A biocompatible magnetic film: synthesis and characterization

Jhunu Chatterjee , Yousef Haik and Ching Jen Chen

Center for Nanomagnetics and Biotechnology, Florida State University, Tallahassee, Florida 32310, USA

author email corresponding author email

BioMagnetic Research and Technology 2004, 2:2doi:10.1186/1477-044X-2-2


Published:	4 February 2004

Abstract

Background

Biotechnology applications of magnetic gels include biosensors, targeted drug delivery, artificial muscles and magnetic buckles. These gels are produced by incorporating magnetic materials in the polymer composites.

Methods

A biocompatible magnetic gel film has been synthesized using polyvinyl alcohol. The magnetic gel was dried to generate a biocompatible magnetic film. Nanosized iron oxide particles (γ-Fe₂O₃, ~7 nm) have been used to produce the magnetic gel.

Results

The surface morphology and magnetic properties of the gel films were studied. The iron oxide particles are superparamagnetic and the gel film also showed superparamagnetic behavior.

Conclusion

Magnetic gel made out of crosslinked magnetic nanoparticles in the polymer network was found to be stable and possess the magnetic properties of the nanoparticles.