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New primary method for the measurement of pressure based on electrical measurements carried out on helium gas

04-Dec-2019

Scientists from the Physikalisch-Technische Bundesanstalt (PTB) have implemented a novel pressure measurement method, quasi as a byproduct of the work on the "new" kelvin. In addition to being new, this procedure is a primary method, i.e. it only depends on natural constants. As an independent ...

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Black silicon can help detect explosives

29-Nov-2019

Scientists from Far Eastern Federal University (FEFU), Far Eastern Branch of the Russian Academy of Sciences, Swinburne University of Technology, and Melbourne Center for Nanofabrication developed an ultrasensitive detector based on black silicon. The device is able to detect trace amounts of ...

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How graphene nanoparticles improve the resolution of microscopes

Small particles, big effects

22-Nov-2019

Conventional light microscopes cannot distinguish structures when they are separated by a distance smaller than, roughly, the wavelength of light. Superresolution microscopy, developed since the 1980s, lifts this limitation, using fluorescent moieties. Scientists at the Max Planck Institute for ...

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4D imaging with liquid crystal microlenses

22-Nov-2019

Most images captured by a camera lens are flat and two dimensional. Increasingly, 3D imaging technologies are providing the crucial context of depth for scientific and medical applications. 4D imaging, which adds information on light polarization, could open up even more possibilities, but ...

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Scientists design built-in controls for mini-chemical labs on a chip

20-Nov-2019

Since the 1990s, scientists have been exploring the possibilities of miniaturized chemical "laboratories" on a chip, which have potential as point-of-care diagnostics, analysis kits for field research and someday even conducting chemical tests on other planets. In a normal lab, chemists use ...

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Gallium-based solvating agent efficiently analyzes optically active alcohols

20-Nov-2019

A KAIST research team has developed a gallium-based metal complex enabling the rapid chiral analysis of alcohols. A team working under Professor Hyunwoo Kim reported the efficient new alcohol analysis method using nuclear magnetic resonance (NMR) spectroscopy in iScience. Enantiopure chiral ...

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Observing changes in the chirality of molecules in real time

19-Nov-2019

Chiral molecules - compounds that are mirror images of each other - play an important role in biological processes and in chemical synthesis. Chemists at ETH Zurich have now succeeded for the first time in using ultrafast laser pulses to observe changes in chirality during a chemical reaction in ...

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Pinpointing Pollutants from Space

Industrial plants can be precisely located to within two kilometers

19-Nov-2019

Nitrogen oxides (NO and NO2) are major contributors to air pollution. In order to accurately predict air quality and develop strategies to reduce pollution, precise emission data are needed. Daily satellite measurements can help to derive such data. The measuring instrument observes a specific ...

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Tailor-made carbon helps pinpoint hereditary diseases and correct medication dosage

New method expands knowledge of carbon-based materials

18-Nov-2019

Sensors manufactured with carbon-based materials can provide uniquely accurate and real-time information on hereditary diseases or the concentrations of drugs in the body. In addition to medicine, carbonaceous materials are used in batteries, solar cells and water purification. Other elements, ...

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Quantum microscope for inspection of magnetic materials at the nanoscale

Swiss start-up Qnami closes 2.6M CHF seed round

14-Nov-2019

Qnami announced the closing of a CHF 2.6M (USD 2.6M) seed round led by Venture Capital fund Quantonation and further supported by investiere, ZKB Start-up Finance and the High-Tech Gründerfonds. The funds will support the market entry of Qnami’s first product, a quantum microscope for inspection ...

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