Characterization and application of magnetic P (St-co-MAA-co-AM)/SiO2 composite microspheres View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2007-04-27

AUTHORS

Zuli Liu, Pandong Liu, Cuicui Liu, Kailun Yao, Qin Ning, Dong Xi, Huaping Xu

ABSTRACT

A sol–gel procedure was used to cover the magnetic P (St-co-MAA-co-AM) microspheres with a SiO2 layer, forming MMS/SiO2 composite micospheres. The composite spheres were synthesized by a two-step process. First, magnetic P (St-co-MAA-co-MA) microspheres (MMS) were prepared by microemulsion polymerization of styrene (St), methacrylic acid (MAA) and acryamide (AM) in the presence of magnetic fluid. In the next step, MMS/SiO2 spheres were obtained by addition of tetraethyl orthsilicate (TEOS) to the mixture of MMS, ammonium hydroxide and ethanol. The morphology, structure and properties of the MMS/SiO2 were characterized and the results indicate that the MMS/SiO2 spheres are about 2 μm in size with superparamagnetic behavior. The surface of the MMS/SiO2 spheres was functioned with –COOH successfully. Bioconjugation to IgG was also studied. More... »

PAGES

5147-5151

References to SciGraph publications

  • 2006-06-27. Characterization and application of Fe3O4/SiO2 nanocomposites in JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
  • Identifiers

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    http://scigraph.springernature.com/pub.10.1007/s10853-006-1284-0

    DOI

    http://dx.doi.org/10.1007/s10853-006-1284-0

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