Navigation Links
New technique maps twin faces of smallest Janus nanoparticles
Date:9/27/2011

not work at sizes below 10 nanometers.

The Vanderbilt chemists Associate Professor David Cliffel, Assistant Professor John McLean, graduate student Kellen Harkness and Lecturer Andrzej Balinski took advantage of the capabilities of a state-of-the-art instrument called an ion mobilitymass spectrometer (IM-MS) that can simultaneously identify thousands of individual particles.

The team coated the surfaces of gold nanoparticles ranging in size from two to four nanometers with two different chemical compounds. Then they broke the nanoparticles down into clusters of four gold atoms and ran these fragments through the IM-MS.

Molecules from the two coatings were still attached to the clusters. So, by analyzing the resulting pattern, the chemists showed that they could distinguish between original nanoparticles where the two surface compounds were completely separated, those where they were randomly mixed and those that had an intermediate degree of separation.

"There is no other way to analyze structure at this scale except X-ray crystallography," said Cliffel, "and X-ray crystallography is extremely difficult and can take months to get a single structure."

"IM-MS isn't quite as precise as X-ray crystallography but it is extremely practical," added McLean, who has helped pioneer the new instrument's development. "It can provide structural information in a few seconds. Two years ago a commercial version became available so people who want to use it no longer have to build one for themselves."


