Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Chemists seek light-activated glue for vascular repair

31.03.2004


Surgeons battle time and the body’s defenses as they stitch together veins and arteries, whether after an injury or in the course of such treatments as transplants or bypasses. Loss of blood before a site is closed and too much clotting soon after challenge medical care.

Virginia Tech researchers are creating biocompatible adhesives for use with vascular tissue that will speed the process of mending tissue. They will present the research at the 227th annual meeting of the American Chemical Society in Anaheim, Calif., March 28 through April 1, 2004.

The goal is to make it possible for surgeons to splice, reattach, or mend vascular tissue by applying a biopolymer coating and activating it with light, such as a laser, explains Timothy Long of Blacksburg, professor of chemistry in the College of Science at Virginia Tech. Another use would be as a stable, easy-to-use material that medics could apply to stop bleeding and prevent clotting.



Chemistry doctoral student Afia S. Karikari will explain the structure and characteristics of the novel polymer, how light causes it to change shape and function, and what the researchers have determined about the properties of several compounds that are candidates for a material that could make laser assisted vascular repair possible.

Karikari, a Packard Fellow, is a graduate of Clark Atlanta University. A native of Ghana, West Africa, she moved to the United States with her family and attended Pebblebrook High School in Mableton, Ga.

She will present the paper, "Photocrosslinking of star-shaped poly(d,l-lactide)s containing an ethoxylate core (Poly 368)" at 8:50 a.m. Tuesday, March 30, 2004, in the Garden B room of the Anaheim Coast Hotel. Co-authors are Craig Thatcher, professor and department head of large animal clinical sciences in the Virginia–Maryland Regional College of Veterinary Medicine, and Long.


Contact for more information: Dr. Timothy E. Long at telong@vt.edu or 540-231-2480
Learn more about Ms Karikari at http://www.technews.vt.edu/Archives/2001/Oct/01395.html

Susan Trulove | EurekAlert!
Further information:
http://www.technews.vt.edu/
http://www.technews.vt.edu/Archives/2001/Oct/01395.html

More articles from Health and Medicine:

nachricht Cholesterol-lowering drugs may fight infectious disease
22.08.2017 | Duke University

nachricht Once invincible superbug squashed by 'superteam' of antibiotics
22.08.2017 | University at Buffalo

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

What the world's tiniest 'monster truck' reveals

23.08.2017 | Life Sciences

Treating arthritis with algae

23.08.2017 | Life Sciences

Witnessing turbulent motion in the atmosphere of a distant star

23.08.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>