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Cancer Imaging and Thermal Therapy Facilitated by Nanoparticles and Multiphoton Microscopy

[+] Author Affiliations
Emily S. Day, Lissett R. Bickford, Rebekah A. Drezek, Jennifer L. West

Rice University, Houston, TX

Paper No. NEMB2010-13180, pp. 221-222; 2 pages
doi:10.1115/NEMB2010-13180
From:
  • ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology
  • ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology
  • Houston, Texas, USA, February 7–10, 2010
  • Conference Sponsors: ASME Nanotechnology Council
  • ISBN: 978-0-7918-4392-5 | eISBN: 978-0-7918-3866-2
  • Copyright © 2010 by ASME

abstract

Despite use of currently available technologies, cancer remains one of the leading causes of death worldwide. Gold-based nanoparticles that strongly absorb near-infrared light, such as nanoshells and nanorods, have shown potential as both diagnostic and therapeutic agents for cancer management (1–3). In this work we explored the use of gold-gold sulfide nanoparticles (mean diameter = 37 nm) with peak plasmon resonance at 800 nm for combined imaging and therapy of breast cancer. Upon excitation with a pulsed laser, these particles exhibit two-photon induced luminescence which may be used to image cancer cells. In addition, by increasing the power output of the laser, cancer cells can be thermally ablated as the gold-gold sulfide nanoparticles convert the light energy into heat.

Copyright © 2010 by ASME

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