schematic illustration of the response of different macromolecule network architectures to the mechanical loading. d Strain-stress curves of the hydrogel microfibers. e Mechanical resilience and strain recovery of the microfibers under a 200% strain cycle.
