Liu, X, Chen, HJ, Chen, X et al. (3 more authors) (2014) Electromagnetic heating effect of aggregated gold nanoparticle colloids. Journal of Applied Physics, 115 (9). ARTN 094903. ISSN 0021-8979
Abstract
Gold nanoparticles (GNPs) have been recently investigated intensively for potential hyperthermia treatment of malignant cancer cells in combination with radiofrequency (RF) electromagnetic (EM) fields/waves. However, many controversial results have been reported on whether GNPs can be heated by EM fields. It has been suggested that aggregated GNPs may be heated significantly by a RF field, which however has not been examined experimentally. This work proposes a novel electric treatment of mono-dispersed particles to create aggregated GNPs, and conducts an investigation of their bulk heating behavior under a 655 nm laser and a 13.56 MHz RF electric field. It is revealed that the heating rates of aggregated colloids are significantly higher than those of mono-dispersed GNPs for the 655 nm laser, whereas at 13.56 MHz, the heating effects are barely noticeable for both aggregated and mono-dispersed colloids. Various possible reasons are discussed and the negligible electric field enhancement is believed to be responsible at 13.56 MHz.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2014 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The article appeared in Journal of Applied Physics 115, 094903 (2014) and may be found at http://dx.doi.org/10.1063/1.4867615. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 30 Mar 2016 14:18 |
Last Modified: | 30 Mar 2016 14:18 |
Published Version: | http://dx.doi.org/10.1063/1.4867615 |
Status: | Published |
Publisher: | American Institute of Physics |
Identification Number: | 10.1063/1.4867615 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:94763 |