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

An international team of researchers has used pioneering electron microscopy techniques to discover an important mechanism behind the reaction of metallic nanoparticles with the environment.

Crucially, the research led by the University of York and reported in Nature Materials, shows that oxidation of metals - the process that describes, for example, how iron reacts with oxygen, in the presence of water, to form rust - proceeds much more rapidly in nanoparticles than at the macroscopic scale. This is due to the large amount of strain introduced in the nanoparticles due to their size which is over a thousand times smaller than the width of a human hair.

Improving the understanding of metallic nanoparticles particularly those of iron and silver - is of key importance to scientists because of their many potential applications. For example, iron and iron oxide nanoparticles are considered important in fields ranging from clean fuel technologies, high density data storage and catalysis, to water treatment, soil remediation, targeted drug delivery and cancer therapy.

The research team, which also included scientists from the University of Leicester, the National Institute for Materials Science, Japan and the University of Illinois at Urbana-Champaign, USA, used the unprecedented resolution attainable with aberration-corrected scanning transmission electron microscopy to study the oxidisation of cuboid iron nanoparticles and performed strain analysis at the atomic level.

Lead investigator Dr Roland Krger, from the University of York's Department of Physics, said: "Using an approach developed at York and Leicester for producing and analysing very well-defined nanoparticles, we were able to study the reaction of metallic nanoparticles with the environment at the atomic level and to obtain information on strain associated with the oxide shell on an iron core.

"We found that the oxide film grows much faster on a nanopart
'/>"/>

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:1/23/2015)... Portal Solutions , a technology consulting firm that designs ... and SharePoint platforms , today announces its inclusion in Washington ... the region’s fastest-growing mid-sized companies based on a combined three-year ... recognized a second year in a row by SmartCEO is ...
(Date:1/22/2015)... 2015  Transwestern | RBJ today announces the firm brokered a ... Shire a leading biopharmaceutical company, at Two Ledgemont Center in ... Robert Richards , president, and Brian Cohen , senior ... five-floor building at 95 Hayden Ave. Photo - ...
(Date:1/22/2015)... Pipette.com has added the Eppendorf Centrifuge ... of Eppendorf products. , The Eppendorf Centrifuge 5424/5424 R ... R and receive the following:, ,     Free ... Eppendorf Reference 2 ,     3 Free boxes ...
(Date:1/22/2015)... (PRWEB) January 22, 2015 Diagenode, ... such as the Bioruptor® and complete solutions for ... for chromatin immunoprecipitation, alleviating the need for manual ... controls needed for ChIP of histones or transcription ...
Breaking Biology Technology:Washington SmartCEO Announces Portal Solutions as 2015 Future 50 Award Winner Second Year in a Row 2Washington SmartCEO Announces Portal Solutions as 2015 Future 50 Award Winner Second Year in a Row 3Transwestern?RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Eppendorf Announces Promotional Bundle Which Includes: Eppendorf Centrifuge 5424, 3-Pack of Pipettes, and Tips - Available Now at Pipette.com 2Diagenode Launches Unique Semi-Automated Solution for Chromatin Immunoprecipitation 2
... Approved in Atlanta ATLANTA, May 19 Meeting ... the Kansas Bioscience Authority has approved more than ... a $581 million initiative to help researchers and ... at the Bio International Convention will create bioscience ...
... availability of the world,s first clinical guidelines to allow U.S. doctors ... disease. , ... Broomfield, CO (PRWEB) May 19, 2009 ... today the availability of the world,s first clinical guidelines to allow ...
... illustrate potential cost effective approach for, ... Symbol: RVX,CALGARY and ATLANTA, May 19 /PRNewswire-FirstCall/ - ... pleased to announce today that it has made ... (R&D) program for inflammatory diseases. Two new patent ...
Cached Biology Technology:As Other States Pull Back, Kansas Accelerates Innovation Investments at Bio International Convention 2As Other States Pull Back, Kansas Accelerates Innovation Investments at Bio International Convention 3As Other States Pull Back, Kansas Accelerates Innovation Investments at Bio International Convention 4Physician's Organization Makes History by Publishing U.S.'s First Adult Stem Cell Guidelines (ASCTA Drives Safe Stem Cell Practices) 2Physician's Organization Makes History by Publishing U.S.'s First Adult Stem Cell Guidelines (ASCTA Drives Safe Stem Cell Practices) 3Physician's Organization Makes History by Publishing U.S.'s First Adult Stem Cell Guidelines (ASCTA Drives Safe Stem Cell Practices) 4Resverlogix's Success in Inflammation Program Results in 2 Patents Filed 2Resverlogix's Success in Inflammation Program Results in 2 Patents Filed 3
(Date:12/24/2014)... Dec. 23, 2014  Since its launch in December 2014, the ... the pain of trying to remember their usernames and passwords ... to their smartphones. To assist people who have struggled to ... that created 1U and focuses on redefining identity, announced today ...
(Date:12/22/2014)... 22, 2014 Research and Markets ( ... "The Global Watermarking and Fingerprinting Markets" ... http://photos.prnewswire.com/prnh/20130307/600769 This insight provides ... and fingerprinting markets. Watermarking aims to control and ...
(Date:12/19/2014)... Research and Markets ( http://www.researchandmarkets.com/research/8kmfcn/iphone_5s ) has ... Sensor - Apple/AuthenTec TMDR92 & Sapphire - Technology Report" ... http://photos.prnewswire.com/prnh/20130307/600769 Following the acquisition of ... feature with the iPhone 5S. It is currently the ...
Breaking Biology News(10 mins):1U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3The Global Watermarking and Fingerprinting Markets 2iPhone 5S Fingerprint Sensor - Apple/AuthenTec TMDR92 & Sapphire - Technology Report 2
... of cancer cells can be switched on using drugs, ... Center. The finding could lead to a new class ... different cancer types. , Popular new drugs such as ... genetic mutations that express themselves in large amounts, causing ...
... the battle against Alzheimer's disease, physician-scientists at NewYork-Presbyterian ... antibodies in human blood that may help to ... as other neurodegenerative diseases. , The newly ... proteins called "oligomers" that are toxic to brain ...
... the protein complex implicated in autism spectrum disorders, a ... California, San Diego (UCSD) Skaggs School of Pharmacy and ... this complex and contribute to the developmental abnormalities found ... cover article in the June issue of the journal ...
Cached Biology News:U-M researchers discover gene switched off in cancer can be turned on 2U-M researchers discover gene switched off in cancer can be turned on 3Newly discovered antibody may be body's natural defense against Alzheimer's 2Newly discovered antibody may be body's natural defense against Alzheimer's 3Researchers reveal structure of protein altered in autism 2
... anti-phospho-FAK (Ser843) ... acid region encompassing the human, mouse, ... Accession Number: NM_153831 ... Routinely evaluated by immunoblot. ...
Molecular Biology grade. Ideally suited for DNA and RNA separation and recovery. High gel strength. Gelling temp. 36C. Melting temp. 88C. EEO: 0.05-0.13 Resolution 0.2-40 kb; Rnase/Dnase: none detec...
Rabbit polyclonal to Quinolinic acid ( Abpromise for all tested applications). Antigen: Synthetic quinolinic acid conjugated to bovine serum albumin....
Phospho-YAP (Ser127) Antibody Ship: Hot Store: -20 C...
Biology Products: