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:2/26/2015)... --  Lexicon Pharmaceuticals, Inc. (Nasdaq: LXRX ) ... 35 th Annual Health Care Conference on Tuesday, March ... .  Lexicon management will provide an overview of Lexicon,s ... the presentation will be available through Lexicon,s website at ... available at www.lexpharma.com until April 3, 2015. ...
(Date:2/26/2015)... SAN FRANCISCO, Calif. , Feb. 26, 2015 /PRNewswire/ ... the treatment of cancer, today announced that Sean ... a corporate overview at the upcoming Cowen and Company ... Boston . Dr. McCarthy,s presentation will take ... About CytomX Therapeutics CytomX Therapeutics develops ...
(Date:2/26/2015)... Caris Life Sciences® today announced the ... Cancers Symposium in Orlando, Fla. ... profiling. Both studies utilized Caris Molecular Intelligence™, the ... biomarkers that shed light on potential treatment strategies ... cancer (SCBC). In one study, ...
(Date:2/25/2015)... Technologies Inc. (TSX-V: RTI) (the "Corporation") announced today that ... quarter of its fiscal year ended March 31, 2015. ... the CEO & CFO certifications for the three and ... on www.SEDAR.com . CFO ... pleased to announce the appointment of Prakash Hariharhan as ...
Breaking Biology Technology:Lexicon To Present At The Cowen 35th Annual Health Care Conference 2Tumor Profiling of Metastatic Prostate and Small Cell Bladder Cancers with Caris Molecular Intelligence Yields Insights into Novel and Conventional Therapeutic Options 2Tumor Profiling of Metastatic Prostate and Small Cell Bladder Cancers with Caris Molecular Intelligence Yields Insights into Novel and Conventional Therapeutic Options 3Tumor Profiling of Metastatic Prostate and Small Cell Bladder Cancers with Caris Molecular Intelligence Yields Insights into Novel and Conventional Therapeutic Options 4Tumor Profiling of Metastatic Prostate and Small Cell Bladder Cancers with Caris Molecular Intelligence Yields Insights into Novel and Conventional Therapeutic Options 5Radient Technologies Inc. Releases Third Quarter Results and Appoints New Interim CFO 2
... Calif., March 9 MannKind Corporation (Nasdaq: ... agreements with Pfizer Inc. (NYSE: PFE ) ... am Main, Germany and assets related to the production ... the production equipment, a quantity of bulk insulin and ...
... March 9 ExonHit Therapeutics (Alternext:,ALEHT) today announced that ... and redeemable November 8, 2011 have been converted,into shares. ... a EUR 17,231 capital increase and EUR,6,982,769 increase in ... debt is reduced to EUR 6,522,178 compared to EUR ...
... March 6 Finesse Solutions, LLC, Santa Clara, CA, ... sciences process applications, announced the technical demonstration of TruFluor(TM) ... Interphex in New York on March 17, 2009.The TruFluor ... of a disposable sheath, an optical reader, and a ...
Cached Biology Technology:MannKind Agrees with Pfizer on the Purchase of Frankfurt Insulin Manufacturing Plant 2MannKind Agrees with Pfizer on the Purchase of Frankfurt Insulin Manufacturing Plant 3MannKind Agrees with Pfizer on the Purchase of Frankfurt Insulin Manufacturing Plant 4ExonHit Therapeutics Shareholders' Equity Strengthened by Exercise of More Than Half of its Convertible Bonds 2Finesse Demonstrates TruFluor(TM) pH, a Single-Use Optical pH Sensor and Transmitter 2
(Date:2/24/2015)... Research and Markets ( http://www.researchandmarkets.com/research/sxwl43/global_2d_gesture ... "Global 2D Gesture Recognition Market 2015-2019" report ... forecast the Global 2D Gesture Recognition market to ... period 2014-2019 The increased demand for ... of the major trends in the market. The ...
(Date:2/13/2015)... , Feb. 13, 2015 ACT ... company that aims to transform cancer genomic information ... that the company has raised US$ 8 million in ... Based in Taipei, Taiwan , ... ACTDrug™, ACTOnco™. With the aim to implement next ...
