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Chemistry News Archive July 2011



Chemistry News July 2011

News of the year 2011 in the fields of chemistry and chemistry-related topics like biochemistry, nantechnology, medicinal chemistry etc.

Main focus: press releases, scientific research results and summaries of chemistry articles, that are published in chemistry journals.

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Chemistry:

Chemistry

Remote NMR/MRI Chromatography

Researchers Apply NMR to Microfluidic Chromatography

By pairing an award-winning remote-detection version of NMR/MRI technology with a unique version of chromatography specifically designed for microfluidic chips, researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) have opened the door to a portable system for highly sensitive multi-dimensional chemical analysis that would be impractical if not impossible with conventional technologies.

Image: This 2-D plot shows separation of benzyl alcohol, benzene and butylbenzene using remote NMR/MRI with a monolithic chromatography column. Horizontal axis corresponds to the NMR chemical shift, vertical axis represents the transit time of compounds undergoing chromatographic separation [Credit: Alex Pines Group].


Interactions between nanotubes and photoluminescent materials

Interactions Between Nanotubes and Photoluminescent Materials

Supramolecules get time to shine: Rice technique reveals interactions between nanotubes, photoluminescent materials.

[Credit: Marti Lab/Rice University]


Ironing out ozone

Two-line Ferrihydrite as a Ozone Catcher

Porous iron oxide material effectively removes ozone from air.

Image: Mesoporous two-line ferrihydrite is highly active for O3 removal owing to its abundance of surface unsaturated Fe sites [Credit: Angewandte Chemie].


Protein-like Oligomerization of Carbohydrates

Protein-like Oligomerization of Carbohydrates

Sugars Can Do It Too: For the first time, the presence of multiple oligomeric forms is shown in a whole class of polymeric carbohydrates, the 6-deoxy-6-aminocelluloses, using analytical ultracentrifugation as a probe.

Image: The researchers examined aminocelluloses by means of analytical ultracentrifugation [Credit: Angewandte Chemie].




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Biochemistry:

Biochemistry

Proton transport

Proton Transfer in Membrane Protein Fully Elucidated

Extremely rapid water: RUB scientists decipher a protein-bound water chain.

Image: Three internal water molecules (red-white) in the protein transport a proton from top to bottom [Credit: RUB].


New Insights into the Signalling Network of Cells

How enzymes regulate energy metabolism.

5-Formylcytosine and 5-Carboxylcytosine

UNC researchers identify seventh and eighth bases of DNA.



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Chemistry and Materials:

Materials Chemistry

New Material can act as a Molecular Flask

A Molecular Flask

Researchers design a self-assembling material that can house other molecules.

Image: This is a scanning electron microscope image of a new material that self-assembles into a polyhedron using the attractive interactions associated with hydrogen bonds. The shapes then further organize into a crystal lattice that resembles a porous structure called zeolite, an absorbent material with many industrial uses [Credit: Michael D. Ward, New York University].




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Geochemistry, Astrochemistry:

Geochemistry

Rho Ophiuchi star formation region

Cosmic Bleach

Hydrogen peroxide found in clouds of cosmic gas and dust.

Image: The colorful Rho Ophiuchi star formation region, about 400 light-years from Earth, contains very cold (around -250 degrees Celsius), dense clouds of cosmic gas and dust, in which new stars are being born. The clouds are mostly made of hydrogen, but contain traces of other chemicals, and are prime targets for astronomers hunting for molecules in space. Astronomers using the APEX telescope to observe this region discovered hydrogen peroxide molecules in interstellar space for the first time, in the area marked with the red circle [Credit: ESO/S. Guisard].







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Kewords: Chemistry, news, reports, July 2011
 
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