Navigation Links
Ultrafast lasers give CU-Boulder researchers a snapshot of electrons in action
Date:10/30/2008

In the quest to slow down and ultimately understand chemistry at the level of atoms and electrons, University of Colorado at Boulder and Canadian scientists have found a new way to peer into a molecule that allows them to see how its electrons rearrange as the molecule changes shape.

Understanding how electrons rearrange during chemical reactions could lead to breakthroughs in materials research and in fields like catalysis and alternative energy, according to CU-Boulder physics professors and JILA fellows Margaret Murnane and Henry Kapteyn, who led the research efforts with scientist Albert Stolow of the Canadian National Research Council's Steacie Institute for Molecular Sciences.

"The Holy Grail in molecular sciences would be to be able to look at all aspects of a chemical reaction and to see how atoms are moving and how electrons are rearranging themselves as this happens," Murnane said. "We're not there yet, but this is a big step toward that goal."

To be able to chart a chemical reaction, scientists need to be able to see how bonds are formed or broken between atoms in a molecule during chemical reactions. But only extremely limited tools are available to view the rapidly changing electron cloud that surrounds a molecule as the atoms move around, Murnane said. Changes in the electron cloud can happen on timescales of less than a femtosecond, or one quadrillionth of a second, representing some of the fastest processes in the natural world.

In a paper to appear in the Oct. 30 issue of Science Express, the online version of the journal Science, the CU team describes how they shot a molecule of dinitrogen tetraoxide, or N2O4, with a short burst of laser light to induce very large oscillations within the molecule. They then used a second laser to produce an X-ray, which was used to map the electron energy levels of the molecule, and most importantly, to understand how these electron energy levels rearrange as the mole
'/>"/>

Contact: Margaret Murnane
margaret.murnane@colorado.edu
303-492-7839
University of Colorado at Boulder
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Ultrafast optical shutter is switched entirely by laser light
2. Scientists demonstrate highly directional semiconductor lasers
3. Detecting dangerous chemicals with lasers, exploring the brains circuitry with light and more
4. New unifying theory of lasers advanced by physicists
5. Alma Lasers Ranked 9th in Deloitte Technology Fast 50 Award
6. Laser Energetics to Integrate BrightStar(TM) Alexandrite Lasers in Medical and Dental Applications
7. The Lancets New Online Medical Journal Helps Clinicians and Medical Researchers Find Practice-Changing Evidence Quickly and Easily
8. Researchers show how to stamp nanodevices with rubber molds
9. Researchers write protein nanoarrays using a fountain pen and electric fields
10. Sigma-Aldrich and the University of Illinois Offer New Boronic Acid Surrogates to Researchers Worldwide Through Licensing Agreement
11. Use it or lose it? Researchers investigate the dispensability of our DNA
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/30/2014)...  Decision Resources Group finds that the majority ... the United States believe that ... be the level of savings achievable by their ... cost to patients. Payers plan to leverage preferential ... expectations in order to encourage physician prescribing of ...
(Date:7/30/2014)... Switzerland (PRWEB) July 30, 2014 ... technologies for biologic drug discovery and mammalian cell line ... SURE CHO-Mplus Libraries ™ will be presented at the ... being held, September 8 – 10, 2014 at ... California. , The following abstract will be presented ...
(Date:7/30/2014)... MA (PRWEB) July 30, 2014 BCC ... Global Markets for Enzymes in Industrial Applications , ... reach to nearly $7.1 billion by 2018, registering a ... growth is estimated to be recorded in the detergent ... forecast period. , Enzyme technology has influenced almost every ...
(Date:7/30/2014)... Md. , July 30, 2014 ... components to interrogate biology, but such devices can ... As such, researchers have looked ... in vitro metabolic engineering to characterize ... a chip. New devices are envisioned to recreate ...
Breaking Biology Technology:Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 2Surveyed U.S. Payers Expect Cost Savings to MCOs and Patients to be the Strongest Drivers of Biosimilar Uptake 3Selexis SA to Present New Data and a Case Study at IBC’s Cell Line Development and Engineering Conference 2Selexis SA to Present New Data and a Case Study at IBC’s Cell Line Development and Engineering Conference 3Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 2Global Market for Industrial Enzymes to Reach Nearly $7.1 Billion by 2018; Detergent Enzyme Market to Record Maximum Growth 3UMD Researchers Bridge Gap between Microelectronics, Biological Systems 2UMD Researchers Bridge Gap between Microelectronics, Biological Systems 3UMD Researchers Bridge Gap between Microelectronics, Biological Systems 4
... Improve PCR product yield and specificity for ... Amplification Reactions with,Perfect Match PCR Enhancer ... Certain PCR amplification systems produce multiple product bands ... priming events, template secondary,structures, or suboptimal PCR conditions. ...
... use in transplantation studies , hNT BlueNeurons ... Michael McGrogan * Guadalupe Gonzalez * Waldemar Lernhardt ... hNT BlueNeurons express beta-galactosidase at high levels and,are ... stably transfected with a,lacZ gene expression vector. Because ...
... genomic targets up to 19 kb , Enhanced ... , Michael Borns Holly Hogrefe ,Stratagene , Improve ... by making simple modifications to PCR reaction,conditions. In this ... be amplified up to 19 kb in length. , ...
Cached Biology Technology:Optimizing pfuturbo DNA Polymerase Amplification Reactions with,Perfect Match PCR Enhancer 2Optimizing pfuturbo DNA Polymerase Amplification Reactions with,Perfect Match PCR Enhancer 3Optimizing pfuturbo DNA Polymerase Amplification Reactions with,Perfect Match PCR Enhancer 4Optimizing pfuturbo DNA Polymerase Amplification Reactions with,Perfect Match PCR Enhancer 5Optimizing pfuturbo DNA Polymerase Amplification Reactions with,Perfect Match PCR Enhancer 6hNT BlueNeurons Express b-Galactosidase at High ,Levels 2hNT BlueNeurons Express b-Galactosidase at High ,Levels 3hNT BlueNeurons Express b-Galactosidase at High ,Levels 4hNT BlueNeurons Express b-Galactosidase at High ,Levels 5Enhanced Amplification of Long Targets with PfuTurbo DNA,Polymerase 2Enhanced Amplification of Long Targets with PfuTurbo DNA,Polymerase 3
(Date:7/30/2014)... reversible epigenetic processes to regulate its genes, and adapt ... picture of the genome regulation taking place in the ... Genome Biology and illustrates how the truffle deals ... The authors say this may shed light on how ... truffles (Tuber melanosporum), also known as Prigord truffles, have ...
(Date:7/30/2014)... the Red Queen in Lewis Carroll,s Through the ... and National University of Singapore improved a 35-year-old ... over decades to millions of years. , The ... competition, incorporates the "Red Queen Effect," an evolutionary ... 1970s, which suggests that organisms must constantly increase ...
(Date:7/30/2014)... her eggs until they hatched 4.5 years later, according ... open-access journal PLOS ONE by Bruce Robison ... Octopuses typically have a single reproductive period during their ... their fertilized eggs until they hatch. Shallow-water octopuses typically ... but little is known about the brooding of deep-sea ...
Breaking Biology News(10 mins):How black truffles deal with the jumpers in their genome 2Classic Lewis Carroll character inspires new ecological model 2Classic Lewis Carroll character inspires new ecological model 3Deep-sea octopus has longest-known egg-brooding period 2
... a team of University of Notre Dame researchers that ... researchers Oleg Borbulevych, Malika Kumararasiri, Brian Wilson, Leticia Llarrull, ... unique process that is central to induction of antibiotic ... (MSRA). MRSA first emerged in the United ...
... Fla. Florida has the world,s worst invasive amphibian and ... University of Florida researcher verifies the pet trade as the ... 1863 through 2010, 137 non-native amphibian and reptile species were ... to one animal importer. The findings appear online today in ...
... 15, 2011 Sandata Technologies, LLC, a leading ... home care industry, today announced the release of ... support Consumer Directed Services Programs.  The enhanced functionality ... an enhanced Plan of Care module, and client ...
Cached Biology News:Notre Dame researchers demonstrate antibiotic sensing event central to MSRA antibiotic resistance 2UF-led study: Invasive amphibians, reptiles in Florida outnumber world 2UF-led study: Invasive amphibians, reptiles in Florida outnumber world 3Enhanced Santrax Electronic Visit Verification Functionality for Consumer Directed Services Programs 2Enhanced Santrax Electronic Visit Verification Functionality for Consumer Directed Services Programs 3
... V, is used for protein separation and ... system includes both the mini (18 ml) ... harvesting apparatus, cooling finger, electrode chambers, 10 ... syringe, colored protein sample, 2 vent buttons, ...
...
... Labeling Kit - NH2 is primarily used ... immunostaining and cellular proteins for tracing. NH2-Reactive ... succinimidyl group (NHS), and can easily make ... IgG or other proteins without any activation ...
... Lines ,High Quality, Functionally-Validated, Ion Channel Cell ... for having a critical role in nerve ... key function in pain, CNS and the ... been investigated in therapeutic areas, such as ...
Biology Products: