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Magnetically multiplexed heating of single domain nanoparticles

Author(s)
Romero, G.; Christiansen, Michael Gary; Senko, Alexander William; Chen, Ritchie; Anikeeva, Polina Olegovna
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Abstract
Selective hysteretic heating of multiple collocated types of single domain magnetic nanoparticles (SDMNPs) by alternating magnetic fields (AMFs) may offer a useful tool for biomedical applications. The possibility of “magnetothermal multiplexing” has not yet been realized, in part due to prevalent use of linear response theory to model SDMNP heating in AMFs. Dynamic hysteresis modeling suggests that specific driving conditions play an underappreciated role in determining optimal material selection strategies for high heat dissipation. Motivated by this observation, magnetothermal multiplexing is theoretically predicted and empirically demonstrated by selecting SDMNPs with properties that suggest optimal hysteretic heat dissipation at dissimilar AMF driving conditions. This form of multiplexing could effectively offer multiple channels for minimally invasive biological signaling applications.
Date issued
2014-05
URI
http://hdl.handle.net/1721.1/91666
Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Journal
Applied Physics Letters
Publisher
American Institute of Physics (AIP)
Citation
Christiansen, M. G., A. W. Senko, R. Chen, G. Romero, and P. Anikeeva. “Magnetically Multiplexed Heating of Single Domain Nanoparticles.” Appl. Phys. Lett. 104, no. 21 (May 26, 2014): 213103. © 2014 AIP Publishing LLC
Version: Final published version
ISSN
0003-6951
1077-3118

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