Navigation Links
Caltech chemists develop simple technique to visualize atomic-scale structures
Date:9/2/2010

PASADENA, Calif.Researchers at the California Institute of Technology (Caltech) have devised a new techniqueusing a sheet of carbon just one atom thickto visualize the structure of molecules. The technique, which was used to obtain the first direct images of how water coats surfaces at room temperature, can also be used to image a potentially unlimited number of other molecules, including antibodies and other biomolecules.

A paper describing the method and the studies of water layers appears in the September 3 issue of the journal Science.

"Almost all surfaces have a coating of water on them," says James Heath, the Elizabeth W. Gilloon Professor and professor of chemistry at Caltech, "and that water dominates interfacial properties"properties that affect the wear and tear on that surface. While surface coatings of water are ubiquitous, they are also very tough to study, because the water molecules are "in constant flux, and don't sit still long enough to allow measurements," he says.

Quite by accident, Heath and his colleagues developed a technique to pin down the moving molecules, under room-temperature conditions. "It was a happy accidentone that we were smart enough to recognize the significance of," he says. "We were studying graphene on an atomically flat surface of mica and found some nanoscale island-shaped structures trapped between the graphene and the mica that we didn't expect to see."

Graphene, which is composed of a one-atom-thick layer of carbon atoms in a honeycomb-like lattice (like chicken wire, but on an atomic scale), should be completely flat when layered onto an atomically flat surface. Heath and his colleaguesformer Caltech graduate student Ke Xu, now at Harvard University, and graduate student Peigen Caothought the anomalies might be water, captured and trapped under the graphene; water molecules, after all, are everywhere.

To test the idea, the researchers conducted other exp
'/>"/>

Contact: Kathy Svitil
ksvitil@caltech.edu
626-395-8022
California Institute of Technology
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Fruit flies use horizontal landmarks for altitude control, says Caltech research team
2. Caltech: Gain and loss in optimistic versus pessimistic brains
3. Caltech biologists discover how T cells make a commitment
4. East-African human ancestors lived in hot environments, says Caltech-led team
5. Caltech-led team provides proof in humans of RNA interference using targeted nanoparticles
6. Caltech and UCSD scientists establish leech as model for study of reproductive behavior
7. Caltech receives more than $33 million from American Recovery and Reinvestment Act
8. Caltech researchers presenting at AAAS Meeting
9. Caltech researchers obtain first brain recordings from behaving fruit flies
10. Caltech neuroscientists discover brain area responsible for fear of losing money
11. Caltech scientists find emotion-like behaviors, regulated by dopamine, in fruit flies
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Caltech chemists develop simple technique to visualize atomic-scale structures
(Date:8/20/2014)... by researchers at the University of Missouri School of ... life-threatening heart condition caused by muscular dystrophy. , ... Ph.D., the leading author of the study and assistant ... of Molecular Microbiology and Immunology. "This is just a ... a treatment for people with this devastating heart condition, ...
(Date:8/20/2014)... State University researchers have developed methods for electronically manipulating ... electrical signals moths use to control those muscles. The ... moths, or "biobots," for use in emergency response. , ... we can control the movement of moths for use ... Dr. Alper Bozkurt, an assistant professor of electrical and ...
(Date:8/20/2014)... and POINT ROBERTS, Washington , August ... a Key Role in Addressing Security Concerns in the Payment ... global news source covering leading sectors including biometrics, issues commentary ... Jason Peaslee , Managing Partner at Thrive ... Gino Pereira , CEO of NXT-ID, Inc. (OTCBB: NXTD) ...
Breaking Biology News(10 mins):Gene therapy protects mice from lethal heart condition, MU researchers find 2Research paves way for development of cyborg moth 'biobots' 2Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 2Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 3Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 4Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 5Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 6Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 7
... explore one of the most critical health/environment intersections how ... diabetes and contribute to the problems of obesity Michigan ... by the Environmental Protection Agency. A five-year, $8 million ... Professor of pathobiology and diagnostic investigation in the College of ...
... Starting rehabilitation sooner following knee arthroplasty surgery could ... physical therapy within 24 hours of surgery can improve ... well as cut hospital stays, according to new research ... SAGE. Mindful of the trend towards discharging patients ...
... CA "Pluripotent" stem cellswhich have the potential to mature ... for their role in treating a vast array of human ... a team of Scripps Research Institute scientists has created a ... for researchers to determine whether their cell lines are normal ...
Cached Biology News:Hold your breath: Air pollution plays role in cardiac, metabolic diseases 2Rehabilitation within a day of knee replacement pays off 2Scripps Research scientists develop new test for 'pluripotent' stem cells 2
(Date:8/19/2014)... -- Research and Markets  has announced the addition of ... Business Report" report to their offering. ... Cells (SOFCs) in US$ Thousands. The report provides separate comprehensive ... Europe , Asia-Pacific , and ... the period 2012 through 2020. Market data and analytics are ...
(Date:8/19/2014)... CSSi, the leader in patient recruitment solutions ... of the company,s Medical and Clinical Advisory Board ("MCAB") ... William E. Gannon, Jr. to the MCAB. ... The MCAB, with Dr. Gannon,s leadership, will help ... set strategic goals for the advancement and development of ...
(Date:8/19/2014)... Scottsdale, AZ (PRWEB) August 19, 2014 ... the launch of its online sales skills training ... their sales skills. , MedTech clinical staff spend the ... at a hospital, standalone medical center, or physician practice ... administrative staff. But why stop there? Sales Horizons believes ...
(Date:8/18/2014)... 2014 BioElectronics Corporation (OTC Pink: ... devices said that its EVP Dr. ... as part of its Executive Interview Series. ... at http://ceolive.tv/bioelectronics-corp-otc-biel/biel-videos/2282-ceolive-tv-interview-bioelectronics-corp-otcqb-biel In ... the unique advantages of BioElectronics patented technology ...
Breaking Biology Technology:Global Solid Oxide Fuel Cells (SOFCs) - Strategic Business Report 2014 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 2CSSi Appoints Dr. William E. Gannon, Jr. to Newly Formed Medical and Clinical Advisory Board 3Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 2Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 3BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 2BioElectronics EVP Dr. Deepak Kotak Interviewed on CEO Live 3
... SOUTH SAN FRANCISCO, Calif. , April 29 ... creating new therapeutics discovered using cellular reprogramming and directed ... been awarded a three-year $1.5 million "Basic ... (CIRM). The grant will be used to fund the ...
... April 29 HEALTHeCAREERS Network , North America ,s ... , , ... , , , ... Angiography and Interventions (SCAI) recently joined the Network, launching the SCAI ...
... CHICAGO , April 29  Scotland ... attracted many of the world,s leading pharma and biotech ... May 3-6 in Chicago .  Heading ... Scottish research and the nation,s unique integrated industry approach ...
Cached Biology Technology:iPierian Awarded Basic Biology Grant by California Institute of Regenerative Medicine to Study Cellular Reprogramming 2iPierian Awarded Basic Biology Grant by California Institute of Regenerative Medicine to Study Cellular Reprogramming 3Healthcare Web site Expands Reach to Cardiology Professionals 2Healthcare Web site Expands Reach to Cardiology Professionals 3Scotland Announces New Life Science Leadership and Investments at BIO 2010 2Scotland Announces New Life Science Leadership and Investments at BIO 2010 3Scotland Announces New Life Science Leadership and Investments at BIO 2010 4