Navigation Links
York researchers discover important mechanism behind nanoparticle reactivity
Date:11/3/2013

icle than on a bulk single crystal of iron in fact many orders of magnitude quicker. Analysis showed there was an astonishing amount of strain and bending in nanoparticles which would lead to defects in bulk material."

The scientists used a method known as Z-contrast imaging to examine the oxide layer that forms around a nanoparticle after exposure to the atmosphere, and found that within two years the particles were completely oxidised.

Corresponding author Dr Andrew Pratt, from York's Department of Physics and Japan's National Institute for Materials Science, said: "Oxidation can drastically alter a nanomaterial's properties - for better or worse - and so understanding this process at the nanoscale is of critical importance. This work will therefore help those seeking to use metallic nanoparticles in environmental and technological applications as it provides a deeper insight into the changes that may occur over their desired functional lifetime."

The experimental work was carried out at the York JEOL Nanocentre and the Department of Physics at the University of York, the Department of Physics and Astronomy at the University of Leicester and the Frederick-Seitz Institute for Materials Research at the University of Illinois at Urbana-Champaign.

The scientists obtained images over a period of two years. After this time, the iron nanoparticles, which were originally cube-shaped, had become almost spherical and were completely oxidised.

Professor Chris Binns, from the University of Leicester, said: "For many years at Leicester we have been developing synthesis techniques to produce very well-defined nanoparticles and it is great to combine this technology with the excellent facilities and expertise at York to do such penetrating science. This work is just the beginning and we intend to capitalise on our complementary abilities to initiate a wider collaborative programme."


'/>"/>

Contact: Caron Lett
pressoffice@york.ac.uk
44-190-432-2029
University of York
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Researchers discover how retinal neurons claim the best brain connections
2. Researchers measure flow from a nanoscale fluid jet
3. Researchers advance scheme to design seamless integrated circuits etched on graphene
4. Harvard researchers, pharma experts offer recommendations to expand access to clinical trial data
5. Virginia Tech researchers publish study on jellyfish energy consumption that will improve bio-inspired robotic designs for Navy
6. Spanish researchers sequence non-infiltrating bladder cancer exome
7. Researchers discover and treat toxic effects of ALS mutation in neurons made from patients skin cells
8. Researchers advance toward engineering wildly new genome
9. Researchers use nanoparticles to deliver vaccines to lungs
10. UCLA researchers smartphone microscope can detect a single virus, nanoparticles
11. Researchers produce nanostructures with potential to advance energy devices
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/4/2015)... MEMPHIS, Tenn. , May 4, 2015 /PRNewswire-USNewswire/ ... have developed a significantly better computer tool for ... in many cancers but were difficult to identify ... the scientific journal Nature Methods . ... short for Copy Number Segmentation by Regression Tree ...
(Date:5/4/2015)... 2015 /PRNewswire/ - Fluorinov Pharma (Fluorinov), a FACIT ... of Dr. Roger J Garceau, to its Board ... in matters including corporate development and clinical strategy, ... significant regulatory expertise as Fluorinov transitions to clinical ... years of pharmaceutical development experience to Fluorinov and ...
(Date:5/4/2015)... Achieved primarily through a proprietary paraffin and ... to 100x better detail than the industry standard. ... light microscopy methods, it needed another medium to measure ... frame of reference because it represents the highest standard ... the earliest discovery days of Ultralight Histology was to ...
(Date:5/4/2015)... WASHINGTON , May 4, 2015   ... announced updated interim data from Tocagen,s ongoing investigational ... Satellite Symposium of the American Association of Neurological ... Tumors, held May 1-2, 2015, in ... the company held a meeting with FDA and ...
Breaking Biology Technology:Scientists dramatically improve method for finding common genetic alterations in tumors 2Scientists dramatically improve method for finding common genetic alterations in tumors 3Scientists dramatically improve method for finding common genetic alterations in tumors 4Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 2Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 3Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 2Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 3Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 4Tocagen Presents Updated Interim Survival Data from Ongoing Clinical Studies at American Association of Neurological Surgeons (AANS)/Congress of Neurological Surgeons (CNS) Section on Tumors 5
... , , , , , , ... EUCODIS Bioscience, a company,providing customized enzymes to the pharmaceutical, chemical, and ... EUR 2,million from existing shareholders. , ... enzyme families to,its product portfolio and to accelerate the development of ...
... available in German . , A mystical ... out of nowhere. And a light source is invisible ... the source of the apparently supernatural illumination become visible: a ... infinitesimal lens structures measuring only a few hundred nanometers, et ...
... , EMERYVILLE, Calif. , Feb. 2 ... will present at the 12th Annual BIO CEO & Investor Conference ... Eastern Time ( 5:30 a.m. Pacific Time ).  Interested parties ... at: , http://www.onyx-pharm.com/view.cfm/32/Event-Calendar , It is recommended that ...
Cached Biology Technology:EUCODIS Bioscience Receives EUR 2 Million Cash Injection to Enlarge Product Portfolio and Develop International Markets 2EUCODIS Bioscience Receives EUR 2 Million Cash Injection to Enlarge Product Portfolio and Develop International Markets 3Nano for the senses 2Nano for the senses 3Onyx Pharmaceuticals to Present at the 12th Annual BIO CEO & Investor Conference 2
(Date:3/26/2015)... March 26, 2015 The Granite ... recreation and athletic club, today announced it has implemented ... freedom of movement for members and staff, while restricting ... comprehensive process, we selected FST,s IMID Access system because ... for our members and staff, in addition to unparalleled ...
(Date:3/23/2015)... SoundView Technology Group issues a new research update ... Wocket smart wallet. SoundView was one of the selected user groups ... the Wocket in multiple scenarios and outlets. ... retailers, making both debit and credit card payments.  ... the company meets their plans in 2015, it would push ...
(Date:3/20/2015)... Markets ( http://www.researchandmarkets.com/research/rswjb4/hand_geometry ) has announced the addition ... report to their offering. This report analyzes ... report provides separate comprehensive analytics for the US, ... Europe , Asia-Pacific , ... Annual estimates and forecasts are provided for the period 2013 ...
Breaking Biology News(10 mins):Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 2Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 3Hand Geometry - Global Strategic Business Report 2015: An Essential Security Component for both Government & Enterprise Sector 4
... Topics include: discovery of Sudbury impact event debris ... modern humans out of Africa; relationship of mantle ... fault system activity and the eastern California shear ... the Great Barrier Reef. An open-access Research Focus ...
... Streams, lakes, and bays may soon be cleaner thanks ... developed at Virginia Tech and funded by the U.S. ... application will help engineers and planners select the most ... Practices (BMPs) of controlling the amount of pollutants ...
... frog was recently discovered in a remote mountainous region ... by the Conservation Leadership Programme (CLP). The new frog, ... the name the ?golden frog of Supat. Originally, ... several other common species in the area. However, after ...
Cached Biology News:September Geology and GSA Today media highlights 2September Geology and GSA Today media highlights 3September Geology and GSA Today media highlights 4September Geology and GSA Today media highlights 5September Geology and GSA Today media highlights 6September Geology and GSA Today media highlights 7September Geology and GSA Today media highlights 8September Geology and GSA Today media highlights 9September Geology and GSA Today media highlights 10September Geology and GSA Today media highlights 11September Geology and GSA Today media highlights 12Innovative civil engineering application promises cleaner waters 2Innovative civil engineering application promises cleaner waters 3
... a molecular screening, low melting point agarose ... It is recommended for separation of nucleic ... as PCR products. Micro ABgarose is also ... recommended for blotting techniques. At a 3% ...
Rabbit polyclonal to L Kynurenine ( Abpromise for all tested applications). Antigen: Synthetic peptide L Kynurenine conjugated to a protein carrier. Entrez Gene ID: 8942 Swiss Protein ID...
Sheep polyclonal to Salmonella Shoreditch ( Abpromise for all tested applications). Antigen: Native Salmonella shoreditch (Group D2)....
Sheep polyclonal to Salmonella Thomasville ( Abpromise for all tested applications). Antigen: Native Salmonella thomasville...
Biology Products: