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In situ mechanical reinforcement of polymer hydrogels via metal-coordinated crosslink mineralization

Author

Listed:
  • Sungjin Kim

    (Massachusetts Institute of Technology)

  • Abigail U. Regitsky

    (Massachusetts Institute of Technology)

  • Jake Song

    (Massachusetts Institute of Technology)

  • Jan Ilavsky

    (Advanced Photon Source, Argonne National Laboratory)

  • Gareth H. McKinley

    (Massachusetts Institute of Technology)

  • Niels Holten-Andersen

    (Massachusetts Institute of Technology)

Abstract

Biological organic-inorganic materials remain a popular source of inspiration for bioinspired materials design and engineering. Inspired by the self-assembling metal-reinforced mussel holdfast threads, we tested if metal-coordinate polymer networks can be utilized as simple composite scaffolds for direct in situ crosslink mineralization. Starting with aqueous solutions of polymers end-functionalized with metal-coordinating ligands of catechol or histidine, here we show that inter-molecular metal-ion coordination complexes can serve as mineral nucleation sites, whereby significant mechanical reinforcement is achieved upon nanoscale particle growth directly at the metal-coordinate network crosslink sites.

Suggested Citation

  • Sungjin Kim & Abigail U. Regitsky & Jake Song & Jan Ilavsky & Gareth H. McKinley & Niels Holten-Andersen, 2021. "In situ mechanical reinforcement of polymer hydrogels via metal-coordinated crosslink mineralization," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-20953-7
    DOI: 10.1038/s41467-021-20953-7
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    Cited by:

    1. Jorge Ayarza & Jun Wang & Hojin Kim & Pin-Ruei Huang & Britteny Cassaidy & Gangbin Yan & Chong Liu & Heinrich M. Jaeger & Stuart J. Rowan & Aaron P. Esser-Kahn, 2023. "Bioinspired mechanical mineralization of organogels," Nature Communications, Nature, vol. 14(1), pages 1-7, December.

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