Navigation Links
Oregon scientists offer new insights on controlling nanoparticle stability
Date:12/9/2013

smaller nanoparticles have better structural integrity than larger-sized particles that have been tested. In other words, Hutchison said, they are less likely to lose their ligands and bind together. "If you have unstable particles, then the property you want is fleeting," he said. "Either the light emission degrades over time and you're done, or the metal becomes inactive and you're done. In that case, you want to preserve the function and keep the particles from aggregating."The opposite is desired for Hutchison and others working in the National Science Foundation-funded Center for Sustainable Materials Chemistry, a multi-universities collaboration led by the UO and Oregon State University. Researchers there are synthesizing nanoparticles as precursors for thin films.

"We want solution precursors that can lead to inorganic thin films for use in electronics and solar industries," said Hutchison, who also is a member of the UO Materials Science Institute.

"In this case, we want to know how to keep our nanoparticles or other precursors stable enough in solution so that we can work with them, using just a tiny amount of additional energy to make them unstable so that they condense into a film -- where the property that you want comes from the extended solid that is generated, not from the nanoparticles themselves."

The research, Hutchison said, identified weak sites on nanoparticles where ligands might pop off. If only a small amount do so, he said, separate nanoparticles are more likely to come together and begin the sintering process to create thin films.

"That's a really stabilizing effect that, in turn, kicks out all these ligands on the outside," he said. "The surface area decreases quickly and the particles get bigger, but now all the extra ligands gets excluded into the film and then, over time, the ligands vaporize and go away."

The coming apart, however, is a "catastrophic failure" if protecting against sinterin
'/>"/>

Contact: Jim Barlow
jebarlow@uoregon.edu
541-346-3481
University of Oregon
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Development near Oregon, Washington public forests
2. Oregon researchers say supplement cuts muscle loss in knee replacements
3. Oregon Biodiversity Information Center wins 2013 Natureserve Network Collaboration Award
4. Ken Bierly of the Oregon Watershed Enhancement Board to receive ESA Regional Policy Award
5. Argonne scientists Rajh, Soderholm and Segre named AAAS Fellows
6. Deep Carbon Observatory scientists discover quick recipe for producing hydrogen
7. Stanford scientists probe abandoned mine for clues about permanent CO2 sequestration
8. A*STAR scientists discover novel hormone essential for heart development
9. Scientists unearth secrets of Périgord truffles, the culinary black diamond
10. Top scientists to present at Epigenetic Control and Cellular Plasticity symposium
11. Salk scientists crack riddle of important drug target
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Oregon scientists offer new insights on controlling nanoparticle stability
(Date:11/15/2014)... -- While we may still be a few years away from ... to gain instant access to all that ailed his patients, ... tablets for monitoring and measuring our health are cropping up ... a tad Orwellian to some, but a new survey suggests ... opportunities into their healthcare regime. These are some ...
(Date:11/7/2014)... by Dr. Debra Auguste, associate professor, biomedical engineering, ... City College of New York, have identified a ... one of the most aggressive forms of breast ... a high mortality rate owing to aggressive proliferation ... options. However, Professor Auguste,s team, discovered the overexpression ...
(Date:11/6/2014)... deaths occur because of metastasis, yet progress in ... slow. , "It,s been particularly challenging to design ... research fellow in systems biology at Harvard Medical ... until after they,ve already metastasized." , Gujral and ... should help researchers better understand how metastasis begins. ...
Breaking Biology News(10 mins):Americans May Be Ready for a Brave New World of Healthcare 2Americans May Be Ready for a Brave New World of Healthcare 3Americans May Be Ready for a Brave New World of Healthcare 4Migration negation 2Migration negation 3
... has been shown to improve the neurological function ... University of Traditional Chinese Medicine, China showed that ... cells positive for 5-bromodeoxyuridine, a cell proliferation-related marker, ... growth-associated protein 43, a marker of synaptic plasticity ...
... potential is the direct current potential difference between the ... Its initial amplitude is a significant indicator of the ... well as injury current, can be modulated by direct ... electrical field are hard to define. Dr. Guanghao Zhang ...
... 6, 2013 /PRNewswire-iReach/ -- IdentiSys Inc., North America,s ... card issuance, emergency response, and access control security systems, ... world,s leader in Customer and Patient Experience Management systems. ... from Qmatic to the marketplace and will be the ...
Cached Biology News:IdentiSys brings Qmatic Q-Guide Queuing Systems to the North American market 2IdentiSys brings Qmatic Q-Guide Queuing Systems to the North American market 3
(Date:11/21/2014)... Texas (PRWEB) November 21, 2014 ... is a professional and in-depth research report on ... including its definition, classification, application, and industry chain ... covers the international market analysis, including China’s domestic ... macroeconomic environment & economic situation analysis. The report ...
(Date:11/21/2014)... , Nov. 20, 2014 /CNW/ - Aequus Pharmaceuticals ... announce that it has closed a brokered private ... for approximately C$3.7 million.  Cormark Securities Inc. and ... the Brokered Offering for a syndicate of agents ... Financial Corp. (collectively the "Agents"). Concurrently with the ...
(Date:11/21/2014)... , Nov. 20, 2014 /PRNewswire/ - BIOREM Inc. (TSXV: BRM) ("Biorem" or ... month periods ended September 30, 2014.  Biorem,s complete 2014 third quarter ... ). Financial Summary:Three-months ended September 30, , ... share data) , 2014 , 2013 ... , 5,281 , 6,715 , ...
(Date:11/18/2014)... FL (PRWEB) November 17, 2014 ... point-of-care diagnostic tests – today announces its third ... and Prevention’s (CDC) Get Smart About Antibiotics Week ... Week is a national campaign designed to highlight ... health departments, and non-profit and for-profit partners to ...
Breaking Biology Technology:International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 2International Transformer Industry - Analysis on Applications, Development & Forecasts Now Available at ReportsnReports.com 3Aequus Pharmaceuticals closes $4.2 million private placement financing 2Aequus Pharmaceuticals closes $4.2 million private placement financing 3Biorem Reports Third Quarter Results 2Biorem Reports Third Quarter Results 3RPS Again Partners with the CDC in Support of the 2014 Get Smart About Antibiotics Week 2RPS Again Partners with the CDC in Support of the 2014 Get Smart About Antibiotics Week 3
... July 24 Abaxis, Inc.,(Nasdaq: ABAX ), a medical ... for the first,fiscal quarter ended June 30, 2008., ... 7% over last year,s comparable quarter. -- Total sales ... units or 19% over last year,s ...
... hospital physicians, pulmonary and critical care clinicians, ... about overuse of antibiotics, DURHAM, N.C., July ... conferences of the American Thoracic Society and,Society of ... care physicians, and researchers are unanimous in their ...
... 24 Glasses embedded with a telescope,promise to ... to drive and do,other activities requiring sharper distance ... of these innovative glasses,over earlier devices in an ... Biomedical Optics, mailed to subscribers in print form ...
Cached Biology Technology:Abaxis Reports Financial Performance for the First Quarter of Fiscal 2009 2Abaxis Reports Financial Performance for the First Quarter of Fiscal 2009 3Abaxis Reports Financial Performance for the First Quarter of Fiscal 2009 4Abaxis Reports Financial Performance for the First Quarter of Fiscal 2009 5Abaxis Reports Financial Performance for the First Quarter of Fiscal 2009 6Abaxis Reports Financial Performance for the First Quarter of Fiscal 2009 7Abaxis Reports Financial Performance for the First Quarter of Fiscal 2009 8U.S. Clinicians Indicate a Strong Need for New Tools to Combat Sepsis 2U.S. Clinicians Indicate a Strong Need for New Tools to Combat Sepsis 3Telescope Embedded in Spectacle Lens Promises to Make Driving Easier for Visually Impaired 2Telescope Embedded in Spectacle Lens Promises to Make Driving Easier for Visually Impaired 3
Kit containing MACS equipment and reagents for immunopurification of proteins....
... LCMSsolution software offers an intuitive, ... instrument control, diverse data handling, ... requirements. Comprehensive functions include data ... data management in both standalone ...
... a modern flow cytometer, a scientist can ... labeled with fluorescent probes. However, the emission ... cell labeling are broader than the light ... filters. Thus, the fluorescence signal of a ...
... Sigmas FLAG Immunoprecipitation kit allows a ... of an active FLAG-tagged protein. The ... gel, which is a highly specific ... resin. The use of affinity resin ...
Biology Products: