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

The first light atomic nucleus with a second face July 20th, 2017

Semiliquid chains pulled out of a sea of microparticles July 20th, 2017

Tokyo Institute of Technology research: Antiaromatic molecule displays record electrical conductance July 19th, 2017

Harnessing light to drive chemical reactions July 19th, 2017

Graphene/ Graphite

Scientists produce dialysis membrane made from graphene: Material can filter nanometer-sized molecules at 10 to 100 times the rate of commercial membranes June 29th, 2017

Rice U. chemists create 3-D printed graphene foam June 22nd, 2017

Thought Leaders and Experts Join National Graphene Association Advisory Board June 16th, 2017

Seeing the invisible with a graphene-CMOS integrated device June 6th, 2017

Govt.-Legislation/Regulation/Funding/Policy

The first light atomic nucleus with a second face July 20th, 2017

Semiliquid chains pulled out of a sea of microparticles July 20th, 2017

Here's a tip: Indented cement shows unique properties: Rice University models reveal nanoindentation can benefit crystals in concrete July 20th, 2017

Harnessing light to drive chemical reactions July 19th, 2017

Chip Technology

Semiliquid chains pulled out of a sea of microparticles July 20th, 2017

A firefly's flash inspires new nanolaser light July 18th, 2017

GLOBALFOUNDRIES and VeriSilicon To Enable Single-Chip Solution for Next-Gen IoT Networks: Integrated solution leverages GFs 22FDX technology to decrease power, area, and cost for NB-IoT and LTE-M applications July 14th, 2017

Nanometrics to Announce Second Quarter Financial Results on August 1, 2017 July 14th, 2017

Nanomedicine

Probiotics: Novel biosynthetic tool to develop metallic nanoparticles: This research article by Dr. Nida Akhtar et al has been published in Recent Patents on Drug Delivery & Formulation, Volume 11, Issue 1, 2017 July 20th, 2017

Semiliquid chains pulled out of a sea of microparticles July 20th, 2017

'Upconverted' light has a bright future: Rice University professor developing plasmon-powered devices for medicine, security, solar cells July 17th, 2017

Researchers revolutionize vital conservation tool with use of gold nanotechnology and lasers: Cryopreservation study results have sweeping implications for wildlife conservation and human health July 15th, 2017

Nanoelectronics

Tokyo Institute of Technology research: Antiaromatic molecule displays record electrical conductance July 19th, 2017

A firefly's flash inspires new nanolaser light July 18th, 2017

GLOBALFOUNDRIES and VeriSilicon To Enable Single-Chip Solution for Next-Gen IoT Networks: Integrated solution leverages GFs 22FDX technology to decrease power, area, and cost for NB-IoT and LTE-M applications July 14th, 2017

Thinking thin brings new layering and thermal abilities to the semiconductor industry: In a breakthrough for the semiconductor industry, researchers demonstrate a new layer transfer technique called "controlled spalling" that creates many thin layers from a single gallium nitride July 11th, 2017

Discoveries

The first light atomic nucleus with a second face July 20th, 2017

Semiliquid chains pulled out of a sea of microparticles July 20th, 2017

Here's a tip: Indented cement shows unique properties: Rice University models reveal nanoindentation can benefit crystals in concrete July 20th, 2017

Harnessing light to drive chemical reactions July 19th, 2017

Announcements

Probiotics: Novel biosynthetic tool to develop metallic nanoparticles: This research article by Dr. Nida Akhtar et al has been published in Recent Patents on Drug Delivery & Formulation, Volume 11, Issue 1, 2017 July 20th, 2017

The first light atomic nucleus with a second face July 20th, 2017

Semiliquid chains pulled out of a sea of microparticles July 20th, 2017

Here's a tip: Indented cement shows unique properties: Rice University models reveal nanoindentation can benefit crystals in concrete July 20th, 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