Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientists unveil first method for controlling the growth of metal crystals

28.05.2014

Researchers have announced the first ever method for controlling the growth of metal-crystals from single atoms.

Published in the journal Nature Communications and developed at the University of Warwick, the method, called Nanocrystallometry, allows for the creation of precise components for use in nanotechnology.

Professor Peter Sadler from the University's Department of Chemistry commented that "The breakthrough with Nanocrystallometry is that it actually allows us to observe and directly control the nano-world in motion".

Using a doped-graphene matrix to slow down and then trap atoms of the precious metal osmium the researchers were able to control and quantify the growth of metal-crystals. When the trapped atoms come into contact with further osmium atoms they bind together, eventually growing into 3D metal-crystals.

"Tailoring nanoscopic objects is of enormous importance for the production of the materials of the future", says Dr Barry from the University's Department of Chemistry. "Until now the formation of metal nanocrystals, which are essential to those future materials, could not be controlled with precision at the level of individual atoms, under mild and accessible conditions."

Prof. Sadler says: "Nanocrystallometry's significance is that it has made it possible to grow with precision metal-crystals which can be as small as only 0.00000015cm, or 15 ångström, wide. If a nanodevice requires a million osmium atoms then from 1 gram of osmium we can make about 400 thousand devices for every person on this earth. Compared to existing methods of crystal growth Nanocrystallometry offers a significant improvement in the economic and efficient manufacture of precision nanoscopic objects."

The researchers argue that the new method possesses a range of potential uses. "We envision the use Nanocrystallometry to build precise, atomic-level electronic circuits and new nano-information storage devices. The method also has significant potential for use in the biosensing of drugs, DNA and gases as well for creating unique nano-patterns on surfaces for security labelling and sealing confidential documents. Nanocrystallometry is also an innovative method for producing new metal nano-alloys, and many combinations can be envisaged. They may have very unusual and as yet unexplored properties", commented Dr Barry.

Nanocrystallometry was made possible by state-of-the-art facilities that are only to be found in the UK at the University of Warwick. "The advances in have been made possible thanks to our use of a state-of-the-art aberration-corrected high-resolution transmission electron microscope, the only one microscope of this kind in the UK, that has the potential to image individual atoms in this way. We know that things are made of atoms, but it is really rare to see them dancing in front of your eyes", says Dr Richard Beanland from the University's Department of Physics.

Commenting on the commercial potential for Nanocrystallometry Andrew Lee, Business Development Manager at Warwick Ventures said: "We think that the team's technique could be a real break-through in terms of offering the capability for micromanipulation and derivatization of a graphene surface; seeing multiple commercial opportunities arising in the future. We have put a patent application in place and we are actively seeking industrial partners with whom to collaborate in the future."

Tom Frew | Eurek Alert!
Further information:
http://www.warwick.ac.uk

Further reports about: Warwick crystals materials osmium state-of-the-art

More articles from Process Engineering:

nachricht No compromises: Combining the benefits of 3D printing and casting
23.03.2018 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA

nachricht Intelligent wheelchairs, predictive prostheses
20.12.2017 | Fraunhofer-Institut für Produktionstechnik und Automatisierung IPA

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Spider silk key to new bone-fixing composite

University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.

Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.

Im Focus: Writing and deleting magnets with lasers

Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.

Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...

Im Focus: Gamma-ray flashes from plasma filaments

Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.

The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...

Im Focus: Basel researchers succeed in cultivating cartilage from stem cells

Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.

Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...

Im Focus: Like a wedge in a hinge

Researchers lay groundwork to tailor drugs for new targets in cancer therapy

In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

IWOLIA: A conference bringing together German Industrie 4.0 and French Industrie du Futur

09.04.2018 | Event News

 
Latest News

Magnetic nano-imaging on a table top

20.04.2018 | Physics and Astronomy

Start of work for the world's largest electric truck

20.04.2018 | Interdisciplinary Research

Atoms may hum a tune from grand cosmic symphony

20.04.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>