A Facile Approach for Transferring Hydrophobic Magnetic Nanoparticles into Water-Soluble Particles

6533b7dbfe1ef96bd1270901

RESEARCH PRODUCT

A Facile Approach for Transferring Hydrophobic Magnetic Nanoparticles into Water-Soluble Particles

Wolfgang Knoll Ziyong Cheng Shuhua Liu Haitao Gao Ning Ding Ruili Liu Wolfgang Tremel Patrick W. Beines

subject

chemistry.chemical_classification Aqueous solution Materials science Hydrodynamic radius Polymers and Plastics Organic Chemistry Nanoparticle Polymer Condensed Matter Physics Solvent chemistry Polymer chemistry Materials Chemistry Copolymer Magnetic nanoparticles Thermal stability Physical and Theoretical Chemistry

description

A novel, easy and high-efficient method is described for transferring hydrophobic magnetic Fe 3 O 4 nanoparticles from organic to aqueous solution by wrapping a thermo-responsive and photocrosslinkable poly(N-isopropylacrylamide) (PNIPAm) terpolymer around the particles. The wrapping procedure is introduced by the co-nonsolvent transition of PNIPAm in the mixing solvent and the polymer can dissolve in water carrying Fe 3 O 4 nanoparticles by noncovalent interaction. The temperature-dependant and magnetic properties of the water-soluble particles are characterized in this paper.

year	journal	country	edition	language
2008-06-05	Macromolecular Chemistry and Physics

https://doi.org/10.1002/macp.200800085

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