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Upgrading cheap diode laser for use in precise measurements

06-Nov-2018

Russian physicists have developed a method for drastically narrowing the emission spectrum of an ordinary diode laser, like that in a laser pointer. This makes their device a useful replacement for the more complex and expensive single-frequency lasers, enabling the creation of compact chemical ...

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Investigation of inorganic pigments with apatite structure

02-Nov-2018

Compounds with the apatite structure differ from most classes by the variety of their chemical compositions: to create such substances, most chemical elements of the Periodic System can be used, while the characteristics of the crystalline structure of apatite will be preserved. The resulting ...

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Disproving the universal nature of the mercury test

Mercury test of catalysts that has been considered universal for 100 years seems to be ambiguous

26-Oct-2018

The mercury test of catalysts that has been used and considered universal for 100 years, turned out to be ambiguous. This conclusion was made by a group of scientists including a RUDN chemist. The group confirmed that the test required additional control experiments to verify its results. The ...

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A new nanocatalyst for obtaining hydrogen

19-Oct-2018

A chemist from RUDN was the first to use catalysts with ruthenium nanoparticles to obtain hydrogen under the influence of visible light and UV radiation. In the future, such catalysts may be used for large-scale production of hydrogen fuel under the influence of sunlight.Photochemical reactions ...

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New properties of uranium compounds

17-Oct-2018

Scientists from Russia, China, and the United States predicted and experimentally identified new uranium hydrides, predicting superconductivity for some of them.Of particular interest to scientists are the so-called "high-temperature superconductors" that boast superconductivity at less extreme ...

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Nanoreactors to synthesize organic substances under visible light

A new type of photocatalysts -- nanostructures from titanium dioxide

11-Oct-2018

A RUDN chemist developed a new type of photocatalysts - nanostructures from titanium dioxide. Hollow nanocubes with ultra-thin walls act like nanoreactors and provide for 28 fold more effective organic reactions at room temperature under the influence of visible light. Traditional methods of ...

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Oxygen vs. nanochip

Vulnerability of a promising two-dimensional semiconductor to air

28-Sep-2018

For the first time ever, an international team of scientists from NUST MISIS, the Hungarian Academy of Sciences, the University of Namur (Belgium), and Korea Research Institute for Standards & Science has managed to trace in details the structural changes of two-dimensional molybdenum disulfide ...

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Russian and German physicists developed a mathematical model of trapped atoms and ions

18-Sep-2018

It is difficult to study processes at the level of individual atoms and ions at room temperature due to their thermal motion. It causes disturbance that is the reason for considerable inaccuracy of measurements. The main cause of observation errors is the Doppler effect. However, if the atoms are ...

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Antilaser for Bose-Einstein condensate

20-Aug-2018

An international team of scientists developed the world's first antilaser for nonlinear Bose-Einstein condensate of ultracold atoms. For the first time, scientists demonstrated that it is possible to absorb the selected signal completely, even though the nonlinear system makes it difficult to ...

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An effective approach to optimizing medicinal molecules

16-Aug-2018

The search for new medicinal molecules with predetermined properties is a rather complex, expensive and time-consuming process, especially in oncology. Modern science allows us to accelerate this search through the use of computer technology and the introduction of automated processes. In the ...

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