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226 Current news about the topic enzymes

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In the active centre of carbon dioxide conversion

Scientists reveal the features of efficient carboxylase enzymes

12-Jul-2019

In order to overcome the climate crisis, two measures are required: The reduction of carbon dioxide (CO2) emissions, and removal of CO2 from the earth atmosphere. The latter is the goal of Tobias Erb's research group at the Max Planck Institute for Terrestrial Microbiology in Marburg. Their ...

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Chemist integrates plant enzymes into sensors and fuel cells

Award for Nicolas Plumeré

25-Jun-2019

Bochum-based chemist Professor Nicolas Plumeré has been awarded the Luigi Galvani Prize by the Bioelectrochemical Society. The prize is awarded every two years to a researcher who has made an outstanding contribution to the field of bioelectrochemistry. Plumeré has successfully optimised ...

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Eco-friendly formulations based on vegetable oils

Solvent-free adhesives

10-May-2019

There is an increasing demand for green products, but for them to be genuinely sustainable, manufacturers must also use adhesives and paints that are made of bio-based feedstocks. Advanced materials developed in Fraunhofer labs point the way forward. Demand for organic products is booming. ...

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"Molecular scissors" for plastic waste

15-Apr-2019

A research team from the University of Greifswald and Helmholtz-Zentrum-Berlin (HZB) has solved the molecular structure of the important enzyme MHETase at BESSY II. MHETase was discovered in bacteria and together with a second enzyme - PETase - is able to break down the widely used plastic PET ...

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Optimized Binding Cavity

Directed evolution of a designer enzyme with an unnatural catalytic amino acid

05-Feb-2019

The impressively high conversion rates of natural enzymes partly result from increasing the catalytic activity of a selected few amino acid side chains through precise positioning within the protein binding cavity. Scientists have now demonstrated that such fine-tuning is also possible for ...

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Next step on the path towards an efficient biofuel cell

Two concepts combined making system as efficient as precious metal catalysts

16-Nov-2018

Fuel cells that work with the enzyme hydrogenase are, in principle, just as efficient as those that contain the expensive precious metal platinum as a catalyst. However, the enzymes need an aqueous environment, which makes it difficult for the starting material for the reaction – hydrogen – to ...

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Fully identified: The pathway of protons

New findings pave the way for chemical reproduction of hydrogen-producing enzymes

13-Nov-2018

The question how certain algal enzymes accomplish the high proton transfer rate for hydrogen production had in the past been subject to speculation. Dr. Martin Winkler, Dr. Jifu Duan, Professor Eckhard Hofmann and Professor Thomas Happe from Ruhr-Universität Bochum (RUB), together with colleagues ...

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This bacterium gets paid in gold

Harvesting solar fuels through a bacterium's unusual appetite for gold

11-Oct-2018

A bacterium named Moorella thermoacetica won't work for free. But UC Berkeley researchers have figured out it has an appetite for gold. And in exchange for this special treat, the bacterium has revealed a more efficient path to producing solar fuels through artificial photosynthesis. M. ...

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Artificial enzymes convert solar energy into hydrogen gas

08-Oct-2018

In a new scientific article, researchers at Uppsala University describe how, using a completely new method, they have synthesised an artificial enzyme that functions in the metabolism of living cells. These enzymes can utilize the cell's own energy, and thereby enable hydrogen gas to be produced ...

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Nobel Prize for Chemistry 2018 announced

Appreciation of the research in directed evolution and manipulation of enzymes and antibodies

04-Oct-2018

The researchers Frances H. Arnold and George P. Smith and Gregory P. Winter were announced as this year's winners of the Nobel Prize for Chemistry. Their achievements in the directed evolution in enzymes and the use of phage-display to produce antibodies was groundbreaking and worthy of the Nobel ...

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