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Size-dependent joule heating of gold nanoparticles using capacitively coupled radiofrequency fields

Moran, Christine H. and Wainerdi, Sean M. and Cherukuri, Tonya K. and Kittrell, Carter and Wiley, Benjamin J. and Nicholas, Nolan W. and Curley, Steven A. and Kanzius, John S. and Cherukuri, Paul (2009) Size-dependent joule heating of gold nanoparticles using capacitively coupled radiofrequency fields. Nano Research, 2 (5). pp. 400-405. ISSN 1998-0124 (Print) 1998-0000 (Online)

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Official URL: http://www.springerlink.com/content/163q3280121966...

Abstract

Capacitively coupled shortwave radiofrequency fields (13.56 MHz) resistively heat low concentrations (∼1 ppm) of gold nanoparticles with a thermal power dissipation of ∼380 kW/g of gold. Smaller diameter gold nanoparticles (< 50 nm) heat at nearly twice the rate of larger diameter gold nanoparticles (≥50 nm), which is attributed to the higher resistivity of smaller gold nanostructures. A Joule heating model has been developed to explain this phenomenon and provides critical insights into the rational design and engineering of nanoscale materials for noninvasive thermal therapy of cancer.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:8376
Deposited By:JNCASR
Deposited On:23 Apr 2010 06:34
Last Modified:23 Apr 2010 06:34

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