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|title: ||Biofunctionalized ferromagnetic CoPt3/polymer nanocomposites|
|authors: ||Martins, M. A.|
Neves, M. C.
Esteves, A. C. C.
Girginova, P. I.
Guiomar, A. J.
Amaral, V. S.
|issue date: ||Apr-2007|
|publisher: ||Institute of Physics|
|abstract: ||Magnetic latexes were prepared by the encapsulation of organically capped
CoPt3 nanoparticles via miniemulsion in situ radical polymerization of
tert-butyl acrylate (tBA). This is the first example of a CoPt3 based polymer
nanocomposite showing ferromagnetic behaviour at room temperature. Each
nanocomposite particle contains a magnetic core composed of CoPt3
nanoparticles (d ∼ 7 nm, a0 = 3.848 A° ) encapsulated by poly(t-butyl
acrylate). The CoPt3/PtBA latexes contain polyester groups that can be
readily hydrolysed, rendering the surface with carboxylic functionalities and
hence allowing bioconjugation. Complementary to such surface modification
experiments, we report that bovine IgG antibodies can bind to the magnetic
latexes, and the potential of the nanocomposites for in vitro specific
bioapplications is discussed.|
|publisher version/DOI: ||dx.doi.org/10.1088/0957-4484/18/21/215609|
|appears in collections||DQ - Artigos|
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