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TitleMagnetoliposomes based on nickel/silica core/shell nanoparticles : synthesis and characterization
Author(s)Rodrigues, Ana Rita Oliveira
Gomes, Isabel Alexandra Domingues Tarroso
Almeida, B. G.
Araújo, João P.
Castanheira, Elisabete M. S.
Coutinho, Paulo J. G.
Magnetic materials
Light scattering
Photoluminescence spectroscopy
Magnetic properties
Issue dateDec-2014
JournalMaterials chemistry and physics
Abstract(s)In the present work, nickel magnetic nanoparticles with diameters lower than 100nm, with and without silica shell, were synthesized by microheterogeneous templating. The magnetic properties of the nanoparticles show a typical ferromagnetic behavior with a coercive field of 80Oe. Dry magnetoliposomes (DMLs) with diameter between 58nm and 76nm were obtained from the synthesis of nanoparticles in the presence of a lipid or surfactant layer, and aqueous magnetoliposomes (AMLs) were obtained by encapsulation of the nanoparticles in liposomes. FRET (Förster resonance energy transfer) experiments were performed to study the non-specific interactions between aqueous magnetoliposomes and giant unilamellar vesicles (GUVs), as models of cell membranes. It was possible to detect membrane fusion between GUVs and AMLs containing both NBD-C6-HPC (donor) and the dye Nile Red (acceptor).
Description"Available online 18 September 2014"
AccessOpen access
Appears in Collections:CDF - FAMO - Artigos/Papers (with refereeing)

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