Ion-linked double-network hydrogel with high toughness and stiffness Academic Article

abstract

• 2015, Springer Science+Business Media New York. In this paper, a facile one-pot method was developed to fabricate ion cross-linked calcium-alginate/poly(acrylamide) (PAAm) double-network hydrogels with excellent toughness and stiffness. In comparison to the sodium alginate/PAAm hybrid gel, the as-fabricated calcium-alginate/PAAm gel demonstrated superior mechanical properties. After soaking in calcium chloride (CaCl2) solution, the size of the as-synthesized hybrid gel can be well controlled without observable volumetric swelling through manipulating the equilibrium between shrinkable elastic energy from ionic (Ca²⁺) bonds and swelling osmotic energy. This material design and processing technology are promising to fabricate complicated-shaped cartilage with high geometric fidelity. After soaking in 8wt% CaCl2 solution for 2h, compressive strength of calcium-alginate/PAAm gel was significantly improved by 92% compared to PAAm single network hydrogel, meanwhile the size and shape of calcium-alginate/PAAm gel were nearly changed and deformed, respectively.

authors

• Qiu, Jingjing
• Wang, Shiren

published proceedings

• JOURNAL OF MATERIALS SCIENCE

altmetric score

• 3

author list (cited authors)

• Wang, J., Wei, J., Su, S., Qiu, J., & Wang, S.

citation count

• 58

complete list of authors

• Wang, Jilong||Wei, Junhua||Su, Siheng||Qiu, Jingjing||Wang, Shiren

publication date

• August 2015

publisher

• Springer Nature  Publisher

published in

• Journal of Materials Science  Journal

keywords

• 40 Engineering
• 4003 Biomedical Engineering
• 4016 Materials Engineering
• Bioengineering

Digital Object Identifier (DOI)

• 10.1007/s10853-015-9091-0

start page

• 5458

end page

• 5465

volume

• 50

issue

• 16

URL

• http://dx.doi.org/10.1007/s10853-015-9091-0