(Date:2/10/2015)... 10, 2015  Alere Inc. (NYSE: ALR), a ... results for the quarter ended December 31, 2014. ... President of Alere said, "We made substantial progress ... the global leader in rapid diagnostics and delivering ... Health divestiture in early January enabled us to ...
Breaking Biology News(10 mins):Global 2D Gesture Recognition Market 2015-2019 with Cognitec Systems, CogniVue, eyeSight Mobile Technologies & PointGrab Dominating 2ACT Genomics Raises $8 Million in its First Private Funding Round 2Alere Inc. Announces Fourth Quarter 2014 Results 2Alere Inc. Announces Fourth Quarter 2014 Results 3Alere Inc. Announces Fourth Quarter 2014 Results 4Alere Inc. Announces Fourth Quarter 2014 Results 5Alere Inc. Announces Fourth Quarter 2014 Results 6Alere Inc. Announces Fourth Quarter 2014 Results 7Alere Inc. Announces Fourth Quarter 2014 Results 8Alere Inc. Announces Fourth Quarter 2014 Results 9Alere Inc. Announces Fourth Quarter 2014 Results 10Alere Inc. Announces Fourth Quarter 2014 Results 11Alere Inc. Announces Fourth Quarter 2014 Results 12Alere Inc. Announces Fourth Quarter 2014 Results 13Alere Inc. Announces Fourth Quarter 2014 Results 14Alere Inc. Announces Fourth Quarter 2014 Results 15Alere Inc. Announces Fourth Quarter 2014 Results 16Alere Inc. Announces Fourth Quarter 2014 Results 17Alere Inc. Announces Fourth Quarter 2014 Results 18Alere Inc. Announces Fourth Quarter 2014 Results 19Alere Inc. Announces Fourth Quarter 2014 Results 20Alere Inc. Announces Fourth Quarter 2014 Results 21Alere Inc. Announces Fourth Quarter 2014 Results 22Alere Inc. Announces Fourth Quarter 2014 Results 23Alere Inc. Announces Fourth Quarter 2014 Results 24Alere Inc. Announces Fourth Quarter 2014 Results 25Alere Inc. Announces Fourth Quarter 2014 Results 26Alere Inc. Announces Fourth Quarter 2014 Results 27Alere Inc. Announces Fourth Quarter 2014 Results 28Alere Inc. Announces Fourth Quarter 2014 Results 29Alere Inc. Announces Fourth Quarter 2014 Results 30Alere Inc. Announces Fourth Quarter 2014 Results 31Alere Inc. Announces Fourth Quarter 2014 Results 32Alere Inc. Announces Fourth Quarter 2014 Results 33Alere Inc. Announces Fourth Quarter 2014 Results 34
... 20 May 2012. The Stem Cells and Cancer Research ... Vall d,Hebrn Institute of Oncology (VHIO) has identified the ... used in clinical trials for colon cancer treatment. The ... with Professor Alberto Muozs laboratory at the Instituto de ...
... PHOENIX, May 18, 2012 /PRNewswire-iReach/ -- With ... out of sight, and research to find "cures" continuing ... remain "a few years away," a small but growing ... human consciousness. A number of healing practices that rely ...
... did not set out to discover one of the longest ... and a team of researchers all current or former ... published in Scientific Reports . Their findings shed ... lead to widespread, yet largely invisible, disruptions of ecological interaction ...
Cached Biology News:Discovery of mechanisms predicting response to new treatments in colon cancer 2Discovery of mechanisms predicting response to new treatments in colon cancer 3Healing Method from Australia Addresses the Human Genome 2Stanford scientists document fragile land-sea ecological chain 2
... Plant Leaf DNA Purification Kit is designed for ... leaf tissue. The protocol can be completed in ... up to obtain larger amounts of DNA. The ... restriction digestion, and Southern blotting. The MasterPure Kit ...
Caspase Activity Detector, SR-VAD-FMK Kit , 100 tests Consult technical datasheet for details....
HistoScan AP Universal Goat Kit...
...
Biology Products: