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| Volume 3, Issue 02 - 2007 |
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| 3 |
FUNCTIONALIZED NANOSTRUCTURES WITH MAGNETITE CORE AND PYRROLE COPOLYMERS SHELL |
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| Pages 55-62 |
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| R. TURCU1, A. NAN1, I. CRACIUNESCU1, S. KARSTEN2, O. PANA1, I. BRATU1, D. BICA3,
L. VEKAS3, O. CHAUVET4, D. EBERBECK5, H. AHLERS5
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1 NationaI Institute for Research and Development of Isotopic and Molecular Technologies, P.O.Box 700,
Cluj-Napoca 5, 400293 Romania
2 Institute fur Chemie, Humbold-Universitat Berlin, 12489 Berlin
3 Romanian Academy, Timisoara Branch, Magnetic Fluids Laboratory, Timisoara, Romania
4 Institute of Materials Jean Rouxel Nantes, 44322 Nantes cedex 3, France
5 Physikalisch-Technische Bundesanstalt, Abbestraâe 2-12, 10587 Berlin, Germany
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| Received 21 April 2007; accepted 25 June 2007 |
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| We report the synthesis and characterization of novel core-shell hybrid organic-inorganic nanostructures, obtained by covering the magnetic nanoparticles with a conjugated polymer layer (functionalized pyrrole copolymers). We focus especially on the structure-properties relationship and optimization of the hybrid nanostructures physicochemical characteristics to make them suitable for biotechnology. Magnetic nanofluid, pyrrole and substituted pyrrole monomers were used as starting materials. Two type of pyrrole monomers with attached –functional groups were prepared: (a) â-(1pyrrolyl) propanoic acid and (b) 3-methyl-2-(4-oxo-4-(1H-pyrrole-3-yl)butanamido) pentanoic acid. The functionalized magnetic nanostructures were obtained by oxidative polymerization of substituted and unsubstituted pyrrole in aqueous solution containing ammonium peroxodisulfate (APS) as oxidant and water based magnetic nanofluid. The properties of the functionalized magnetic-copolymer nanostructures were investigated by TEM, HRTEM, FTIR spectroscopy and magnetization measurements. |
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