Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Research by CU-Boulder physicists creates ‘recipe book’ for building new materials

This image shows polarized light interacting with a particle injected into a liquid crystal medium. Photo by CU-Boulder scientists Bohdan Senyuk and Ivan Smalyukh.
This image shows polarized light interacting with a particle injected into a liquid crystal medium.

Photo by CU-Boulder scientists Bohdan Senyuk and Ivan Smalyukh.

Abstract:
By showing that tiny particles injected into a liquid crystal medium adhere to existing mathematical theorems, physicists at the University of Colorado Boulder have opened the door for the creation of a host of new materials with properties that do not exist in nature.

Research by CU-Boulder physicists creates ‘recipe book’ for building new materials

Boulder, CO | Posted on December 28th, 2012

The findings show that researchers can create a "recipe book" to build new materials of sorts using topology, a major mathematical field that describes the properties that do not change when an object is stretched, bent or otherwise "continuously deformed." Published online Dec. 23 in the journal Nature, the study also is the first to experimentally show that some of the most important topological theorems hold up in the real material world, said CU-Boulder physics department Assistant Professor Ivan Smalyukh, a study senior author.

The research could lead to upgrades in liquid crystal displays, like those used in laptops and television screens, to allow them to interact with light in new and different ways. One possibility is to create liquid crystal displays that are even more energy efficient, Smalyukh said, extending the battery life for the devices they're attached to.

The research was funded in part by Smalyukh's Presidential Early Career Award for Scientists and Engineers, which he received from President Barack Obama in 2010. And the research supports the goals laid out by the White House's Materials Genome Initiative, Smalyukh said, which seeks to deploy "new advanced materials at least twice as fast as possible today, at a fraction of the cost."

Smalyukh, postdoctoral researcher Bohdan Senyuk, and doctoral student Qingkun Liu set up the experiment by creating colloids — solutions in which tiny particles are dispersed, but not dissolved, throughout a host medium. Colloids are common in everyday life and include substances such as milk, jelly, paint, smoke, fog and shaving cream.

For this study, the physicists created a colloid by injecting tiny particles into a liquid crystal — a substance that behaves somewhat like a liquid and somewhat like a solid. The researchers injected differently shaped particles that represent fundamental building-block shapes in topology. That means each of the particles is distinct from the others and one cannot be turned into the other without cutting or gluing. Objects that look differently can still be considered the same in topology if one can be turned into the other by stretching or bending - types of "continuous deformations."

In the field of topology, for example, an object shaped like a donut and an object shaped like a coffee cup are treated the same. That's because a donut shape can be "continuously deformed" into a coffee cup by indenting one side of the donut. But a donut-shaped object cannot be turned into a sphere or a cylinder because the hole in the donut would have to be eliminated by "gluing" the sides of the donut back together or by "cutting" the side of the donut.

Once injected into a liquid crystal, the particles behaved as predicted by topology. "Our study shows that interaction between particles and molecular alignment in liquid crystals follows the predictions of topological theorems, making it possible to use these theorems in designing new composite materials with unique properties that cannot be encountered in nature or synthesized by chemists," Smalyukh said. "These findings lay the groundwork for new applications in experimental studies of low-dimensional topology, with important potential ramifications for many branches of science and technology."

The study was co-authored by Sailing He of Zhejiang University in China; Randall Kamien and Tom Lubensky of the University of Pennsylvania, and Robert Kusner of the University of Massachusetts, Amherst.

####

For more information, please click here

Contacts:
Ivan Smalyukh

303-492-7277

Laura Snider
CU media relations
303-735-0528

Copyright © University of Colorado at Boulder

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

Display technology/LEDs/SS Lighting/OLEDs

Visualizing interacting electrons in a molecule: Scientists at Aalto University and the University of Zurich have succeeded in directly imaging how electrons interact within a single molecule January 26th, 2015

News and information

Nanoparticles Increase Durability of Concrete Decorations in Cold Areas January 26th, 2015

Iranian Researchers Boost Solar Cells Efficiency Using Anti-Aggregates January 26th, 2015

Detection of Heavy Metals in Samples with Naked Eye January 26th, 2015

Engineering self-assembling amyloid fibers January 26th, 2015

Govt.-Legislation/Regulation/Funding/Policy

Nanoshuttle wear and tear: It's the mileage, not the age January 26th, 2015

Visualizing interacting electrons in a molecule: Scientists at Aalto University and the University of Zurich have succeeded in directly imaging how electrons interact within a single molecule January 26th, 2015

The latest fashion: Graphene edges can be tailor-made: Rice University theory shows it should be possible to tune material's properties January 24th, 2015

Scientists 'bend' elastic waves with new metamaterials that could have commercial applications: Materials could benefit imaging and military enhancements such as elastic cloaking January 23rd, 2015

Discoveries

Visualizing interacting electrons in a molecule: Scientists at Aalto University and the University of Zurich have succeeded in directly imaging how electrons interact within a single molecule January 26th, 2015

Electronic circuits with reconfigurable pathways closer to reality January 26th, 2015

Nanoparticles Increase Durability of Concrete Decorations in Cold Areas January 26th, 2015

Iranian Researchers Boost Solar Cells Efficiency Using Anti-Aggregates January 26th, 2015

Materials/Metamaterials

Chromium-centered cycloparaphenylene rings for making functionalized nanocarbons January 26th, 2015

Engineering self-assembling amyloid fibers January 26th, 2015

Toyocolor to Launch New Carbon Nanotube Materials at nano tech 2015 January 24th, 2015

The latest fashion: Graphene edges can be tailor-made: Rice University theory shows it should be possible to tune material's properties January 24th, 2015

Announcements

Nanoparticles Increase Durability of Concrete Decorations in Cold Areas January 26th, 2015

Iranian Researchers Boost Solar Cells Efficiency Using Anti-Aggregates January 26th, 2015

Detection of Heavy Metals in Samples with Naked Eye January 26th, 2015

Engineering self-assembling amyloid fibers January 26th, 2015

Grants/Awards/Scholarships/Gifts/Contests/Honors/Records

OCSiAl supports NanoART Imagery Contest January 23rd, 2015

EnvisioNano: An image contest hosted by the National Nanotechnology Initiative (NNI) January 22nd, 2015

Laser-generated surface structures create extremely water-repellent metals: Super-hydrophobic properties could lead to applications in solar panels, sanitation and as rust-free metals January 20th, 2015

NREL Scientist Brian Gregg Named AAAS Fellow: Gregg honored for distinguished contributions to the field of organic solar photoconversion January 20th, 2015

Research partnerships

Visualizing interacting electrons in a molecule: Scientists at Aalto University and the University of Zurich have succeeded in directly imaging how electrons interact within a single molecule January 26th, 2015

Promising use of nanodiamonds in delivering cancer drug to kill cancer stem cells: NUS study shows that delivery of Epirubicin by nanodiamonds resulted in a normally lethal dosage of Epirubicin becoming a safe and effective dosage for treatment of liver cancer January 26th, 2015

Wearable sensor clears path to long-term EKG, EMG monitoring January 20th, 2015

Graphene enables all-electrical control of energy flow from light emitters: First signatures of graphene plasmons at telecommunications wavelength revealed January 20th, 2015

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 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE