Nanotechnology Now





Heifer International

Wikipedia Affiliate Button


DHgate

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

OSU researchers prove magnetism can control heat, sound: Team leverages OSC services to help confirm, interpret experimental findings May 29th, 2015

Two UCSB Professors Receive Early Career Research Awards: The Department of Energy’s award for young scientists acknowledges UC Santa Barbara’s standing as a top tier research institution May 29th, 2015

Global Carbon Nanotubes (CNT) Market Expected To Reach USD 3.42 Billion By 2022 May 29th, 2015

New chip makes testing for antibiotic-resistant bacteria faster, easier: Researchers at the University of Toronto design diagnostic chip to reduce testing time from days to one hour, allowing doctors to pick the right antibiotic the first time May 28th, 2015

Nanotubes/Buckyballs/Fullerenes

Global Carbon Nanotubes (CNT) Market Expected To Reach USD 3.42 Billion By 2022 May 29th, 2015

SouthWest NanoTechnologies Introduces AgeNT™ Transparent Conductor System at SID Display Week, Booth #543 May 28th, 2015

Physicists precisely measure interaction between atoms and carbon surfaces May 28th, 2015

Basel physicists develop efficient method of signal transmission from nanocomponents May 23rd, 2015

Nanomedicine

New chip makes testing for antibiotic-resistant bacteria faster, easier: Researchers at the University of Toronto design diagnostic chip to reduce testing time from days to one hour, allowing doctors to pick the right antibiotic the first time May 28th, 2015

Arrowhead to Present at Jefferies 2015 Healthcare Conference May 27th, 2015

Seeing the action: UCSB researchers develop a novel device to image the minute forces and actions involved in cell membrane hemifusion May 27th, 2015

Nanotechnology identifies brain tumor types through MRI 'virtual biopsy' in animal studies: If results are confirmed in humans, tumor cells could someday be diagnosed by MRI imaging and treated with tumor-specific IV injections; new NIH grant will fund future study May 27th, 2015

Discoveries

OSU researchers prove magnetism can control heat, sound: Team leverages OSC services to help confirm, interpret experimental findings May 29th, 2015

Nano-capsules designed for diagnosing malignant tumours: Japanese researchers have developed adaptable nano-capsules that can help in the diagnosis of glioblastoma cells - a highly invasive form of brain tumours May 28th, 2015

Physicists precisely measure interaction between atoms and carbon surfaces May 28th, 2015

Linking superconductivity and structure May 28th, 2015

Announcements

OSU researchers prove magnetism can control heat, sound: Team leverages OSC services to help confirm, interpret experimental findings May 29th, 2015

Two UCSB Professors Receive Early Career Research Awards: The Department of Energy’s award for young scientists acknowledges UC Santa Barbara’s standing as a top tier research institution May 29th, 2015

Global Carbon Nanotubes (CNT) Market Expected To Reach USD 3.42 Billion By 2022 May 29th, 2015

New chip makes testing for antibiotic-resistant bacteria faster, easier: Researchers at the University of Toronto design diagnostic chip to reduce testing time from days to one hour, allowing doctors to pick the right antibiotic the first time May 28th, 2015

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