Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

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

Self-assembling particles brighten future of LED lighting January 18th, 2017

Manchester scientists tie the tightest knot ever achieved January 13th, 2017

Captured on video: DNA nanotubes build a bridge between 2 molecular posts: Research may lead to new lines of direct communication with cells January 9th, 2017

Researchers fabricate high performance Cu(OH)2 supercapacitor electrodes December 29th, 2016

Discoveries

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

Explaining how 2-D materials break at the atomic level January 20th, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 2017

Announcements

A toolkit for transformable materials: How to design materials with reprogrammable shape and function January 20th, 2017

New research helps to meet the challenges of nanotechnology: Research helps to make the most of nanoscale catalytic effects for nanotechnology January 20th, 2017

Ultra-precise chip-scale sensor detects unprecedentedly small changes at the nanoscale January 20th, 2017

Chemists Cook up New Nanomaterial and Imaging Method: Nanomaterials can store all kinds of things, including energy, drugs and other cargo January 19th, 2017

Events/Classes

Nanometrics to Announce Fourth Quarter and Full Year Financial Results on February 7, 2017 January 19th, 2017

Harris & Harris Group Issues Reminder for Shareholder Update Call on January 10, 2017 January 10th, 2017

Nanometrics to Present at the 19th Annual Needham Growth Conference December 22nd, 2016

Leti Will Demonstrate Fusion of Autonomous Carís Senses: SIGMA FUSIONís Efficient, Sensor-based System Fits in a Microcontroller Platform, Anticipates Safety Requirements December 13th, 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