Biofunctionalized ferromagnetic CoPt3/polymer nanocomposites

M.A. Martins, M.C. Neves, A.C. Carvalho Esteves, de, P.I. Girginova, A.J. Guiomar, V.S. Amaral, T. Trindade

Research output: Contribution to journalArticleAcademicpeer-review

15 Citations (Scopus)

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 Å) 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.
LanguageEnglish
Article number215609
Pages215609-1/7
Number of pages8
JournalNanotechnology
Volume18
Issue number21
DOIs
StatePublished - 2007

Fingerprint

Latex
Latexes
Nanocomposites
Polymers
Nanoparticles
Magnetic cores
Polyesters
Free radical polymerization
Encapsulation
Antibodies
Surface treatment
Immunoglobulin G
Experiments
Temperature

Cite this

Martins, M. A., Neves, M. C., Carvalho Esteves, de, A. C., Girginova, P. I., Guiomar, A. J., Amaral, V. S., & Trindade, T. (2007). Biofunctionalized ferromagnetic CoPt3/polymer nanocomposites. Nanotechnology, 18(21), 215609-1/7. [215609]. DOI: 10.1088/0957-4484/18/21/215609
Martins, M.A. ; Neves, M.C. ; Carvalho Esteves, de, A.C. ; Girginova, P.I. ; Guiomar, A.J. ; Amaral, V.S. ; Trindade, T./ Biofunctionalized ferromagnetic CoPt3/polymer nanocomposites. In: Nanotechnology. 2007 ; Vol. 18, No. 21. pp. 215609-1/7
@article{f1eacda979644a4095f380ee084db00a,
title = "Biofunctionalized ferromagnetic CoPt3/polymer nanocomposites",
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 {\AA}) 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.",
author = "M.A. Martins and M.C. Neves and {Carvalho Esteves, de}, A.C. and P.I. Girginova and A.J. Guiomar and V.S. Amaral and T. Trindade",
year = "2007",
doi = "10.1088/0957-4484/18/21/215609",
language = "English",
volume = "18",
pages = "215609--1/7",
journal = "Nanotechnology",
issn = "0957-4484",
publisher = "Institute of Physics",
number = "21",

}

Martins, MA, Neves, MC, Carvalho Esteves, de, AC, Girginova, PI, Guiomar, AJ, Amaral, VS & Trindade, T 2007, 'Biofunctionalized ferromagnetic CoPt3/polymer nanocomposites' Nanotechnology, vol. 18, no. 21, 215609, pp. 215609-1/7. DOI: 10.1088/0957-4484/18/21/215609

Biofunctionalized ferromagnetic CoPt3/polymer nanocomposites. / Martins, M.A.; Neves, M.C.; Carvalho Esteves, de, A.C.; Girginova, P.I.; Guiomar, A.J.; Amaral, V.S.; Trindade, T.

In: Nanotechnology, Vol. 18, No. 21, 215609, 2007, p. 215609-1/7.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Biofunctionalized ferromagnetic CoPt3/polymer nanocomposites

AU - Martins,M.A.

AU - Neves,M.C.

AU - Carvalho Esteves, de,A.C.

AU - Girginova,P.I.

AU - Guiomar,A.J.

AU - Amaral,V.S.

AU - Trindade,T.

PY - 2007

Y1 - 2007

N2 - 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 Å) 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.

AB - 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 Å) 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.

U2 - 10.1088/0957-4484/18/21/215609

DO - 10.1088/0957-4484/18/21/215609

M3 - Article

VL - 18

SP - 215609-1/7

JO - Nanotechnology

T2 - Nanotechnology

JF - Nanotechnology

SN - 0957-4484

IS - 21

M1 - 215609

ER -

Martins MA, Neves MC, Carvalho Esteves, de AC, Girginova PI, Guiomar AJ, Amaral VS et al. Biofunctionalized ferromagnetic CoPt3/polymer nanocomposites. Nanotechnology. 2007;18(21):215609-1/7. 215609. Available from, DOI: 10.1088/0957-4484/18/21/215609