Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > New synthetic self-assembling macromolecules mimic nature

Abstract:
We take "self-assembly" for granted when it is carried out by the biopolymers which comprise our hair, teeth, or skin. But when scientists devise new ways for molecules to self-assemble into new materials, it is an important achievement.

New synthetic self-assembling macromolecules mimic nature

BLACKSBURG, VA | Posted on March 23rd, 2007

Researchers with the Macromolecules and Interfaces Institute (MII) at Virginia Tech report such a development in the online issue of the Journal of the American Chemical Society in the article, "Aggregation of Rod-Coil Block Copolymers Containing Rigid Polyampholyte Blocks in Aqueous Solution" (10.1021/ja070422+ http://dx.doi.org/10.1021/ja070422+ ) and at the 233rd National Meeting of the American Chemical Society (ACS) in Chicago, March 25-29.

S. Richard Turner, MII director and research professor of chemistry at Virginia Tech, and Min Mao, a Ph.D. candidate in polymer chemistry, report the synthesis of a new family of charged, rod-like block copolymers. No longer than a fraction of the diameter of human hair, the tiny rods can be either positive or negative, or can have alternating positive and negative charges along the backbone. The rods self-assemble and the aggregated structures are remarkably stable in saline solution, Turner said.

"The early results of this study suggest that these charged polymers self-assemble by like-charge interactions similar to such natural polymers as DNA," said Turner. "The stable self-assembled structures could have potential applications in drug delivery and gene delivery systems."

But more immediate, "These unique block copolymers can be instructive models in understanding the forces that lead to the dense packing of DNA when complexed with viruses and other polymers," he said.

The ACS poster, "Stimulus Responsive Aggregation in Aqueous Solution of a Novel Rod-Coil Type Double Hydrophilic Block Copolymer Containing Rigid Strictly Alternating Polyampholytes" (PMSE 314), will be presented from 6 to 8 p.m. on Tuesday, March 27, at the Hyatt Regency Chicago Riverside Center as part of the joint PMSE-Polymer poster session.

Mao, who is a graduate research assistant in polymer chemistry and physics, received his bachelor of science in chemistry and master of science in surfactant, colloid, and surface science from Peking University, Beijing,

The research is supported by the Department of Chemistry at Virginia Tech and a grant from the ACS Petroleum Research Fund.

####

About Virginia Tech
Founded in 1872 as a land-grant college named Virginia Agricultural and Mechanical College, Virginia Tech is now a comprehensive, innovative research university with the largest full-time student population in Virginia. Through a combination of its three missions of learning, discovery, and engagement, Virginia Tech continually strives to accomplish the charge of its motto: Ut Prosim (That I May Serve).

For more information, please click here

Contacts:
Susan Trulove
(540) 231-05646

Copyright © Virginia Tech

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

Self Assembly

Big Results Require Big Ambitions: Three young UCSB faculty receive CAREER awards from the National Science Foundation September 18th, 2014

Rice rolls 'neat' nanotube fibers: Rice University researchers' acid-free approach leads to strong conductive carbon threads September 15th, 2014

Molecular self-assembly controls graphene-edge configuration September 10th, 2014

Rice chemist wins rare NSF Special Creativity Award: Grant extension will bolster Zubarev's effort to produce gold nanorods September 8th, 2014

Discoveries

Chemical interactions between silver nanoparticles and thiols: A comparison of mercaptohexanol again September 30th, 2014

A Heartbeat Away? Hybrid "Patch" Could Replace Transplants: TAU researcher harnesses gold nanoparticles to engineer novel biocompatible cardiac patch September 30th, 2014

Iranian Scientists Determine Grain Size, Minimize Time of Nanocomposite Synthesis September 29th, 2014

Nanoparticles Used to Improve Quality of Bone Cement September 29th, 2014

Announcements

Chemical interactions between silver nanoparticles and thiols: A comparison of mercaptohexanol again September 30th, 2014

A Heartbeat Away? Hybrid "Patch" Could Replace Transplants: TAU researcher harnesses gold nanoparticles to engineer novel biocompatible cardiac patch September 30th, 2014

Iranian Scientists Determine Grain Size, Minimize Time of Nanocomposite Synthesis September 29th, 2014

Nanoparticles Used to Improve Quality of Bone Cement September 29th, 2014

Events/Classes

Oxford Instruments launches 3rd annual Indian nanotechnology seminars in Kolkata and Delhi - sharing expertise with Nanotechnology researchers in India September 25th, 2014

Grenoble Hosting SEMICON Europa Oct. 7-9, First Time Event Held in France: Letiís 90-square-meter Booth Will Feature Portable Showroom To Demonstrate New Technology Innovations September 24th, 2014

Contributing to the spirit of the IYCR 2014 September 24th, 2014

BSA Distinguished Lecture Tuesday, 10/14: 'LCLS: A Stunning New View Through X-ray Laser Eyes' September 23rd, 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