Navigation Links
Salt block unexpectedly stretches in Sandia experiments
Date:6/24/2009

To stretch a supply of salt generally means using it sparingly.

But researchers from Sandia National Laboratories and the University of Pittsburgh were startled when they found they had made the solid actually physically stretch.

"It's not supposed to do that," said Sandia principal investigator Jack Houston. "Unlike, say, gold, which is ductile and deforms under pressure, salt is brittle. Hit it with a hammer, it shatters like glass."

That a block of salt can stretch rather than remain inert might affect world desalination efforts, which involve choosing particular sizes of nanometer-diameter pores to strain salts from brackish water. Understanding unexpected salt deformations also may lead to better understanding of sea salt aerosols, implicated in problems as broad as cloud nucleation, smog formation, ozone destruction and asthma triggers, the researchers write in their paper published in the May Nanoletters.

The serendipitous discovery came about as researchers were examining the mechanical properties of salt in the absence of water. They found unexpectedly that the brittle substance appeared malleable enough to distort over surprisingly long distances by clinging to a special microscope's nanometer-sized tip as it left the surface of the salt.

More intense examination showed that surface salt molecules formed a kind of bubble a ductile meniscus with the exploratory tip as it withdrew from penetrating the cube. In this, it resembled the behavior of the surface of water when an object is withdrawn from it. But unlike water, the salt meniscus didn't break from its own weight as the tip was withdrawn. Instead it followed the tip along, slip-sliding away (so to speak) as it thinned and elongated from 580 nanometers (nm) to 2,191 nm in shapes that resembled nanowires.

A possible explanation for salt molecules peeling off the salt block, said Houston, is that "surface molecules don't have buddies."
'/>"/>

Contact: Neal Singer
nsinger@sandia.gov
505-845-7078
DOE/Sandia National Laboratories
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Small molecules might block mutant protein production in Huntingtons disease
2. A longer lasting tumor blocker
3. Caltech scientists show why anti-HIV antibodies are ineffective at blocking infection
4. TGen researchers discover possible way to block the spread of deadly brain tumors
5. Long-lasting nerve block could change pain management
6. Small molecules block cancer gene
7. Natural brain substance blocks weight gain in mice, UT Southwestern researchers discover
8. 2 beta blockers found to also protect heart tissue
9. New beta-blocker to offer hope to heart and lung sufferers
10. Infection blocks lungs protective response against tobacco smoke
11. Researchers block damage to fetal brain following maternal alcohol consumption
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Salt block unexpectedly stretches in Sandia experiments
(Date:7/29/2014)... new study from UC San Francisco is the first ... accumulate overtime and accelerate cellular aging, these negative effects ... and sleeping well. , "The study participants who ... shortening than the ones who didn,t maintain healthy lifestyles, ... lead author Eli Puterman, PhD, assistant professor in the ...
(Date:7/28/2014)... the South Pole in 1911, but new research shows ... , Using data from 16 ice cores collected from ... South Pole, a group led by Joe McConnell of ... the most accurate and precise reconstruction to date of ... described in an article published today in the online ...
(Date:7/28/2014)... TEMPE, Ariz. - Reactions among minerals and organic compounds ... deep carbon cycle, they provide energy for the deep ... life. However, very little is known about how minerals ... Arizona State University have demonstrated how a common mineral ... negating the need for toxic solvents or expensive ...
Breaking Biology News(10 mins):Healthy lifestyle may buffer against stress-related cell aging, study says 2Lead pollution beat explorers to South Pole, persists today 2Lead pollution beat explorers to South Pole, persists today 3Mineral magic? Common mineral capable of making and breaking bonds 2Mineral magic? Common mineral capable of making and breaking bonds 3
... University] Researchers from Brown University and the University of ... in breast cancers are related to environmental risk factors and ... disease. The study is published in today,s edition of ... of tumors had a direct association with diet, alcohol, and ...
... have high accumulations of the material beta-amyloid, which appear ... plaques are believed to be the underlying cause of ... in memory that characterize Alzheimer,s disease. The main aim ... formation of beta-amyloid. Since beta-amyloid is cleaved from the ...
... This release is available in German . ... and Marine Research in the Helmholtz Association for the first ... mission at about 79 North. The four-metre-long, torpedo shaped underwater ... pack ice. The vehicle was subsequently recovered by helicopter. ...
Cached Biology News:Study finds diet and alcohol alter epigenetics of breast cancer 2New approach to Alzheimer's therapy 2Highlight of the Polarstern expedition 2
(Date:7/29/2014)... 2014 According to the new ... Analytics (Image Analysis Software), Delivery Modes (Web Based/Cloud Based) ... Trends to 2018", published by MarketsandMarkets, analyzes and studies ... as North America , ... the Rest of the World (RoW). Browse ...
(Date:7/29/2014)... A new report by Allied ... and geography) - Size, Share, Global Trends, Company Profiles, ... 2013 - 2020", suggests that the global surgical equipment ... registering a CAGR of 11.1% from 2014 to 2020. ... electro surgical devices in operative procedures by providing highly ...
(Date:7/29/2014)... TransVac Solutions, the trusted leader in automated waste, ... hospitals, will be exhibiting at booth #209 at the ... Technical Exhibition Aug. 3-6 in Chicago, Ill. ... cleaner, reducing infection risk and saving millions in labor ... Staff will be available at booth #209 to explain ...
(Date:7/29/2014)... Genera Energy Inc. , a ... supply chain advancements, has announced the deployment of ... and Supply ASSURE™. Both systems were developed ... at consolidating and simplifying the entire process, managing ... feedstock end users. , “Through the Energy Grange ...
Breaking Biology Technology:Digital Pathology Market worth $437 Million by 2018 2Digital Pathology Market worth $437 Million by 2018 3Global Surgical Equipment Market is expected to reach $12.1 billion by 2020 - Allied Market Research 2Global Surgical Equipment Market is expected to reach $12.1 billion by 2020 - Allied Market Research 3TransVac Presents Cost Saving Technology at ASHE Conference for Keeping Hospitals Cleaner 2Genera Energy Introduces Proprietary Feedstock Management Systems 2Genera Energy Introduces Proprietary Feedstock Management Systems 3Genera Energy Introduces Proprietary Feedstock Management Systems 4
... receive funding for technology development projects from the ... Grant program. , ,The TAG program provides grants ... companies to offset the cost of professional services. ... Automated Notification Systems, Inc. , Eau Claire; Micrablate, ...
... the balkanization of information technology in healthcare will take ... Digital Healthcare Conference 2006 . And vendors aren't necessarily ... customers. , ,Providers are facing that common IT problem: ... of vendors and systems with challenges agreeing to standards, ...
... a gathering of health professionals attending the eHealth Summit ... first state to have a fully integrated electronic medical ... barriers. , ,Speaking before a group of healthcare executives, ... state's eHealth Initiative, Doyle said those barriers include organizational ...
Cached Biology Technology:Being proactive with vendors helps healthcare improve IT 2Doyle asks health professionals to overcome barriers 2Doyle asks health professionals to overcome barriers 3
Request Info...
Prepared in distilled water....
... white. The extinction coefficient , E(1%) at ... phosphate-buffered saline, pH 7.4, containing ... 50% glycerol. Avidin (from egg white) is conjugated ... molecular sieving and is completely ...
NM522 contains an F episome, which is required for production of ssDNA and for blue/white color selection. To maintain the F, NM522 should be grown on minimal (M-9) medium....
Biology Products: