HOME >> BIOLOGY >> NEWS
Spectroscopy for the real world

BERKELEY, CA One good thing leads to another. A team of scientists used a first-of-its-kind spectroscopy system at the U.S. Department of Energy's Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory to obtain the first direct observations of negatively charged ions accumulating on the surfaces of salt solutions.

Their work paves the way for a better understanding of the role played by tiny airborne salt particles, emitted into the air by crashing waves and sea spray, in a slew of atmospheric and environmental processes, such as the destruction of the ozone layer.

"This is important because many atmospheric phenomena are driven by reactions with the surface of sea salt aerosols," says Miquel Salmeron, a physicist with Berkeley Lab's Materials Sciences Division who has pioneered new ways of exploring the molecular behavior of liquids on surfaces. "We found that anions [negatively charged ions] concentrate at the surface of salt grains as they dissolve in water."

The research also underscores the merits of a new spectroscopy system, recently developed by Salmeron and colleagues, which enables scientists to study the chemical underpinnings of everyday catalytic, biological, and ecological phenomena in their natural environment, that is, at almost normal pressures and in the presence of water vapor.

Their study was published in the Jan. 28 issue of the journal Science.

The ALS is one of only two places in the world where photoelectron spectroscopy can be performed on surfaces at pressures above 1 torr (a unit of pressure equivalent to 1 millimeter of mercury in a barometer). The only other such instrument is at a synchrotron in Berlin, Germany, which follows Salmeron's design. All other photoelectron spectroscopy systems require a dry, high-vacuum environment.

"But a lot of information is lost once a compound is placed in a vacuum, so we developed an instrument to circumvent this problem. In
'"/>

Contact: Dan Krotz
dakrotz@lbl.gov
510-486-4019
DOE/Lawrence Berkeley National Laboratory
31-Jan-2005


Page: 1 2 3

Related biology news :

1. Pollution causes 40 percent of deaths worldwide, study finds
2. Waters off Washington state only second place in world where glass sponge reefs found
3. Stem cell licensing deal positions Toronto as world leader in technology
4. NASA-funded robotic sub finds bottom of worlds deepest sinkhole
5. Genome of Clostridium botulinum reveals the background to worlds deadliest toxin
6. Alarming acceleration in CO2 emissions worldwide
7. Another world-first for LCTs Xeno facilities
8. Journal details how global warming will affect the worlds fisheries
9. Biodiversity loss linked to economic inequality worldwide
10. NASA mission explores worlds deepest sinkhole
11. Double honor recognises world-class science and spin-out success

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2017)...  Veratad Technologies, LLC ( www.veratad.com ), an innovative ... verification solutions, announced today they will participate as a ... thru May 17, 2017, in Washington D.C.,s ... Identity impacts the lives of billions ... evolving digital world, defining identity is critical to nearly ...
(Date:4/18/2017)... April 18, 2017  Socionext Inc., a global expert in SoC-based ... edge server, the M820, which features the company,s hybrid codec technology. ... by Tera Probe, Inc., will be showcased during the upcoming Medtec ... show at the Las Vegas Convention Center ... Click here ...
(Date:4/11/2017)... Research and Markets has announced the addition of the ... ... to grow at a CAGR of 30.37% during the period 2017-2021. ... been prepared based on an in-depth market analysis with inputs from ... prospects over the coming years. The report also includes a discussion ...
Breaking Biology News(10 mins):
(Date:5/24/2017)... ... May 24, 2017 , ... Benchworks ... the Mid-Atlantic chapter of the Healthcare Businesswomen’s Association (HBA). Nominated by ... Mid-Atlantic chapter board meets in person once each quarter and holds monthly conference ...
(Date:5/24/2017)... BOSTON , May 23, 2017 As Ebola ... with four deaths and 20 suspected cases now reported, ... via the PubMed database, showed a correlation between the 2014 ... gene Replikin counts rose sharply in 2012-13, which preceded the ... rise in the Ebola gene Replikin counts in 2014-15, which ...
(Date:5/23/2017)... ... 2017 , ... NetDimensions has been ranked as a Leader ... Corporate Learning, 2017. , Aragon Research defines Leaders as organizations who possess comprehensive ... those strategies. NetDimensions’ ranking as a Leader due to its strengths in: , ...
(Date:5/23/2017)... ... May 23, 2017 , ... Bacterial biofilms, surface adherent communities ... cause diverse pathologies ranging from food poisoning and catheter infections to gum disease and ... the tens of billions of dollars per year, there is currently a paucity of ...
Breaking Biology Technology:
Cached News: