Navigation Links
Researchers shed new light on catalyzed reactions
Date:11/19/2008

HOUSTON -- (Nov. 19, 2008) -- Rice University scientists on the hunt for a better way to clean up the stubborn pollutant TCE have created a method that lets them watch molecules break down on the surface of a catalyst as individual chemical bonds are formed and broken.

"We can see the vibrations of the bonds between the atoms of our molecules," said researcher Michael Wong. "By watching the way these vibrations change frequency and intensity with time, we can watch how molecules transform into other molecules step-by-step."

The research is available online in the Journal of the American Chemical Society.

This chemical sensing technique relies on nanoparticles consisting of gold and silica called nanoshells, invented 10 years ago at Rice by nanophotonics pioneer Naomi Halas. Nanoshells are about 20 times smaller than a red blood cell, and they can amplify light waves and focus them so tightly that scientists can use them to detect just a few molecules of a target chemical. Building catalysts directly on the surface of the nanoparticles themselves allows researchers to use the nanosensing capabilities of nanoshells to directly follow chemical reactions on the catalyst using light.

"Nanoshells are among the world's most effective chemical sensors, and this study reveals another area where they are uniquely valuable," said Halas, the Stanley C. Moore Professor in Electrical and Computer Engineering, professor of chemistry and director of Rice's Laboratory for Nanophotonics. "We are aware of no other method that provides this level of detail about metal-catalyzed chemical reactions that run in water. Given the overwhelming interest in biofuels processing and other water-based reactions, we expect this to be a very useful tool in understanding these chemistries in more detail."

TCE, or trichloroethene, is a common solvent and one of the world's most pervasive and troublesome groundwater pollutants. A carcinogen, TCE
'/>"/>

Contact: Jade Boyd
jadeboyd@rice.edu
713-348-6778
Rice University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Researchers identify proteins involved in new neurodegenerative syndrome
2. Texas researchers and educators head for Antarctica
3. MGH researchers describe new way to identify, evolve novel enzymes
4. University of Pennsylvania researchers develop formula to gauge risk of disease clusters
5. U of MN researchers discover noninvasive diagnostic tool for brain diseases
6. U of Minnesota researchers discover noninvasive diagnostic tool for brain diseases
7. Researchers discover new strategies for antibiotic resistance
8. Researchers find new taste in fruit flies: carbonated water
9. Binghamton University researchers investigate evolving malaria resistance
10. UIC researchers find promising new targets for antibiotics
11. Researchers develop simple method to create natural drug products
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2015)... Mar. 24, 2015 Research and Markets ... "Global Iris Recognition Market 2015-2019" report to ... Iris Recognition market to grow at a CAGR of ... report covers the present scenario and the growth prospects ... 2015-2019. To calculate the market size, the report considers ...
(Date:3/23/2015)... SoundView Technology Group issues a new research update ... Wocket smart wallet. SoundView was one of the selected user groups ... the Wocket in multiple scenarios and outlets. ... retailers, making both debit and credit card payments.  ... the company meets their plans in 2015, it would push ...
(Date:3/20/2015)... , Mar. 20, 2015 Research and ... the addition of the "India Sensors Market ... offering. The sensor market is projected ... 2020 Consumer electronics, automotive, industrial and ... sensors in the country. In addition, adoption of ...
Breaking Biology News(10 mins):Global Iris Recognition Market 2015-2019 with 3M Cogent, Bioenable Technologies, Cross Match Technology, Iris ID Systems & Safran Dominating 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 2Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 3Technology Research Note Update from SoundView; Real-World Usage and Feedback of Wocket Smart Wallet at CVS, Whole Foods and other Retailers 4India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 2India Sensors Market Forecast and Opportunities 2020 - STMicroelectronics held the largest share in 2014 3
... may be ignoring a desire by American consumers to dine ... Researchers found that more than 8 out of 10 ... to pay more to dine at "green" restaurants. More than ... to protect the environment. The only problem is that ...
... Known nationally for her research into single-cell organisms that ... of microbiology and molecular genetics at The University of ... selected to receive the 2011 American Society for Microbiology ... members who have made significant contributions to the society. ...
... Pennsylvania, Dr. Ron Koder, assistant professor of physics at The ... that devised a novel method for producing an artificial protein ... was recently awarded a three-year $1.3 million grant from the ... can be administered to injured troops on the battlefield. ...
Cached Biology News:Diners may be willing to pay more to eat at 'green' restaurants 2Diners may be willing to pay more to eat at 'green' restaurants 3UTHealth professor to receive service award from American Society for Microbiology 2CCNY professor gets grant to develop 'artificial blood' 2
(Date:4/16/2015)... Proove Biosciences , Inc. is ... Contest for the 2015 BIO International Convention. Hosted ... International Convention will take place June 15-18 at the ... of BIO contest, industry leaders will be voting for ... conference. The community voting period began on April 14, ...
(Date:4/16/2015)... (PRWEB) April 16, 2015 According ... overexertion involving an outside source was ranked first ... includes injuries related to lifting, pushing, pulling, holding, ... in direct costs. The David Round Company takes ... committed to working hard to develop and design ...
(Date:4/16/2015)... April 16, 2015  In recognition of World Hemophilia Day, ... advocacy groups to illuminate more than 15 prominent landmarks red ... Boston,s Zakim Bridge and Prudential Tower, ... Mercedes-Benz Superdome and Denver,s ... evening of April 17, and coincide with hemophilia community events ...
(Date:4/16/2015)... 2015 /CNW/ - Bioenterprise Corporation is pleased to announce that ... Charlottetown , PEI.  Bioenterprise has established a ... Council for the commercialization of agricultural technologies and innovations. ... PEI ADAPT.  They have been at the heart of ... explains Dave Smardon , President & CEO of ...
Breaking Biology Technology:Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 2Proove Bisociences to Participate in the Buzz of BIO at the 2015 BIO International Convention 3The David Round Company Helps Companies Meet OSHA Standards by Combining Safety, Ergonomics, and Productivity 2Biogen Shines A Light On Hemophilia Community By Illuminating U.S. Landmarks Red On World Hemophlia Day 2Biogen Shines A Light On Hemophilia Community By Illuminating U.S. Landmarks Red On World Hemophlia Day 3Biogen Shines A Light On Hemophilia Community By Illuminating U.S. Landmarks Red On World Hemophlia Day 4Bioenterprise Corporation Expands into the Maritimes 2
... can't help making the obvious comparisons between technology implementations ... ,I've written before about Wi-Fi. In the U.S., you ... and there is relative good will about sharing bandwidth. ... not public and not inexpensive. I'm sending this report ...
... Madison, Wis. The Greater ... a web site linking local small ... business formation tips, government agencies, and ... the site to connect visitors with ...
... and Telephone Corp. is opening a liason office with ... Wisconsin-Platteville campus. Hiroki Tanaka, vice president and general manager ... for seeking out opportunities for the company to expand ... their relationship during governor Jim Doyle's trade mission to ...
Cached Biology Technology:U.S. risks third-world status in key technology 2U.S. risks third-world status in key technology 3