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Journal of Nanotechnology
Volume 2012, Article ID 138438, 5 pages
Research Article

Electrospun Polyvinylpyrrolidone-Based Nanocomposite Fibers Containing (Ni𝟎.𝟔Zn𝟎.𝟒)Fe𝟐O𝟒

1Department of Mechanical Engineering, Wichita State University, Wichita, KS 67260, USA
2Institute of Physics, Academia Sinica, Taipei 115, Taiwan
3Department of Physics, Wichita State University, Wichita, KS 67260, USA

Received 9 March 2012; Accepted 10 April 2012

Academic Editor: Charles M. Lukehart

Copyright © 2012 W. S. Khan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Polyvinylpyrrolidone-based nanocomposite fibers containing (Ni0.6Zn0.4)Fe2O4 have been successfully fabricated by an electrospinning technique. Magnetic measurements were made, individually, on polyvinylpyrrolidone, the ferrite nanoparticles, and several fibrous nanocomposites. The polymer exhibits a diamagnetic susceptibility comparable to the estimated value from Pascal’s constants. The nanocomposites maintain intrinsic properties of pure (Ni0.6Zn0.4)Fe2O4, with a weighted magnitude according to its concentration in a given fiber. Meanwhile, superparamagnetism prevails with a relatively low blocking temperature, assuring no aggregation of the fine particles. Such electrospun materials are flexible and have large surface area per unit mass, thus suitable for certain applications in environmental and biomedical engineering.