news

« BACK

Chemistry



Results 61 - 67 of 67.


Astronomy / Space - Chemistry - 07.04.2016
Origin of life: an artificial comet holds the missing piece
Origin of life: an artificial comet holds the missing piece
Researchers have for the first time shown that ribose, a sugar that is one of the building blocks of genetic material in living organisms, may have formed in cometary ices. To obtain this result, scientists at the Institut de Chimie de Nice (CNRS/Université Nice Sophia Antipolis) carried out a highly detailed analysis of an artificial comet created by their colleagues at the Institut d'Astrophysique Spatiale (CNRS/Université Paris-Sud).

Chemistry - Physics - 06.04.2016
Nanoporous material's strange
Nanoporous material’s strange "breathing" behavior
High-tech sponges of the infinitely small, nanoporous materials can capture and release gaseous or liquid chemicals in a controlled way.

Chemistry - Environment - 23.03.2016
Staying in shape: How wood chemistry relates to structural stability
Staying in shape: How wood chemistry relates to structural stability
Wood has many uses, which require to know its shrinking 1 and swelling capacity in relation to humidity (known as dimensional stability). Researchers from the CNRS and Cirad 2 have shown that in Bagassa guianensis , a fast-growing Guianese tree, the secondary metabolites, whose main purpose is to defend the tree against insects and fungi, also serve to reduce shrinkage.

Chemistry - 15.02.2016
Clouds reveal new particle formation process
Clouds reveal new particle formation process
In addition to precipitation, clouds influence the climate in various ways: they cover 70% of the Earth's surface and represent nearly 15% of the volume of the atmosphere. Scientists need to understand their underlying chemical and physical mechanisms in order to better integrate them into climate change models.

Chemistry - Physics - 01.02.2016
Molecular models help to better understand shale gas
Molecular models help to better understand shale gas
Although shale gas development is attracting a lot of attention, the recovery method used, hydraulic fracturing, or fracking, is raising increasing concerns. In order to develop more environmentally friendly methods, researchers need models and simulations validated by experiment and capable of reconstructing the complexity of such geological structures.

Chemistry - Physics - 09.10.2015
Designing better catalysts using simple chemical concepts
Designing better catalysts using simple chemical concepts
Catalytic nanoparticles contain various sites: for instance, the sites C (center of a hexagonal facet; nine neighbors marked in yellow), E (edge between two hexagonal facets; seven neighbors in green) and K (kink, at the corner between three facets; six neighbors in purple). Atoms at edges and terraces appear in light and dark blue, respectively.

Chemistry - Physics - 10.09.2015
Designing better catalysts using simple chemical concepts
Catalytic nanoparticles contain various sites: for instance, the sites C (center of a hexagonal facet; nine neighbors marked in yellow), E (edge between two hexagonal facets; seven neighbors in green) and K (kink, at the corner between three facets; six neighbors in purple). Atoms at edges and terraces appear in light and dark blue, respectively.