Magnetically Triggered Nanocomposite Membranes: A Versatile Platform for Triggered Drug Release
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Langer_Magnetically triggered.pdf
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Author(s)
Hoare, Todd
Timko, Brian P.
Santamaria, Jesus
Goya, Gerardo F.
Irusta, Silvia
Lau, Samantha
Stefanescu, Cristina F.
Lin, Debora
Kohane, Daniel S.
Langer, Robert S
Date Issued
February 2011
Journal
Nano Letters
Publisher
American Chemical Society (ACS)
Citation
Hoare, Todd, Brian P. Timko, Jesus Santamaria, Gerardo F. Goya, Silvia Irusta, Samantha Lau, Cristina F. Stefanescu, Debora Lin, Robert Langer, and Daniel S. Kohane. Magnetically Triggered Nanocomposite Membranes: A Versatile Platform for Triggered Drug Release. Nano Letters 11, no. 3 (March 9, 2011): 1395-1400.
Version
Author's final manuscript
Abstract
Drug delivery devices based on nanocomposite membranes containing thermoresponsive nanogels and superparamagnetic nanoparticles have been demonstrated to provide reversible, on−off drug release upon application (and removal) of an oscillating magnetic field. We show that the dose of drug delivered across the membrane can be tuned by engineering the phase transition temperature of the nanogel, the loading density of nanogels in the membrane, and the membrane thickness, allowing for on-state delivery of model drugs over at least 2 orders of magnitude (0.1−10 μg/h). The zero-order kinetics of drug release across the membranes permit drug doses from a specific device to be tuned according to the duration of the magnetic field. Drugs over a broad range of molecular weights (500−40000 Da) can be delivered by the same membrane device. Membrane-to-membrane and cycle-to-cycle reproducibility is demonstrated, suggesting the general utility of these membranes for drug delivery.
Description
Author Manuscript 2012 March 9.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Koch Institute for Integrative Cancer Research at MIT
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DOI of Published Version
https://doi.org/10.1021/nl200494t
