Researchers of the Kola Scientific Center, Russian Academy of Sciences, have developed an efficient method for sewage water purification from fluorine ions. Fine purification of water can be achieved through utilisation of sorbents containing titanium. In addition, the method solves the problem of recycling spent sorbents saturated with fluorine.
The majority of contemporary toothpastes contain sodium fluoride as a fluoridiser agent to reinforce enamel. In the natural environment, this substance is found in the form of transparent deep cherry-coloured crystals called williomits after a French traveller, whose collection of minerals from Guinea was the first to reveal this crystal.
Williomits get washed out, this causing the fluorine ions presence in the water. Normally, their concentration should not exceed 1.4 milligram per litre of water, however, the fluorine content should be twice lower that that in the water intended for fish industry activity: the fish accumulate fluorine in the organism and then it is consumed by people. The substance which in small amounts is contained in the toothpaste and strengthens the teeth has become the reason for serious problems in Kola Peninsula and other regions, where mining enterprises work intensely to process ores containing williomits.
Sergey Komarov | alfa
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Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.
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Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.
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An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.
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Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
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23.05.2017 | Event News
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26.05.2017 | Life Sciences
26.05.2017 | Life Sciences
26.05.2017 | Physics and Astronomy