Nano Archive

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.

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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 > Nano objects
Biomedical Science > Nanotechnology for human health
Biomedical Science > Nanomedicine
ID Code:5508
Deposited By:IoN
Deposited On:22 May 2009 12:01
Last Modified:22 May 2009 12:01

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