465 Current news about the topic spectroscopy

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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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New technique enables spatial separation of peptide structures

Milestone on the way to direct imaging of individual biomolecules

01-Nov-2018

A team of scientists at DESY and Universität Hamburg has reached another milestone towards the direct imaging of individual biomolecules: the group led by Jochen Küpper from the Center for Free-Electron Laser Science developed a new experimental technique which enables the separation of different ...

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Blue phosphorus - mapped and measured for the first time

18-Oct-2018

Until recently, the existence of "blue" phosphorus was pure theory: Now an HZB team was able to examine samples of blue phosphorus at BESSY II for the first time and confirm via mapping of their electronic band structure that this is actually this exotic phosphorus modification. Blue phosphorus ...

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A chemical criterion for rating movies

The isoprene concentration in the air is an objective indicator for setting the age rating of films

15-Oct-2018

A measurable criterion now exists for determining the age rating of films. A group of scientists at the Max Planck Institute for Chemistry in Mainz has found that the concentration of isoprene in cinema air correlates with the cinema industry‘s voluntary classification of films. Evidently, the ...

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Microfluidic molecular exchanger helps control therapeutic cell manufacturing

15-Oct-2018

Researchers have demonstrated an integrated technique for monitoring specific biomolecules - such as growth factors - that could indicate the health of living cell cultures produced for the burgeoning field of cell-based therapeutics. Using microfluidic technology to advance the preparation of ...

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Innovative sensing technique could improve greenhouse gas analysis

Innovative sensing technique could improve greenhouse gas analysis

12-Oct-2018

An international team of researchers has used an unconventional imaging technique known as ghost imaging to make spectroscopic measurements of a gas molecule. The new approach by scientists at Tampere University of Technology in Finland, the University of Eastern Finland and the University of ...

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Raman spectroscopy allows fast analysis of vaccines

08-Oct-2018

Vaccines are complex biomedicines composed of a number of different molecules. In the manufacturing process and before marketing authorisation, extensive research is required to verify the identity, quality, efficacy and safety of the products. Fast, cost-effective yet reliable analytical methods ...

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New insights into the structure of a killer protein

01-Oct-2018

The protein Bax is responsible for programmed cell death. Because it is constantly changing its location, its structure has so far been difficult to determine. Researchers at Ruhr-Universität Bochum and the University of Tübingen have gained new insights into the structure of the killer protein ...

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Multimodal imaging shows strain can drive chemistry in a photovoltaic material

27-Sep-2018

A unique combination of imaging tools and atomic-level simulations has allowed a team led by the Department of Energy's Oak Ridge National Laboratory to solve a longstanding debate about the properties of a promising material that can harvest energy from light. The researchers used multimodal ...

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Probing individual edge states with unprecedented precision

13-Sep-2018

A new technique makes it possible to obtain an individual fingerprint of the current-carrying edge states occurring in novel materials such as topological insulators or 2D materials. While insulators do not conduct electrical currents, some special materials exhibit peculiar electrical ...

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