Jump to main content
Jump to site search

Issue 42, 2015
Previous Article Next Article

Exceptionally tough and notch-insensitive magnetic hydrogels

Author affiliations

Abstract

Most existing magnetic hydrogels are weak and brittle. The development of strong and tough magnetic hydrogels would extend their applications into uncultivated areas, such as in actuators for soft machines and guided catheters for magnetic navigation systems, which is still a big challenge. Here a facile and versatile approach to fabricating highly stretchable, exceptionally tough and notch-insensitive magnetic hydrogels, Fe3O4@Fe-alginate/polyacrylamide (PAAm), is developed, by dispersing alginate-coated Fe3O4 nanoparticles into the interpenetrating polymer networks of alginate and PAAm, with hybrid physical and chemical crosslinks. A cantilever bending beam actuator as well as a proof-of-concept magnetically guided hydrogel catheter is demonstrated. The method proposed in this work can be integrated into other strong and tough magnetic hydrogels for the development of novel hydrogel nanocomposites with both desirable functionality and superior mechanical properties.

Graphical abstract: Exceptionally tough and notch-insensitive magnetic hydrogels

Back to tab navigation

Supplementary files

Article information


Submitted
16 Jun 2015
Accepted
27 Aug 2015
First published
27 Aug 2015

Soft Matter, 2015,11, 8253-8261
Article type
Paper

Exceptionally tough and notch-insensitive magnetic hydrogels

H. Haider, C. H. Yang, W. J. Zheng, J. H. Yang, M. X. Wang, S. Yang, M. Zrínyi, Y. Osada, Z. Suo, Q. Zhang, J. Zhou and Y. M. Chen, Soft Matter, 2015, 11, 8253
DOI: 10.1039/C5SM01487E

Social activity

Search articles by author

Spotlight

Advertisements