'/>"/>

Contact: David Salisbury
david.salisbury@vanderbilt.edu
61-534-336-803
Vanderbilt University
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Stevens researchers pioneer novel technique to make plasmonic nanogap arrays
2. Exploring the market for 3-D nanopatterning techniques
3. HeliScopeCAGE: A new gene expression analysis technique on a single molecule sequencer
4. New screening techniques, treatments shed light on gastrointestinal disorders in children
5. Harnessing the energy of the Sun: New technique improves artificial photosynthesis
6. Transgenomic Announces Discovery of a Novel Technique Which Enhances Analytic Sensitivity of Standard Sanger Sequencing to 1%
7. Templated growth technique produces graphene nanoribbons with metallic properties
8. Ultrafast laser scribing technique to cut cost, hike efficiency of solar cells
9. Lab-on-a-Chip - ICAP Ocean Tomo Announces Auction of Patents for Advanced Techniques in Bio-Organic Analysis and Synthesis
10. New nano techniques integrate electron gas-producing oxides with silicon
11. Clinicians Use Advanced Radiotherapy Imaging Techniques from Elekta to More Accurately Visualize Moving Tumors in Patients with Lung Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New technique maps twin faces of smallest Janus nanoparticles
(Date:1/15/2014)... 2014 Freeslate, Inc ., the ... that Lupin Limited, one of India’s top five pharmaceutical ... PharmD System for high throughput solid form screening. ... on a wide range of quality, affordable generic and ...
(Date:1/15/2014)... , Jan. 15, 2014 TaiGen Biotechnology Company, ... exclusive agreement with R-Pharm, a leading Russian pharmaceutical company, ... the Russian Federation , ... Independent States (CIS). Nemonoxacin is a novel antibiotic for the ...
(Date:1/14/2014)... DC (PRWEB) January 14, 2014 Carahsoft ... for Thursday, January 23, 2014 at 2pm EST (11am ... Knowledge.” The topic focuses on how technology can turn ... critical decisions for government agencies. The online webinar will ...
(Date:1/14/2014)...  3D Communications, a leading provider of strategic communications services to corporations ... in the United States and ... , JD, is returning to the firm,s Washington, D.C. ... after more than two years of service as Associate Commissioner for ...
Breaking Biology Technology:Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Webcast - Natural Language Processing: Converting Raw Data into Actionable Knowledge – Hosted by Carahsoft and CDS Federal Services 2Former FDA Associate Commissioner Returns To 3D Communications 2
... Recently, academic debate has been swirling around the existence ... of phenomena, including photosynthesis, the process by which organisms ... suggested that entanglement (the quantum interconnection of two or ... separated in physical space) could be occurring in the ...
... Aug. 6 Rashid Chotani , M.D., ... Programs.  In this role, Chotani will lead chemical and biological programs that ... of the Secretary of Defense, as well as civilian agencies such as ... Disease Control. , , , ...
... 5, 2010 at 4:30 p.m. Eastern Time , ... BOTHELL, WA and VANCOUVER , Aug. 5 /PRNewswire-FirstCall/ - OncoGenex Pharmaceuticals, ... results for the three and six months ended June 30, 2010 and reviewed the ... , The Company ...
Cached Biology Technology:TASC, Inc. Appoints Rashid Chotani to Lead Chemical-Biological Defense Programs 2TASC, Inc. Appoints Rashid Chotani to Lead Chemical-Biological Defense Programs 3OncoGenex Reports Second Quarter Financial Results 2OncoGenex Reports Second Quarter Financial Results 3OncoGenex Reports Second Quarter Financial Results 4OncoGenex Reports Second Quarter Financial Results 5OncoGenex Reports Second Quarter Financial Results 6OncoGenex Reports Second Quarter Financial Results 7OncoGenex Reports Second Quarter Financial Results 8OncoGenex Reports Second Quarter Financial Results 9
(Date:7/9/2014)... to switch out one gene for another in a ... science fiction to reality within this decade. As with ... hope of fixing disease-causing genes in humans, for example--as ... have put one of those concerns to rest: using ... occurrence of mutations in the cells. The new results ...
(Date:7/9/2014)... LAFAYETTE, Ind. - Regulated deer hunts in Indiana state ... from decades of damage caused by overabundant populations of ... team led by Michael Jenkins, associate professor of forest ... Resources policy of organizing hunts in state parks has ... and wildflowers rendered scarce by browsing deer. , ...
(Date:7/9/2014)... from the Spanish National Cancer Research Centre (CNIO) have ... cells, also regulates cell division in stratified epitheliathose that ... cover the oesophagus or the vaginain adult organisms. According ... journal Nature Communications , this factor could also ... from stratified epithelia of the oesophagus and skin. , ...
Breaking Biology News(10 mins):No extra mutations in modified stem cells, study finds 2No extra mutations in modified stem cells, study finds 3Hunting gives deer-damaged forests in state parks a shot at recovery 2CNIO scientists discover that pluripotency factor NANOG is also active in adult organisms 2
... serendipity, researchers at North Carolina State University have found ... of intestinal birth defects may also inhibit the growth ... of chemical compounds created by NC State chemist Dr. ... of particular interest to her research: a compound that ...
... Indonesia has promised to become a world leader ... committed to a 26% reduction in greenhouse gas emissions ... 14% would have to come from reducing emissions from ... and other bodies are expected to raise total emission ...
... global framework for the safe production and use of ... Australia. The South-Pacific plant has been traditionally used ... some countries. Leading world Kava experts Dr Jerome ... Teschke from Wolfgang Goethe-University, Frankfurt, Germany; and Dr Vincent ...
Cached Biology News:Compound useful for studying birth defects may also have anti-tumor properties 2Hotspots of carbon confusion in Indonesia threaten to warm the world more quickly 2Hotspots of carbon confusion in Indonesia threaten to warm the world more quickly 3Hotspots of carbon confusion in Indonesia threaten to warm the world more quickly 4Hotspots of carbon confusion in Indonesia threaten to warm the world more quickly 5Experts propose global guidelines for safe use of Kava and new Australian study 2
TUP1 Market Segment: Molecular Biology...
In plasmid or lambda vector. Please inquire for more details!...
Goat polyclonal to Sarcosine Oxidase (HRP) ( Abpromise for all tested applications). Antigen: Full length protein: Sarcosine Oxidase (microbial). Entrez Gene ID: 51268 Swiss Protein ID: ...
... polyclonal to SARA ( Abpromise for ... Synthetic peptide: PVPKEMEQPV QTEEEDVELP conjugated to ... Fruit fly (Drosophila melanogaster) SARA. Conserved ... Entrez Gene ID: 9372 ...
Biology Products: