Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > KAIST develops conducting nanowire

Abstract:
Prof. Park Chan-beum's team uses peptide self-assembly tech, publishes study in international journal

KAIST develops conducting nanowire

Korea | Posted on June 30th, 2009

A team of Korean researchers has developed conducting polymer nanowire and nanotube material that employ natural peptide self-assembly technology.

The Korea Advanced Institute of Science and Technology (President Suh Nam-pyo) said on June 15 that a team led by Prof. Park Chan-beum at KAIST's department of materials science and researcher Ryu Jung-ki had published their study on the development of conducting polymer nanowire and nanotube material in Angewandte Chemie, a world-renowned chemistry journal.

Peptides or proteins can create three-dimensional structures through the combination of some 20 amino acids. Such structures have the advantage of outstanding physical characters and diverse functions, which were not available in the original materials.

The research team allowed tens of thousands of very simple peptides comprising two amino acids to align on their own to successfully form a long nanowire one one-thousandth the thickness of a single hair. They then coated the structure with polyaniline, a conducting polymer material, to create a Vertically Well-Aligned conducting Nanowire.

Unlike common electric wires, the Vertically Well-Aligned nanowire only conducts electricity on its surface. Prof. Park's team then selectively removed the peptide core section of the conducting nanowire to produce a conducting nanotube consisting purely of polyaniline.

Creating three-dimensional structures through the self-assembly of chemical substances, a process not unlike building with Lego blocks, not only constitutes a fundamental mechanism within all different biological phenomena, but is also widely sought after as one of the key technologies for producing nanomaterials.

Notably, since the peptide the research team used in the study originated from amyloid plaque in a fabric structure, which is closely related with the development of degenerative diseases including Alzheimer's, the study of the self-assembly of peptides is highly important from a medical perspective as well.

If conducting polymer is produced into a nano-sized structure, its electric characteristic is significantly enhanced. Hence, the newly developed conducting nanowire and nanotube will likely find applications in the development of various next-generation solar cells, sensors and chips, and are expected to help boost Korea's science and technology competitiveness in the areas of nano-bio fusion in the future.

Meanwhile, experts say the newly developed technology has already made important contributions to the development of nanomaterials through the creative fusion of nanotechnology and bioscience.

####

About KAIST
The Korea Institute of Science and Technology (KIST) is a multi-disciplinary research institute located in Seoul, South Korea. Founded in 1966, it was the first multi-disciplinary scientific research institute in Korea and has contributed significantly to the economic development of the country, particularly during the years of accelerated growth in the 1970ís and 1980ís. It has a research staff of over 400 scientists involved in basic research in six research divisions.

From Wikipedia, the free encyclopedia

For more information, please click here

Contacts:
Lim Eun-hee

Copyright © KAIST

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

'Lasers rewired': Scientists find a new way to make nanowire lasers: Berkeley Lab, UC Berkeley scientists adapt next-gen solar cell materials for a different purpose February 12th, 2016

Breaking cell barriers with retractable protein nanoneedles: Adapting a bacterial structure, Wyss Institute researchers develop protein actuators that can mechanically puncture cells February 12th, 2016

Replacement of Toxic Antibacterial Agents Possible by Biocompatible Polymeric Nanocomposites February 12th, 2016

Properties of Polymeric Nanofibers Optimized to Treat Damaged Body Tissues February 12th, 2016

Self Assembly

New type of nanowires, built with natural gas heating: UNIST research team developed a new simple nanowire manufacturing technique February 1st, 2016

Researchers develop completely new kind of polymer: Hybrid polymers could lead to new concepts in self-repairing materials, drug delivery and artificial muscles January 30th, 2016

Polymer nanowires that assemble in perpendicular layers could offer route to tinier chip components January 23rd, 2016

Nanodevice, build thyself: Researchers in Germany studied how a multitude of electronic interactions govern the encounter between a molecule called porphine and copper and silver surfaces January 18th, 2016

Nanomedicine

Breaking cell barriers with retractable protein nanoneedles: Adapting a bacterial structure, Wyss Institute researchers develop protein actuators that can mechanically puncture cells February 12th, 2016

Replacement of Toxic Antibacterial Agents Possible by Biocompatible Polymeric Nanocomposites February 12th, 2016

Properties of Polymeric Nanofibers Optimized to Treat Damaged Body Tissues February 12th, 2016

SLAC X-ray laser turns crystal imperfections into better images of important biomolecules: New method could remove major obstacles to studying structures of complex biological machines February 11th, 2016

Announcements

Graphene leans on glass to advance electronics: Scientists' use of common glass to optimize graphene's electronic properties could improve technologies from flat screens to solar cells February 12th, 2016

Breaking cell barriers with retractable protein nanoneedles: Adapting a bacterial structure, Wyss Institute researchers develop protein actuators that can mechanically puncture cells February 12th, 2016

Replacement of Toxic Antibacterial Agents Possible by Biocompatible Polymeric Nanocomposites February 12th, 2016

Properties of Polymeric Nanofibers Optimized to Treat Damaged Body Tissues February 12th, 2016

Nanobiotechnology

Breaking cell barriers with retractable protein nanoneedles: Adapting a bacterial structure, Wyss Institute researchers develop protein actuators that can mechanically puncture cells February 12th, 2016

Replacement of Toxic Antibacterial Agents Possible by Biocompatible Polymeric Nanocomposites February 12th, 2016

Properties of Polymeric Nanofibers Optimized to Treat Damaged Body Tissues February 12th, 2016

SLAC X-ray laser turns crystal imperfections into better images of important biomolecules: New method could remove major obstacles to studying structures of complex biological machines February 11th, 2016

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







Car Brands
Buy website traffic