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8 Current news about the topic raman spectroscopy

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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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Toxicity of carbon and silicon nanotubes and carbon nanofibers

20-Jul-2018

Nanoparticles with a wide range of applying, including medicine, damage cells of microalgae Heterosigma akashivo badly. This algae species is widely spread in the Russian Far East marine area. The acute toxic effect exhibited at concentrations of 100 mg/l of carbon nanotubes (CNTs) and silicon ...

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The chemical reactivity of graphene bubbles

22-May-2018

A recent study, affiliated with UNIST has measured and controlled the temperature of individual graphene bubbles with a single laser beam for the first time. Thisstudy has been led by DistinguishedProfessorRodney S. Ruoff (School of Natural Science) in collaboration with Distinguished ...

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Silver nanoparticles take spectroscopy to new dimension

A new way of organizing nanostructures has boosted Raman signals by a hundred thousand times to better identify and characterize different molecules

04-Jan-2018

As medicine and pharmacology investigate nanoscale processes, it has become increasingly important to identify and characterize different molecules. Raman spectroscopy, a technique that leverages the scattering of laser light to identify molecules, has a limited capacity to detect molecules in ...

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Chemically tailored Graphene

Spectral fingerprint allows control of function

10-May-2017

Two-dimensional graphene consists of single layers of carbon atoms and exhibits intriguing properties. The transparent material conducts electricity and heat extremely well. It is at the same time flexible and solid. Additionally, the electrical conductivity can be continuously varied between a ...

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A signal boost for molecular microscopy

Cavity-enhanced Raman-scattering reveals information on structure and properties of carbon nanotubes

14-Jul-2016

Carbon nanotubes can be produced with a variety of shapes and properties and are therefore of much interest for widespread applications in fields as diverse as electronics, photonics, nanomechanics, and quantum optics. Hence it is important to have a tool at hand that allows to determine these ...

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Unraveling a truly one-dimensional carbon solid

Researchers present a direct first proof of stable ultra-long 1D carbon chains

06-Apr-2016

Elemental carbon appears in many different modifications, including diamond, fullerenes and graphene. Their unique structural, electronic, mechanical, transport and optical properties have a broad range of applications in physics, chemistry and materials science, including composite materials, ...

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Wanted: The faces of the chemical crowd

13-Feb-2015

Elements and their compounds will no longer be able to hide in mixtures, even if the latter are made up of many components. The end of chemical incognito is a result of the development at Warsaw's Polish Academy of Science's Institute of Physical Chemistry of a new, much more accurate method of ...

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