Navigation Links
Synthetic catalyst mimics nature's 'hydrogen economy'
Date:5/18/2009

CHAMPAIGN, Ill. By creating a model of the active site found in a naturally occurring enzyme, chemists at the University of Illinois have described a catalyst that acts like nature's most pervasive hydrogen processor.

The researchers describe their work in a paper accepted for publication in the Journal of the American Chemical Society, and posted on the journal's Web site.

Scientists have long been puzzled by nature's ability to use cheap and plentiful building blocks iron, nickel and sulfur to achieve the catalytic performance seen in rare and expensive metals. In particular, two enzymes iron-iron hydrogenase and nickel-iron hydrogenase function as hydrogen processors, much like platinum.

"Nature relies on a very elaborate architecture to support its own 'hydrogen economy,' " said Thomas B. Rauchfuss, a professor of chemistry and corresponding author of the paper. "We cracked that design by generating mock-ups of the catalytic site to include the substrate hydrogen atom."

The researchers' model of the nickel-iron complex is the first to include a bridging hydride ligand, an essential component of the catalyst.

"By better understanding the mechanism in the nickel-iron hydrogenase active site, we are learning how to develop new kinds of synthetic catalysts that may be useful in other applications," said graduate student Bryan E. Barton, lead author of the paper.

"The study of hydrogenases offers plenty of potential glamour such as the hydrogen economy, green energy and bio-fuel cells but the lasting breakthroughs result from manipulable mechanistic models like ours," said graduate student and co-author Matthew Whaley. "By building a model that contains a hydride ligand, we have proven that the behavior of these natural catalysts can be understood and optimized."


'/>"/>

Contact: James E. Kloeppel
kloeppel@illinois.edu
University of Illinois at Urbana-Champaign
Source:Eurekalert

Page: 1

Related biology news :

1. Synthetic chemical offers solution for crops facing drought
2. Using combinatorial libraries to engineer genetic circuits advances synthetic biology
3. Orientation of antenna protein in photosynthetic bacteria described
4. Synthetic biology can help extend anti-malaria drug effectiveness
5. Milestone achieved toward production of malaria treatment using synthetic biology and fermentation
6. Synthetic biology key in the 21st century
7. Synthetic biology: Is ethics a showstopper?
8. Synthetic virus supports a bat origin for SARS
9. UNC scientists teach enzyme to make synthetic heparin in more varieties
10. Biosynthetics production with detours
11. Synthetic Biology: Coming Up Fast!
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/24/2015)... 24, 2015 Research and Markets ( ... "Global Iris Recognition Market 2015-2019" report to their ... Recognition market to grow at a CAGR of 23.5 ... covers the present scenario and the growth prospects of ... To calculate the market size, the report considers the ...
(Date:3/24/2015)... , March 24, 2015   NexID Biometrics ... critical security-authentication needs, today announced the beginning of shipments ... solution. The company, based in ... the three-day Connect:ID Expo, which began here today at ... said version 2.0 of its SDK boosts the accuracy ...
(Date:3/23/2015)... Mass , March 23, 2015 SoundView Technology ... of NXT-ID,s (NASDAQ: NXTD ) Wocket smart wallet. SoundView was ... user feedback on their experience with the Wocket in multiple ... at CVS, Whole Foods and other retailers, making both debit ... Kris Tuttle also says, "If the company meets their ...
Breaking Biology News(10 mins):Global Iris Recognition Market 2015-2019 with 3M Cogent, Bioenable Technologies, Cross Match Technology, Iris ID Systems & Safran Dominating 2NexID Begins Shipments Of Version 2.0 Fake-Finger-Detection Solution 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 4
... HILL, N.C. Infants at 7 months of age who ... gaze and attention from one object to another when compared ... pattern is in part explained by atypical brain circuits. ... University of North Carolina School of Medicine researchers and published ...
... in the School of Science at Indiana University-Purdue University ... cells from regenerative human stem cells without the use ... historically have limited the application of stem cells to ... study of human induced pluripotent stem cells (hiPSCs) has ...
... Braconidae are known for their deadly reproductive habits. ... developing in other insects and their larvae, eventually killing the ... its sterility. Three new species of the parasitoid wasp genus ... of Hymenoptera Research , reflect this fatal behavior. ...
Cached Biology News:Atypical brain circuits may cause slower gaze shifting in infants who later develop autism 2IUPUI stem cell research could expand clinical use of regenerative human cells 2Kill Bill character inspires the name of a new parasitoid wasp species 2
(Date:5/5/2015)... May 5, 2015  Tikcro Technologies Ltd. (OTCQB: ... to continue trading on OTCQB  Marketplace, the market ... Marketplace allows for a continuous public market for ... have real-time quotes and market information on us ... OTCQB Marketplace includes U.S. and international companies in ...
(Date:5/5/2015)... ImmunoCellular Therapeutics, Ltd. ("ImmunoCellular") (NYSE MKT: ... and Chief Executive Officer, will present live at ... May 7, 2015     TIME:  11:30 am ET/8:30 am ... the red "register/ watch presentations" button ... where investors are invited to ask the company ...
(Date:5/5/2015)... Research and Markets ( http://www.researchandmarkets.com/research/x5gjj3/clinical ... "Clinical Laboratory, Molecular Diagnostics and Genomic Testing Services ... Global Version" report to their offering. ... of molecular diagnostics and pharmacogenics hold the promise ... that is moving out of the national and ...
(Date:5/5/2015)...   Tocagen Inc. , a clinical-stage immuno-oncology ... , M.D., a venture partner at New Enterprise ... of directors of Tocagen. Dr. Parkinson has more ... development, including leading clinical activities at Amgen and ... cancer therapeutics Gleevec®, Femara®, Zometa®, Kepivance® and Vectibix®, ...
Breaking Biology Technology:Tikcro Technologies Announces Approval to Continue Trading on OTCQB 2ImmunoCellular Therapeutics to Webcast Live at VirtualInvestorConferences.com on May 7 2Global Clinical Laboratory, Molecular Diagnostics and Genomic Testing Services Market Trends and Forecast 2015 to 2019 2Tocagen Appoints David R. Parkinson, M.D., to the Board of Directors 2Tocagen Appoints David R. Parkinson, M.D., to the Board of Directors 3Tocagen Appoints David R. Parkinson, M.D., to the Board of Directors 4
... on Thursday announced that three Wisconsin businesses would receive ... Commerce Technology Assistance Grant (TAG) and Technology Venture Fund ... , Functional Biosciences, Inc. , is a ... It will receive a $250,000 TVF loan for work ...
... ads on their round, shiny stomachs as part of "tummy ... To some, this is "desperate branding" in action. , ... spot on the list of branding failures. These projects are ... weird processes. , ,Roy Disney said, "You need branding when ...
... summer. Business slows. Indeed, in Europe, where I find myself ... animation that will last until the first of September. People ... grasp weakens. , ,Or does it? , ,After a rare ... mountain in my inbox and a to-do list that had ...
Cached Biology Technology:A final word on branding 2A final word on branding 3A final word on branding 4A final word on branding 5Leaving it all behind 2
... contains choice of Printing Surface (3 glass slides coated ... layer, 1 silicon wafer coated with 1000 Angstroms of ... slides), PDMS Stamps (3 PDMS micropatterned stamps with series ... x 10 mm or 200 um x 10 mm ...
Melanoma Antigen, Family C, 1 (MAGEC1) Rabbit anti-Human Polyclonal Antibody Immunogen: Synthetic peptide - KLH conjugated Family: New Recommended Storage: Long term: -20C; Short term: +4...
...
ECE-1 (H-60)...
Biology Products: