Jump to main content
Jump to site search

Issue 33, 2017
Previous Article Next Article

Programming shape and tailoring transport: advancing hygromorphic bilayers with aligned nanofibers

Author affiliations

Abstract

Natural systems utilize nanofiber architectures to guide water transport, tune mechanical properties, and actuate in response to their environment. In order to harness these properties, a hygromorphic bilayer composite comprised of a self-assembled fiber network and an aligned electrospun fiber network was fabricated. Molecular gel self-assembly was utilized to increase hydrophobicity and strength in one layer, while aligned electrospun poly(vinyl alcohol) (PVA) nanofibers increased the rate of hydration and facilitated tunable actuation in the other. Interfacing these two fiber networks in a poly(ethylene oxide-co-epichlorohydrin) (EO–EPI) matrix led to hydration-driven actuation with tunable curvature. Specifically, variations in fiber alignment were achieved by cutting at 0, 90, and 45 degree angles in relation to the length edge of the composite. Along with the ability to program the natural curvature, the utilization of aligned nanofibers increased water transport compared to random nanofiber systems, resulting in a reduction in response time from 20+ minutes to 2–3 minutes.

Graphical abstract: Programming shape and tailoring transport: advancing hygromorphic bilayers with aligned nanofibers

Back to tab navigation

Supplementary files

Publication details

The article was received on 14 May 2017, accepted on 09 Jul 2017 and first published on 21 Jul 2017


Article type: Paper
DOI: 10.1039/C7SM00962C
Citation: Soft Matter, 2017,13, 5589-5596
  •   Request permissions

    Programming shape and tailoring transport: advancing hygromorphic bilayers with aligned nanofibers

    S. L. M. Alexander, S. Ahmadmehrabi and L. T. J. Korley, Soft Matter, 2017, 13, 5589
    DOI: 10.1039/C7SM00962C

Search articles by author

Spotlight

Advertisements