New model for bimolecular reactions in nanoreactors

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Nanoreactors are tiny systems which facilitate specific chemical reactions, as a catalyst does. Many are found in biological systems, such as certain proteins. But chemists are also able to synthesise artificial nanoreactors to control chemical reactions. An important class of these nanoreactors has a "yolk & shell" architecture like an egg: a catalytically active metallic nanoparticle is surrounded by a shell consisting of a polymeric network. These kinds of nanoreactors can create isolated environments for specific reactions and restrict them to the tiny space inside the shell.Mathematical description delivers new insightsPowered by WPeMatico

Cell aging in lung epithelial cells

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Pulmonary fibrosis can possibly be attributed to a kind of cellular aging process, which is called senescence. This has been shown by researchers from the Helmholtz Zentrum München, partner in the German Center for Lung Research (DZL). As they report in the ‘European Respiratory Journal’, they have already successfully counteracted this mechanism in the cell culture with the help of drugs.Pulmonary fibrosis causes the patient’s lung tissue to scar, resulting in progressive pulmonary function deterioration. In particular, the surface of the...Powered by WPeMatico

Sustainability is the business model of tomorrow

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Pioneering: The Sustainable Textile School, September 18 till 20, 2017, of Chemnitz University of Technology supports the ecological textile productionDyeing factories contaminating rivers, usage of pesticides in the cotton production, or pathogenic chemicals in clothes – there are many reasons for the...Powered by WPeMatico

Precision breeding needed to adapt corn to climate change, ancient samples show

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The US Corn Belt and European maize owe their existence to a historic change: the ability of this plant, originally from the tropics, to flower early enough to avoid winter. Research led by Cornell University in New York and the Max Planck Institute (MPI) for Developmental Biology in Tuebingen, Germany reveals that indigenous people in the American southwest started the process of adapting maize to temperate growing seasons 4000 years ago and refined it over the following 2000 years.From this point onwards, it grew well enough to provide a reliable source of subsistence, mainly in stews and soups. Its nutritional content was also improved...Powered by WPeMatico

More functional DNA in mitochondria cures male infertility

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Male infertility can be caused by mutations in the DNA of mitochondria, the powerhouses of cells. By increasing the total DNA amount in mitochondria, scientists from the Max Planck Institute for Biology of Ageing in Cologne restored testis function and semen quality in infertile mice.Worldwide approximately nine percent of women and men are involuntarily childless. In 40 to 50 percent of the cases this is due to male infertility.Powered by WPeMatico

Researchers discover Achilles’ heel of bacteria

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HZI researchers identify a protein in Salmonella that contributes to the assembly of the motility apparatus – a possible target for novel medicationsSalmonellae are particularly resistant to antibiotics since they possess not only one, but two membranes that protect them from harmful substances. This makes...Powered by WPeMatico