“This is an exciting early step in developing a sustainable system for producing electricity from hydrogen” said Professor Chris Pickett (Associate Head of the Biological Chemistry Department at JIC). ”In Nature iron–sulphur enzymes catalyse a range of important chemical reactions that industry can only do by using precious metal catalysts and/or high temperatures and pressures. Based on Nature’s blueprint we are a step closer to building an iron-sulfur catalyst for reactions fundamental to a sustainable hydrogen economy”.
As a blueprint for their syntheses the JIC team used the known molecular structures of the catalytic centre - ‘the H-cluster’- found in the iron–only hydrogenase enzyme from two bacteria (Desulfovibrio desulfuricans and Clostridium pasteurianum). Hydrogenases catalyse interconversion of protons, electrons and hydrogen at extraordinary high rates. Their colleagues in Italy and the US  used state-of-the-art computational and spectroscopic techniques to probe the properties of the artificial H-cluster. The synthetic cluster was found to catalyse the reduction of protons to hydrogen albeit with poor energy efficiency. Nevertheless, the researchers believe their discovery should provide a lead to new materials that could eventually replace platinum.
 The John Innes Centre (JIC), Norwich, UK is an independent, world-leading research centre in plant and microbial sciences. The JIC has over 850 staff and students. JIC carries out high quality fundamental, strategic and applied research to understand how plants and microbes work at the molecular, cellular and genetic levels. The JIC also trains scientists and students, collaborates with many other research laboratories and communicates its science to end-users and the general public. The JIC is grant-aided by the Biotechnology and Biological Sciences Research Council.
How molecules teeter in a laser field
18.01.2019 | Forschungsverbund Berlin
Discovery of enhanced bone growth could lead to new treatments for osteoporosis
18.01.2019 | University of California - Los Angeles
The scientific and political community alike stress the importance of German Antarctic research
Joint Press Release from the BMBF and AWI
The Antarctic is a frigid continent south of the Antarctic Circle, where researchers are the only inhabitants. Despite the hostile conditions, here the Alfred...
World first experiments on sensor that may revolutionise everything from medical devices to unmanned vehicles
The new sensor - capable of detecting vibrations of living cells - may revolutionise everything from medical devices to unmanned vehicles.
Dead and alive at the same time? Researchers at the Max Planck Institute of Quantum Optics have implemented Erwin Schrödinger’s paradoxical gedanken experiment employing an entangled atom-light state.
In 1935 Erwin Schrödinger formulated a thought experiment designed to capture the paradoxical nature of quantum physics. The crucial element of this gedanken...
Cellulose obtained from wood has amazing material properties. Empa researchers are now equipping the biodegradable material with additional functionalities to produce implants for cartilage diseases using 3D printing.
It all starts with an ear. Empa researcher Michael Hausmann removes the object shaped like a human ear from the 3D printer and explains:
The phenomenon of so-called superlubricity is known, but so far the explanation at the atomic level has been missing: for example, how does extremely low friction occur in bearings? Researchers from the Fraunhofer Institutes IWM and IWS jointly deciphered a universal mechanism of superlubricity for certain diamond-like carbon layers in combination with organic lubricants. Based on this knowledge, it is now possible to formulate design rules for supra lubricating layer-lubricant combinations. The results are presented in an article in Nature Communications, volume 10.
One of the most important prerequisites for sustainable and environmentally friendly mobility is minimizing friction. Research and industry have been dedicated...
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18.01.2019 | Health and Medicine