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General Chemistry

If solubility is the problem—mechanochemistry is the solution

Chemist Dr. Lars Borchardt and his team at TU Dresden recently achieved a huge breakthrough in the synthesis of nanographenes. Because of their unique electrical, thermal and mechanical characteristics, the carbon modification graphene and its little brothers the nanographenes are known as a very promising material for applications in electronics, sensor technology and energy storage. However, since the synthesis of nanographenes and graphene nanoribbons is still rather expensive and environmentally unsustainable, there are only few industrial applications. Dr. Borchardt’s innovative method of a mechanochemical synthesis of nanographenes has certainly paved the way for a safer, simpler and more sustainable route for the synthesis of alternative electronic and solar energy materials. …read more

Source:: PhysOrg Chemistry

      

Why bioelectrodes for energy conversion are not stable

Researchers at the Ruhr-Universität Bochum have discovered why bioelectrodes containing the photosynthesis protein complex photosystem I are not stable in the long term. Such electrodes could be useful for converting light energy into chemical energy in an environmentally friendly way. However, the proteins, which are stable in nature, are not functional in semi-artificial systems in the long term because reactive molecules are formed that damage the photosystem I. …read more

Source:: PhysOrg Chemistry

      

Simulations show how beta-amyloid may kill neural cells

Beta-amyloid peptides, protein fragments that form naturally in the brain and clump into plaques in Alzheimer’s disease patients, are thought to be responsible for neuron death, but it hasn’t been clear how the substances kill cells. Now, a Purdue University scientist has shown through computer simulations that beta-amyloid may accumulate to kill neural cells by boring holes into them. …read more

Source:: PhysOrg Chemistry

      

Electronic nose recognizes a variety of scents

Freshly ground coffee, popcorn, biowaste or smoke – in the course of life, we get to know different scents and thanks to our nose, we distinguish and identify them even without seeing their source. Scientists of Karlsruhe Institute of Technology (KIT) have now developed a sensor that can be taught different scents. The “electronic nose” is to be suited for everyday use and to smell potential hazards, such as smoldering cables or spoilt food, earlier than a human being. …read more

Source:: PhysOrg Chemistry

      

Alchemists of the cell environment

To analyse, understand, interfere, and correct. Researching about life machinery goes through deciphering how cells, the smaller alive units within an organism, work. Being healthy depends mainly on adequate behaviour of our cells. In fact, nowadays it is well established that many diseases (such as cancer) start when malfunctioning is occurring inside them. …read more

Source:: PhysOrg Chemistry

      

Hydrodynamics in cell studies

In collaboration with ETH Zurich, our team at IBM Research – Zurich published an article reviewing the interaction of liquid flows with biological cells. Our work was featured on the cover of the May 23 issue of Chemical Reviews, a highly-cited peer-reviewed scientific journal published by the American Chemical Society. …read more

Source:: PhysOrg Chemistry

      

Sustainable highly conductive electrode materials from ultrathin carbon nanofiber aerogels derived from nanofibrillated

Carbon aerogels are ultralight, conductive materials, which are extensively investigated for applications in supercapacitor electrodes in electrical cars and cell phones. Chinese scientists have now found a way to make these electrodes sustainably. The aerogels can be obtained directly from cellulose nanofibrils, the abundant cell-wall material in wood, finds the study reported in the journal Angewandte Chemie. …read more

Source:: PhysOrg Chemistry

      

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