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:11/22/2016)... 22, 2016   MedNet Solutions , an innovative ... of clinical research, is pleased to announce that the ... and Life Sciences Awards as "Most Outstanding in ... unprecedented year of recognition and growth for MedNet, which ... years. iMedNet ™ , MedNet,s ...
(Date:11/17/2016)... Market Watch: Primarily supported by ownership types; Private ... market is to witness a value of US$37.1 billion by ... Annual Growth Rate (CAGR) of 10.75% is foreseen from ... North America is not way behind ... at 9.56% respectively. Report Focus: The ...
(Date:11/15/2016)... , Nov. 15, 2016  Synthetic Biologics, ... developing therapeutics focused on the gut microbiome, today ... of 25,000,000 shares of its common stock and ... stock at a price to the public of ... to Synthetic Biologics from the offering, excluding the ...
Breaking Biology News(10 mins):
(Date:12/5/2016)... ... December 05, 2016 , ... The Real Dirt ... premier cannabis technology and application experts, Chip Baker. Chip Baker formerly co-founded Royal ... the past 30 years, Chip Baker other industry veterans have made the evolution ...
(Date:12/5/2016)... CHICAGO , December 5, 2016 ... report, "Cell Expansion Market, by Products (Consumable, Instruments, ... Applications (Regenerative Medicine and Stem Cell Research, Cancer, ... Research Institutes, Cell Banks) - Global Revenue, Trends, ... by Scalar Market Research, the global cell expansion ...
(Date:12/5/2016)... - Resverlogix Corp. ("Resverlogix" or the "Company") (TSX:RVX) ... Monitoring Board (DSMB) for the Company,s Phase 3 ... has completed a second planned safety review and ... without any modifications. The DSMB reviewed available study ... concerns were identified. The DSMB will conduct additional ...
(Date:12/5/2016)... Dec. 5, 2016  Eisai Inc. announced today ... study of rufinamide, which were presented at the ... (AES) held from December 2-6 in ... safety, tolerability and cognitive data showed that patients ... safety and tolerability profiles, cognitive development and behavior, ...
Breaking Biology Technology: