Issue 11, 2012

Magnetic field-induced alignment of nanoparticles in electrospun microfibers

Abstract

We report on the facile and switchable alignment of superparamagnetic iron oxide nanoparticles measuring ∼18 nm in diameter in electrospun microfibers. Application of a magnetic field perpendicular to the electric field employed during electrospinning yields polymeric microfibers with nanoparticles aligned in one-dimensional arrays, thereby providing control over when and where the nanoparticles align. According to electron microscopy, the length over which alignment is desired can be judiciously selected, thereby making these nanomaterials excellent candidates for nanotechnologies requiring nanoscale alignment on-demand. Concurrent alignment of the electrospun fibers using established procedures provides a viable route to organic/inorganic materials possessing anisotropic properties that reflect multiscale alignment.

Graphical abstract: Magnetic field-induced alignment of nanoparticles in electrospun microfibers

Supplementary files

Article information

Article type
Communication
Submitted
15 Mar 2012
Accepted
19 Mar 2012
First published
16 Apr 2012

RSC Adv., 2012,2, 4603-4607

Magnetic field-induced alignment of nanoparticles in electrospun microfibers

K. E. Roskov, J. E. Atkinson, L. M. Bronstein and R. J. Spontak, RSC Adv., 2012, 2, 4603 DOI: 10.1039/C2RA20489D

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