Article ID Journal Published Year Pages File Type
600065 Colloids and Surfaces B: Biointerfaces 2013 4 Pages PDF
Abstract

Liposomes with superparamagnetic iron oxide nanoparticles embedded in membrane were prepared by the supercritical carbon dioxide (scCO2) method. The cargos can be released from liposomes by both triggered agents, temperature and alternating current electromagnetic field (AMF). The release mechanism was explained from the view of microstructure change investigated by fluorescence probe method. The contents could be repetitively released from liposomes controlled by switching on and off the AMF. The results indicated that the release from the liposomes was due to the magnetocaloric effect resulting in the liposome phase transition and the magnetic-impelled motions leading to the improved bilayer permeability, rather than the destruction of the liposome structure.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Liposomes with hydrophobic magnetic nanoparticles in membrane were prepared. ► The release of cargo from magnetoliposomes can be controlled by thermal stimulation. ► The release of cargo from magnetoliposomes can be triggered by magnetic stimulation. ► Repetitive release proved the retained liposome structure during the release process. ► Hydrophobic magnetic nanoparticles affects the release property of magnetoliposomes.

Related Topics
Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry
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