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A biocompatible magnetic film: synthesis and characterization.

Chatterjee J, Haik Y, Chen CJ - Biomagn Res Technol (2004)

Bottom Line: Nanosized iron oxide particles (gamma-Fe2O3, ~7 nm) have been used to produce the magnetic gel.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.

View Article: PubMed Central - HTML - PubMed

Affiliation: Center for Nanomagnetics and Biotechnology, Florida State University, Tallahassee, Florida 32310, USA. haik@eng.fsu.edu

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 (gamma-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.

No MeSH data available.


TEM micrograph for maghemite (γ-Fe2O3) particles
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Figure 1: TEM micrograph for maghemite (γ-Fe2O3) particles

Mentions: The size and the shape of the surface modified maghemite particles were determined by transmission electron microscopy (JEOL STEM 2010). The micrograph is shown in Fig. 1. The particles are in the size range of 7 – 10 nm and have fairly uniform distribution. These particles are superparamagnetic in nature as reported earlier [6].


A biocompatible magnetic film: synthesis and characterization.

Chatterjee J, Haik Y, Chen CJ - Biomagn Res Technol (2004)

TEM micrograph for maghemite (γ-Fe2O3) particles
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC373455&req=5

Figure 1: TEM micrograph for maghemite (γ-Fe2O3) particles
Mentions: The size and the shape of the surface modified maghemite particles were determined by transmission electron microscopy (JEOL STEM 2010). The micrograph is shown in Fig. 1. The particles are in the size range of 7 – 10 nm and have fairly uniform distribution. These particles are superparamagnetic in nature as reported earlier [6].

Bottom Line: Nanosized iron oxide particles (gamma-Fe2O3, ~7 nm) have been used to produce the magnetic gel.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.

View Article: PubMed Central - HTML - PubMed

Affiliation: Center for Nanomagnetics and Biotechnology, Florida State University, Tallahassee, Florida 32310, USA. haik@eng.fsu.edu

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 (gamma-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.

No MeSH data available.