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Magnetic-Responsive Release Controlled by Hot Spot Effect

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Guisasola, Eduardo and Báez Rubio, Alejandro and Talelli, Marina and Arcos Navarrete, Daniel and Moros, Maria and Fuente, Jesus M. de la and Vallet Regí, María (2015) Magnetic-Responsive Release Controlled by Hot Spot Effect. Langmuir, 31 (46). pp. 12777-12782. ISSN 0743-7463

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Official URL: http://pubs.acs.org/



Abstract

Magnetically triggered drug delivery nanodevices have attracted great attention in nanomedicine, as they can feature as smart carriers releasing their payload at clinician's will. The key principle of these devices is based on the properties of magnetic cores to generate thermal energy in the presence of an alternating magnetic field. Then, the temperature increase triggers the drug release. Despite this potential, the rapid heat dissipation in living tissues is a serious hindrance for their clinical application. It is hypothesized that magnetic cores could act as hot spots, this is, produce enough heat to trigger the release without the necessity to increase the global temperature. Herein, a nanocarrier has been designed to respond when the temperature reaches 43 degrees C. This material has been able to release its payload under an alternating magnetic field without the need of increasing the global temperature of the environment, proving the efficacy of the hot spot mechanism in magnetic-responsive drug delivery devices.


Item Type:Article
Additional Information:

RESEARCHER ID K-8193-2014 (Alejandro Baeza)
ORCID 0000-0002-9042-8865 (Alejandro Baeza)
RESEARCHER ID E-8300-2012 (Eduardo Guisasola Cal)
ORCID 0000-0002-2549-1745 (Eduardo Guisasola Cal)
RESEARCHER ID M-3378-2014 (María Vallet Regí)
ORCID 0000-0002-6104-4889 (María Vallet Regí)
RESEARCHER ID L-6167-2014 (Daniel Arcos Navarrete)
ORCID 0000-0002-5367-7272 (Daniel Arcos Navarrete)

Uncontrolled Keywords:Mesoporous silica nanoparticles, Drug-delivery, N-isopropylacrylamide, Solid tumors, Hyperthermia, Temperature, Nanomedicine, Therapy, Cancer, Shell
Subjects:Sciences > Chemistry > Materials
Sciences > Chemistry > Chemistry, Inorganic
ID Code:41727
Deposited On:22 May 2017 08:40
Last Modified:22 May 2017 14:29

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