Featured Research

from universities, journals, and other organizations

Manchester Physicists Pioneer New Super-thin Technology

Date:
March 4, 2007
Source:
University of Manchester
Summary:
Researchers have used the world's thinnest material to create a new type of technology, which could be used to make super-fast electronic components and speed up the development of drugs.

Atomic gauze hanging on a scaffold of golden wires. (Credit: Image courtesy of University of Manchester)
Credit: Image courtesy of University of Manchester

Researchers have used the world's thinnest material to create a new type of technology, which could be used to make super-fast electronic components and speed up the development of drugs.

Physicists at The University of Manchester and The Max-Planck Institute in Germany have created a new kind of a membrane that is only one atom thick.

It's believed this super-small structure can be used to sieve gases, make ultra-fast electronic switches and image individual molecules with unprecedented accuracy.

The findings of the research team is published in the journal Nature.

Two years ago, scientists discovered a new class of materials that can be viewed as individual atomic planes pulled out of bulk crystals.

These one-atom-thick materials and in particular graphene -- a gauze of carbon atoms resembling chicken wire -- have rapidly become one of the hottest topics in physics.

However, it has remained doubtful whether such materials can exist in the free state, without being placed on top of other materials.

Now an international research team, led by Dr Jannik Meyer of The Max-Planck Institute in Germany and Professor Andre Geim of The University of Manchester has managed to make free-hanging graphene.

The team used a combination of microfabrication techniques used, for example, in the manufacturing of microprocessors.

A metallic scaffold was placed on top of a sheet of graphene, which was placed on a silicon chip. The chip was then dissolved in acids, leaving the graphene hanging freely in air or a vacuum from the scaffold.

The resulting membranes are the thinnest material possible and maintain a remarkably high quality.

Professor Geim -- who works in the School of Physics and Astronomy at The University of Manchester -- and his fellow researchers have also found the reason for the stability of such atomically-thin materials, which were previously presumed to be impossible.

They report that graphene is not perfectly flat but instead gently crumpled out of plane, which helps stabilise otherwise intrinsically unstable ultra-thin matter.

Professor Geim and his colleagues believe that the membranes they have created can be used like sieves, to filter light gases through the atomic mesh of the chicken wire structure, or to make miniature electro-mechanical switches.

It's also thought it may be possible to use them as a non-obscuring support for electron microscopy to study individual molecules.

This has significant implications for the development of medical drugs, as it will potentially allow the rapid analysis of the atomic structures of bio-active complex molecules.

"This is a completely new type of technology -- even nanotechnology is not the right word to describe these new membranes," said Professor Geim.

"We have made proof-of-concept devices and believe the technology transfer to other areas should be straightforward. However, the real challenge is to make such membranes cheap and readily available for large-scale applications."

In addition to Meyer and Geim, researchers involved in this work include Kostya Novoselov and Tim Booth from The University of Manchester, Mikhail Katsnelson from The University of Nijmegen in the Netherlands, and Sigmar Roth of The Max Plank Institute in Germany.

The research of Professor Geim, Dr Kostya Novoselov and colleagues at the University of Manchester led to the discovery of a new class of materials called two-dimensional atomic crystals back in 2004. Professor Geim was recently awarded the 2007 Mott Medal and Prize by The Institute of Physics for his discovery of graphene and his 'remarkable contribution' to science.


Story Source:

The above story is based on materials provided by University of Manchester. Note: Materials may be edited for content and length.


Cite This Page:

University of Manchester. "Manchester Physicists Pioneer New Super-thin Technology." ScienceDaily. ScienceDaily, 4 March 2007. <www.sciencedaily.com/releases/2007/02/070228170408.htm>.
University of Manchester. (2007, March 4). Manchester Physicists Pioneer New Super-thin Technology. ScienceDaily. Retrieved September 30, 2014 from www.sciencedaily.com/releases/2007/02/070228170408.htm
University of Manchester. "Manchester Physicists Pioneer New Super-thin Technology." ScienceDaily. www.sciencedaily.com/releases/2007/02/070228170408.htm (accessed September 30, 2014).

Share This



More Matter & Energy News

Tuesday, September 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Do Video Games Trump Brain Training For Cognitive Boosts?

Do Video Games Trump Brain Training For Cognitive Boosts?

Newsy (Sep. 29, 2014) More and more studies are showing positive benefits to playing video games, but the jury is still out on brain training programs. Video provided by Newsy
Powered by NewsLook.com
CERN Celebrates 60 Years of Science

CERN Celebrates 60 Years of Science

Reuters - Business Video Online (Sep. 29, 2014) CERN, the European Organisation for Nuclear Research, celebrates 60 years of bringing nations together through science. As Joanna Partridge reports from inside the famous science centre it's also planning to turn the Large Hadron Collider particle accelerator back on after an upgrade. Video provided by Reuters
Powered by NewsLook.com
This 'Invisibility Cloak' Is Simpler Than Most

This 'Invisibility Cloak' Is Simpler Than Most

Newsy (Sep. 28, 2014) Researchers from the University of Rochester have created a type of invisibility cloak with simple focal lenses. Video provided by Newsy
Powered by NewsLook.com
New Corvette Can Secretly Record Convos And Get You Arrested

New Corvette Can Secretly Record Convos And Get You Arrested

Newsy (Sep. 28, 2014) The 2015 Corvette features valet mode – which allows the owner to secretly record audio and video – but in many states that practice is illegal. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins