Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Improved material for ‘laser welding’ of tissue in intestinal surgery

A new “solder” for laser welding of tissue during surgery has the potential to produce stronger seals and expand use of this alternative to conventional sutures and stapling in intestinal surgery.
Credit: iStockphoto/Thinkstock
A new “solder” for laser welding of tissue during surgery has the potential to produce stronger seals and expand use of this alternative to conventional sutures and stapling in intestinal surgery.

Credit: iStockphoto/Thinkstock

Abstract:
A new "solder" for laser welding of tissue during surgical operations has the potential to produce stronger seals and expand use of this alternative to conventional sutures and stapling in intestinal surgery, scientists are reporting. Their study, which involves use of a gold-based solder, or sealing material, appears in the journal ACS Nano.

Improved material for ‘laser welding’ of tissue in intestinal surgery

Washington, DC | Posted on May 8th, 2013

Kaushal Rege and colleagues explain that laser tissue welding (LTW) is a "stitch-free" surgical method for connecting and sealing blood vessels, cartilage in joints, the liver, the urinary tract and other tissues. LTW involves use of laser light to heat tissue, causing changes that enable the sides of incisions to seal. LTW has advantages over sutures or staples, such as a shorter operation time and reduced scarring. However, it forms weak seals that can be a special problem in intestinal surgery. Leaks of intestinal contents can cause extremely painful and life-threatening abdominal infections. The scientists set out to develop an improved form of LTW that produces strong seals.

They describe development and successful laboratory tests of the material, a tissue solder called a plasmonic nanocomposite. It has gold nanorods in it that are so small that that 100,000 could fit in the period at the end of this sentence. The gold nanorods are wrapped inside a material that makes it more elastic so it can move with the body. They found that when the material was used as a light-activated solder for laser-welding cuts in pig intestines, it formed a strong, "liquid-tight" but elastic seal, preventing bacteria from leaking out. "Taken together, these plasmonic nanocomposites are exciting materials for laser-based tissue repair," say the researchers. The researchers plan to investigate these materials in animals with intestinal injury.

The authors acknowledge funding from the Defense Threat Reduction Agency and the Fulton Undergraduate Research Initiative.

####

About American Chemical Society (ACS)
The American Chemical Society is a nonprofit organization chartered by the U.S. Congress. With more than 163,000 members, ACS is the world’s largest scientific society and a global leader in providing access to chemistry-related research through its multiple databases, peer-reviewed journals and scientific conferences. Its main offices are in Washington, D.C., and Columbus, Ohio.

For more information, please click here

Contacts:
Kaushal Rege, Ph.D.
Chemical Engineering
Biomedical Engineering
Arizona State University
Tempe, Ariz. 85287-6106
Phone: 480-727-8616
Fax: 480-727-9321


Science Inquiries:
Michael Woods
editor

202-872-6293

General Inquiries:
Michael Bernstein

202-872-6042

Copyright © American Chemical Society (ACS)

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 Links

DOWNLOAD FULL TEXT ARTICLE - “Laser Welding of Ruptured Intestinal Tissue Using Plasmonic Polypeptide Nanocomposite Solders”

Related News Press

News and information

Arrowhead Pharmaceuticals to Host R&D Day on Emerging Pipeline of RNAi Therapeutics September 25th, 2018

Arrowhead Pharmaceuticals to Host R&D Day on Emerging Pipeline of RNAi Therapeutics September 25th, 2018

Arrowhead Pharmaceuticals Reports Inducement Grants under NASDAQ Marketplace Rule 5635(c)(4) September 25th, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

Govt.-Legislation/Regulation/Funding/Policy

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Researchers develop microbubble scrubber to destroy dangerous biofilms September 19th, 2018

Researchers managed to prevent the disappearing of quantum information September 14th, 2018

New photonic chip promises more robust quantum computers September 14th, 2018

Nanomedicine

Arrowhead Pharmaceuticals to Host R&D Day on Emerging Pipeline of RNAi Therapeutics September 25th, 2018

Arrowhead Pharmaceuticals to Host R&D Day on Emerging Pipeline of RNAi Therapeutics September 25th, 2018

Arrowhead Pharmaceuticals Reports Inducement Grants under NASDAQ Marketplace Rule 5635(c)(4) September 25th, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

Discoveries

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

Silver nanoparticles are toxic for aquatic organisms: A research team at the UPV/EHU-University of the Basque Country has analysed how zebrafish are affected in the long term by exposure to silver particles September 19th, 2018

Announcements

Arrowhead Pharmaceuticals to Host R&D Day on Emerging Pipeline of RNAi Therapeutics September 25th, 2018

Arrowhead Pharmaceuticals to Host R&D Day on Emerging Pipeline of RNAi Therapeutics September 25th, 2018

Arrowhead Pharmaceuticals Reports Inducement Grants under NASDAQ Marketplace Rule 5635(c)(4) September 25th, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Searching for errors in the quantum world September 21st, 2018

Viral RNA sensing: Optical detection of picomolar concentrations of RNA using switches in plasmonic chirality September 21st, 2018

UT engineers develop first method for controlling nanomotors: Breakthrough for nanotechnology as UT engineers develop first method for switching the mechanical motion of nanomotors September 21st, 2018

NUS researchers invent new test kit for quick, accurate and low-cost screening of diseases: Test results are denoted by a color change and could be further analyzed by a smartphone app, making it attractive as a point-of-care diagnostic device September 19th, 2018

Military

Ultracold atoms used to verify 1963 prediction about 1D electrons: Rice University, University of Geneva study focuses on theory that's increasingly relevant to chipmakers September 5th, 2018

Neutrophil nanosponges soak up proteins that promote rheumatoid arthritis September 3rd, 2018

Virginia Tech researchers develop novel process to 3D print one of the strongest materials on Earth August 23rd, 2018

Biomimetic micro/nanoscale fiber reinforced composites August 10th, 2018

Photonics/Optics/Lasers

Halas wins American Chemical Society Award in Colloid Chemistry: Rice University nanophotonics pioneer honored for colloid research September 18th, 2018

Tiny camera lens may help link quantum computers to network September 14th, 2018

New photonic chip promises more robust quantum computers September 14th, 2018

Laser sintering optimized for printed electronics: New study sheds (laser) light on the best means of laying down thin-film circuitry September 13th, 2018

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



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project