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April 28, 2026ACS Applied Materials & Interfaces

Synergistic Strategy of the Freeze–Thaw Process with Prestretching and Metal Ion Cross-Linking to Access Biotissue-Inspired Mechanically Robust Hydrogels with Anisotropic Hierarchy

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Authors

SPSangita PanditAGAshis GhoshSKS Rajesh Kumar

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Overview

Randomized trial explores the mechanical properties of anisotropic hydrogels, highlighting bioinspired applications.

Key Points

  • The central aim is to develop hydrogels that mimic the mechanical properties of biological tissues through innovative fabrication techniques.
  • Fabrication of poly(vinyl alcohol)/poly(acrylamide-co-maleic acid) hydrogels using prestretching and freeze-thaw strategies.
  • Stabilization of the hydrogel network using Fe3+ ion cross-links to enhance mechanical strength and conductivity.
  • Evaluation of mechanical properties, conductivity, stress-strain behaviors, and sensor performance under varying conditions.
  • Achieved 27-fold higher tensile strength (∼9 MPa) and 10-fold higher stiffness (∼1.8 MPa) compared to isotropic hydrogels.
  • Demonstrated ∼7 times higher conductivity, enhancing sensing capabilities in the prestretching direction.
  • Developed a flexible supercapacitor electrolyte with 154 Fg-1 specific capacitance and improved energy density of 7.7 Wh kg-1 compared to isotropic counterparts.

Cite This Study

Pandit et al. (2026) studied this question.

synapsesocial.com/papers/69f04e08727298f751e720fbhttps://doi.org/10.1021/acsami.6c02669
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