Jump to main content
Jump to site search

Issue 14, 2018
Previous Article Next Article

Tough high modulus hydrogels derived from carbon-nitride via an ethylene glycol co-solvent route

Author affiliations

Abstract

High concentration formulations of graphitic carbon nitride (g-CN) are utilized as photoinitiator and reinforcer for hydrogels. In order to integrate significant amounts of g-CN, ethylene glycol (EG) is employed as a co-solvent for the gel formation, which enables stable dispersion of up to 4 wt% g-CN. Afterwards, EG can be removed easily via solvent exchange to afford pure hydrogels. The diverse gels possess remarkably high storage moduli (up to 650 kPa for gels and 720 kPa for hydrogels) and compression moduli (up to 9.45 MPa for 4 wt% g-CN EG gel and 3.45 MPa for 4 wt% g-CN hydrogel). Full recovery without energy loss is observed for at least 20 cycles. Moreover, gel formation can be performed in a spatially controlled way utilizing photomasks with desired shapes. Therefore, the suggested method enables formation of hybrid gels by optical lithography with outstanding mechanical properties very similar to natural cartilage and tendon, and opens up opportunities for future applications in photocatalysis, additive manufacturing of biomedical implants and coating materials.

Graphical abstract: Tough high modulus hydrogels derived from carbon-nitride via an ethylene glycol co-solvent route

Back to tab navigation

Supplementary files

Publication details

The article was received on 31 Jan 2018, accepted on 11 Mar 2018 and first published on 13 Mar 2018


Article type: Paper
DOI: 10.1039/C8SM00232K
Citation: Soft Matter, 2018,14, 2655-2664
  • Open access: Creative Commons BY license
  •   Request permissions

    Tough high modulus hydrogels derived from carbon-nitride via an ethylene glycol co-solvent route

    B. Kumru, V. Molinari, M. Shalom, M. Antonietti and B. V. K. J. Schmidt, Soft Matter, 2018, 14, 2655
    DOI: 10.1039/C8SM00232K

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements