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 In this, it resembled the behavior of the surface of water when an object is withdrawn from it. But unlike water, the salt meniscus didn't break from its own weight as the tip was withdrawn.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:7/30/2014)... studying the potential effects of climate change on ... on the wrong factors, according to a new ... Conservation Society, University of Queensland, and other organizations. ... science is missing the point when it comes ... of climate change scientists focus on the "direct" ...
(Date:7/30/2014)... a joint venture between The University of Texas at ... Science Center at San Antonio, has selected the winners ... Boice from UTSA and Lei Huang from the Health ... "Novel engineered ferritins for tracking and protecting neural stem ... is focused on finding a treatment for stroke through ...
(Date:7/30/2014)... by Clemson University associate professor Andrew S. Mount, performed ... the way for novel anti-fouling paint for ships and ... applications. , The team,s findings, published in ... of barnacles that attaches to a wide variety of ... acts as an underwater heavy-duty adhesive. , "In previous ...
Breaking Biology News(10 mins):Conservation scientists asking wrong questions on climate change impacts on wildlife 2Study: Marine pest provides advances in maritime anti-fouling and biomedicine 2
... Clemson University assistant professor of engineering and ... National Science Foundation Faculty Early Career Development (CAREER) ... students, decisions to enter engineering fields. Trenor ... theory of social capital to better understand undergraduate ...
... in Spanish . , Increasing calcium intake is ... a study supported in part by the Agricultural Research Service ... to help the body utilize calcium. The study also may ... with this problem. Currently, calcium intake recommendations are not ...
... a bacterium found in about 50% of humans worldwide, can cause ... for F1000 Medicine Reports , Seiji Shiota and Yoshio Yamaoka ... Infection by the H. pylori bacterium can approach ... but many develop problems including stomach ulcers. H. pylori ...
Cached Biology News:Clemson researcher receives grant to study engineering enrollment of women, minorities 2Vitamin D and calcium interplay explored 2Preventing gastric cancer with antibiotics 2
(Date:7/30/2014)... July 30, 2014. Applied DNA Sciences, ... provides DNA-based authentication and security solutions and services, has ... Life Sciences, a newly created position, with a starting ... lead APDN’s drive to build its business in pharmaceuticals ... customers, provide guidance to APDN’s R&D efforts, and apply ...
(Date:7/30/2014)... July 30, 2014  Dyadic International, Inc. ("Dyadic") ... patented and proprietary technologies are used to discover, ... for the bioenergy, bio-based chemical, biopharmaceutical and industrial ... "Tom" Dubinski as Vice President and Chief Financial ... financial and information technology operations for Dyadic and ...
(Date:7/30/2014)... (PRWEB) July 30, 2014 NCERC ... Athmanathan will present his findings on corn stover ... conference this week in Washington, D.C. , ... Energy conference is a testament to the success ... Caupert said. “Thanks to the foresight and vision ...
(Date:7/30/2014)... (PRWEB) July 30, 2014 LayerBio, Inc., ... completion of its first round of seed financing from ... enable preliminary efforts to develop a novel sustained-release product ... of our investors and their commitment to this important ... LayerBio. "Ophthalmology is one of many areas in which ...
Breaking Biology Technology:Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 2Dr. Michael E. Hogan, Ph.D., Joins Applied DNA Sciences as Vice President, Life Sciences 3Thomas Dubinski joins Dyadic as Chief Financial Officer 2Thomas Dubinski joins Dyadic as Chief Financial Officer 3Thomas Dubinski joins Dyadic as Chief Financial Officer 4NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 2NCERC at SIUE Researcher Takes Stage at Department of Energy Conference 3
... Nektar Therapeutics (Nasdaq: NKTR ) today reported its financial ... Net loss for the quarter ended September 30, 2009 improved to ... loss of $37.0 million or $0.40 per share in the third ... improvements to its operating efficiencies as compared to a year ago. ...
... /PRNewswire-FirstCall/ - Medicago Inc. (TSX-V: MDG), a biotechnology company ... on proprietary manufacturing technologies and Virus-Like Particles (VLPs), today ... Department of Health and Human Services (HHS) to present ... November 5, 2009 at 2:40 pm (EST) at the ...
... Advanced Life Sciences Holdings, Inc. (OTC Bulletin Board: ADLS), announced ... discussing the Company,s 2009 third quarter results on Tuesday, November ... Chairman & Chief Executive Officer, as well as other members ... the Company. A press release reporting the 2009 third quarter ...
Cached Biology Technology:Nektar Therapeutics Reports Third Quarter 2009 Financial Results 2Nektar Therapeutics Reports Third Quarter 2009 Financial Results 3Nektar Therapeutics Reports Third Quarter 2009 Financial Results 4Nektar Therapeutics Reports Third Quarter 2009 Financial Results 5Nektar Therapeutics Reports Third Quarter 2009 Financial Results 6Nektar Therapeutics Reports Third Quarter 2009 Financial Results 7Nektar Therapeutics Reports Third Quarter 2009 Financial Results 8Nektar Therapeutics Reports Third Quarter 2009 Financial Results 9Nektar Therapeutics Reports Third Quarter 2009 Financial Results 10Medicago to present at the U.S. Department of Health and Human Services' Global Health Security Initiative Workshop 2Advanced Life Sciences to Host 2009 Third Quarter Financial Results Conference Call and Webcast 2