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1.  A biocompatible magnetic film: synthesis and characterization 
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 (╬│-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.
doi:10.1186/1477-044X-2-2
PMCID: PMC373455  PMID: 14761251

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