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Controllable release from high-transition temperature magnetoliposomes by low-level magnetic stimulation

TitoloControllable release from high-transition temperature magnetoliposomes by low-level magnetic stimulation
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2015
AutoriSpera, R., Apollonio F., Liberti M., Paffi A., Merla Caterina, Pinto Rosanna, and Petralito S.
RivistaColloids and Surfaces B: Biointerfaces
Volume131
Paginazione136-140
ISSN09277765
Parole chiavealgorithm, Algorithms, Alternating magnetic field, article, bilayer membrane, Calorimetry, Chemical, chemical model, chemistry, Controllable release, controlled drug release, controlled study, Differential Scanning, Differential scanning calorimetry, Drug delivery, Electric conductivity, electromagnetic field, Electromagnetic Fields, Heat, High reproducibility, High temperature, Hot Temperature, Hydration, lipid, Lipids, liposome, liposome membrane, Liposomes, magnetic field, Magnetic fields, Magnetic stimulation, Magnetics, Magnetism, magnetite nanoparticle, Magnetite Nanoparticles, magnetoliposome, Magnetoliposomes, mathematical model, mechanical stress, Models, Multiphysics simulations, Nanoparticles, oscillation, phase transition, priority journal, reproducibility, simulation, spectrophotometry, Static Electricity, Stimuli-responsive, Stresses, Temperature increase, Temperature sensitivity, transition temperature, unclassified drug
Abstract

High-transition temperature liposomes with embedded coated magnetite nanoparticles were prepared using the thin lipid film hydration method in order to obtain magnetoliposomes not sensitive to temperature increase (at least up to 50. °C). Accordingly, drug can be released from such magnetoliposomes using a low-level electromagnetic field as triggering agent, while no delivery would be obtained with temperature increase within the physiological acceptable range. The hypothesized release mechanism involves mechanical stress of the liposome membrane due to nanoparticles oscillations and it is investigated by means of a numerical model evaluated using multiphysics simulations. The carrier content was repetitively released by switching on and off a 20. kHz, 60. A/m magnetic field. The results indicated high reproducibility of cycle-to-cycle release induced by the magnetic-impelled motions driving to the destabilization of the bilayer rather than the liposome phase transition or the destruction of the liposome structure. © 2015 Published by Elsevier B.V.

Note

cited By 12

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84930666570&doi=10.1016%2fj.colsurfb.2015.04.030&partnerID=40&md5=4f86d12b9522f29789044526412c8f7a
DOI10.1016/j.colsurfb.2015.04.030
Citation KeySpera2015136