Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Correction - SouthWest NanoTechnologies' Single-Wall Carbon Nanotubes Effectively Absorb Phototherapy Dye Which Could Be Beneficial in Potential Photothermal Cancer Therapies

Abstract:

- New Research Shows Broad Spectrum of Light Absorption, from Ultraviolet (UV) to Near Infrared (NIR),
May Be Critical Step in Light-Based Cancer Therapies -

Correction - SouthWest NanoTechnologies' Single-Wall Carbon Nanotubes Effectively Absorb Phototherapy Dye Which Could Be Beneficial in Potential Photothermal Cancer Therapies

Norman, OK | Posted on June 23rd, 2011

SouthWest NanoTechnologies' (SWeNT) Single-Wall Carbon Nanotubes (SWNTs), in a new research study, show absorption of Indocyanine Green (ICG) -- a functional dye with unique photomechanical, photochemical, and photobiological properties.

The ICG-SWNT complexes formed are sensitive to a broad spectrum of light, ranging from ultraviolet (UV) to near infrared (NIR), which may help unlock this novel nanosystem for use in potential applications in photothermal cancer therapies. According to the study published in Journal of X-Ray Science and Technology, researchers in China showed that, based on the ICG-SWT complexes sensitivity to a broad spectrum of light, "it is expected that an effective phototherapy is not limited to a single light source." This new research demonstrates the potential for future photothermal therapies in the spectrum of visible light.

"Photothermal therapy has been attracting greater attention," according to the authors. "Usually only a laser of single wavelength was used, such as 808nm, 980nm or 1064nm in treatments. Recently, it was shown that a 658nm laser within natural light spectrum coupled with nanoparticles could cause irreversible photothermal damage to tumors. However, with the increased concentration of SWNTs increase in our experiments, typical absorption peaks of ICG monomer (at 780nm) or dimer (at 700nm) were decreased and typical absorption peak of SWNT (at 1030nm) was increased. The researchers demonstrate that the absorption of ICG at 700nm and 780nm transformed the light affected SWNTs in the range of (UV) to near-infrared (NIR) regions. As a result, the increased absorption of SWNTs from UV to the NIR regions opens this novel nanosystem to potential applications in the photothermal cancer treatment.

"We're excited about the potential applications from this cutting-edge research that will hopefully yield new and exciting cancer therapies," explains SWeNT CEO Dave Arthur. "The number of biomedical research studies using our SWCNT continues to grow, pointing to new opportunities for SouthWest NanoTechnologies, Inc. as the world leader in high quality, Single-Wall and Specialty Multi-Wall (SMW™) carbon nanotubes."

The research was supported by the National Basic Research Program of China, the Program for Changjiang Scholars and Innovative Research Team in University and the National Natural Science Foundation of China.

"Noncovalent functionalization of single-walled carbon nanotubes by indocyanine green: Potential nanocomplexes for photothermal therapy"

Journal of -Ray Science and Technology
Xiaohui Zheng and Feifan Zhou
MOE Key Laboratory of Laser Life Science & Institute of Laser Life Science, College of
Biophotonics, South China Normal University, Guangzhou, China

####

About SouthWest NanoTechnologies
SouthWest NanoTechnologies, Inc. (SWeNT) is a privately-held specialty chemical company that manufactures high quality Single-W all and Specialty Multi-Wall (SMW™) carbon nanotubes, printable inks and CNT-coated fabrics for a range of products and applications including energy-efficient lighting, affordable photovoltaics, improved energy storage and printed electronics. SWeNT was created in 2001 to spin off nanotube research developed at the University of Oklahoma.

For more information, please click here

Contacts:
Andrew Lavin
A. Lavin Communications
516-944-4486

Copyright © SouthWest NanoTechnologies

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Tough foam from tiny sheets: Rice University lab uses atom-thick materials to make ultralight foam July 29th, 2014

Zenosense, Inc. July 29th, 2014

Optimum inertial design for self-propulsion: A new study investigates the effects of small but finite inertia on the propulsion of micro and nano-scale swimming machines July 29th, 2014

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

Nanotubes/Buckyballs

SouthWest NanoTechnologies Names NanoSperse as A SWeNT Certified Compounder July 29th, 2014

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

UCF Nanotech Spinout Developing Revolutionary Battery Technology: Power the Next Generation of Electronics with Carbon July 23rd, 2014

University of Houston researchers create new method to draw molecules from live cells: Technique using magnetic nanomaterials offers promise for diagnosis, gene therapy July 17th, 2014

Nanomedicine

Zenosense, Inc. July 29th, 2014

Optimum inertial design for self-propulsion: A new study investigates the effects of small but finite inertia on the propulsion of micro and nano-scale swimming machines July 29th, 2014

FEI adds Phase Plate Technology and Titan Halo TEM to its Structural Biology Product Portfolio: New solutions provide the high-quality imaging and contrast necessary to analyze the 3D structure of molecules and molecular complexes July 28th, 2014

New imaging agent provides better picture of the gut July 25th, 2014

Discoveries

Tough foam from tiny sheets: Rice University lab uses atom-thick materials to make ultralight foam July 29th, 2014

Zenosense, Inc. July 29th, 2014

Optimum inertial design for self-propulsion: A new study investigates the effects of small but finite inertia on the propulsion of micro and nano-scale swimming machines July 29th, 2014

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

Announcements

Tough foam from tiny sheets: Rice University lab uses atom-thick materials to make ultralight foam July 29th, 2014

Zenosense, Inc. July 29th, 2014

Optimum inertial design for self-propulsion: A new study investigates the effects of small but finite inertia on the propulsion of micro and nano-scale swimming machines July 29th, 2014

A new way to make microstructured surfaces: Method can produce strong, lightweight materials with specific surface properties July 29th, 2014

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More














ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE