Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > SuperSTEM research reveals that graphene re-knits its holes

Abstract:
Scientists at The University of Manchester and the SuperSTEM facility at STFC's Daresbury Laboratory have discovered that the ‘miracle material', graphene, undergoes a self repairing process to mend holes. This research, published in Nano Letters (link opens in a new window), could hold the key in the quest to realise graphene's huge potential for use in fields from electronics to medicine.

SuperSTEM research reveals that graphene re-knits its holes

Daresbury, UK | Posted on July 20th, 2012



Graphene, which is made of sheets of carbon just one atom thick, is a promising material for a wide range of future applications due, for instance, to its exceptional electronic properties.

The team, which included Professor Kostya Novoselov, who shared a Nobel Prize
(link opens in a new window) in Physics in 2010 for exploiting the remarkable properties of graphene, was originally looking to gain a deeper understanding into how metals interact with graphene, essential if it is to be integrated into practical electronic devices in the future.

The researchers were using a powerful electron microscope at the SuperSTEM Laboratory at Daresbury, which
allows scientists to study the properties of materials one atom at a time. They recently demonstrated that metals can initiate the formation of holes in the graphene sheet, which could be hugely detrimental to the properties of any graphene-based device.

Surprise results then showed that some of the holes that had been created during this process were actually mending themselves spontaneously using nearby loose carbon atoms to re-knit the graphene structure.

Dr Quentin Ramasse, Scientific Director at SuperSTEM said: "This was a very exciting and unexpected result. The fact that graphene can heal itself under the right conditions may be the difference between a working device and a proof of concept without any real application. We may now have a way of not only drilling through graphene in a controlled fashion to sculpt it at the atomic level, but also to grow it back in new shapes. This adds a lot of flexibility to our nanotechnology toolbox and could pave the way to future technological applications".

####

About STFC
SuperSTEM (link opens in a new window)is the EPSRC National Facility for Aberration Corrected STEM and is run by a consortium of universities, consisting of Leeds, Glasgow, Liverpool, Manchester and Oxford. Other collaboration agreements with the external partner universities Cambridge, Sheffield, Warwick and York will be commencing shortly and the facility has received £4.5M funding from EPSRC.

SuperSTEM consists of a principal site facility hosting two aberration corrected STEM instruments in a purpose-designed building at the STFC Daresbury Laboratory, along with four aberration-corrected STEM instruments located at the consortium universities and further instruments located at the partner universities.

Access to SuperSTEM is free at the point of use for EPSRC eligible UK researchers or RCUK ticket holders. Other access is subject to funding. It also welcomes applications from commercial institutions.

For more information, please click here

Contacts:
Wendy Ellison
Tel: +44 (0)1925 603 232
Mob: +44 (0)7919 548 012

Copyright © STFC

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 Links

View the full paper online here:

Related News Press

News and information

Gold standards for nanoparticles: Understanding how small organic ions stabilize gold nanoparticles may allow for better control March 29th, 2017

Tiny sensor lays groundwork for precision X-rays detection via endoscopy:Nanoscale fiber-integrated X-ray sensor opens new doors for medical imaging and radiotherapy March 29th, 2017

Researchers uncover secret of nanomaterial that makes harvesting sunlight easier March 29th, 2017

Information storage with a nanoscale twist: Discovery of a novel rotational force inside magnetic vortices makes it easier to design ultrahigh capacity disk drives March 28th, 2017

Graphene/ Graphite

Intertronics introduce new nanoparticle deagglomeration technology March 15th, 2017

Space energy technology restored to make power stations more efficient: Scientists use graphene to reinvent abandoned heat energy converter technology March 7th, 2017

Graphene sheets capture cells efficiently: New method could enable pinpoint diagnostics on individual blood cells March 3rd, 2017

Applied Graphene Materials plc - Significant commercial progress in AGM’s three core sectors March 3rd, 2017

Govt.-Legislation/Regulation/Funding/Policy

A big leap toward tinier lines: Self-assembly technique could lead to long-awaited, simple method for making smaller microchip patterns March 27th, 2017

Laser activated gold pyramids could deliver drugs, DNA into cells without harm: Microstructures create temporary pores in cells March 27th, 2017

Cryo-electron microscopy achieves unprecedented resolution using new computational methods March 25th, 2017

Argon is not the 'dope' for metallic hydrogen March 24th, 2017

Chip Technology

Gold standards for nanoparticles: Understanding how small organic ions stabilize gold nanoparticles may allow for better control March 29th, 2017

A big leap toward tinier lines: Self-assembly technique could lead to long-awaited, simple method for making smaller microchip patterns March 27th, 2017

ATTOPSEMI Technology Joins FDXcelerator Program to Deliver Advanced Non-Volatile Memory IP to GLOBALFOUNDRIES 22 FDX® Technology Platform: Leading-edge I-fuse™ brings higher reliability, smaller cell size and ease of programmability for consumer, automotive, and IoT applications March 27th, 2017

Argon is not the 'dope' for metallic hydrogen March 24th, 2017

Nanomedicine

Gold standards for nanoparticles: Understanding how small organic ions stabilize gold nanoparticles may allow for better control March 29th, 2017

Tiny sensor lays groundwork for precision X-rays detection via endoscopy:Nanoscale fiber-integrated X-ray sensor opens new doors for medical imaging and radiotherapy March 29th, 2017

Laser activated gold pyramids could deliver drugs, DNA into cells without harm: Microstructures create temporary pores in cells March 27th, 2017

Researchers make flexible glass for tiny medical devices: Glass can bend over and over again on a nanoscale March 27th, 2017

Nanoelectronics

A big leap toward tinier lines: Self-assembly technique could lead to long-awaited, simple method for making smaller microchip patterns March 27th, 2017

Scientists discover new 'boat' form of promising semiconductor: GeSe Uncommon form attenuates semiconductor's band gap size March 23rd, 2017

UC researchers use gold coating to control luminescence of nanowires: University of Cincinnati physicists manipulate nanowire semiconductors in pursuit of making electronics smaller, faster and cheaper March 17th, 2017

A SOI wafer is a suitable substrate for gallium nitride crystals: Improved characteristics in power electronics and radio applications can be achieved by using a SOI wafer for gallium nitride growth March 4th, 2017

Discoveries

Gold standards for nanoparticles: Understanding how small organic ions stabilize gold nanoparticles may allow for better control March 29th, 2017

Tiny sensor lays groundwork for precision X-rays detection via endoscopy:Nanoscale fiber-integrated X-ray sensor opens new doors for medical imaging and radiotherapy March 29th, 2017

Researchers uncover secret of nanomaterial that makes harvesting sunlight easier March 29th, 2017

Information storage with a nanoscale twist: Discovery of a novel rotational force inside magnetic vortices makes it easier to design ultrahigh capacity disk drives March 28th, 2017

Announcements

Gold standards for nanoparticles: Understanding how small organic ions stabilize gold nanoparticles may allow for better control March 29th, 2017

Tiny sensor lays groundwork for precision X-rays detection via endoscopy:Nanoscale fiber-integrated X-ray sensor opens new doors for medical imaging and radiotherapy March 29th, 2017

Researchers uncover secret of nanomaterial that makes harvesting sunlight easier March 29th, 2017

Information storage with a nanoscale twist: Discovery of a novel rotational force inside magnetic vortices makes it easier to design ultrahigh capacity disk drives March 28th, 2017

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