News tagged with molecular oxygen


Toxic molecule may help birds 'see' north and south

Toxic molecule may help birds 'see' north and south

Biology / Other

created Jun 22, 2009 | popularity 4 / 5 (3) | comments 0

Researchers at the University of Illinois report that a toxic molecule known to damage cells and cause disease may also play a pivotal role in bird migration. The molecule, superoxide, is proposed as a key ...





Search results for molecular oxygen


A molecular switch turns on the flame in 'nature's blowtorch'

Chemistry /

created May 29, 2008 | popularity 4.9 / 5 (7) | comments 0

Uncontrolled reaction of organic compounds with oxygen is easy: we call it fire. But nature often needs to do oxidations very specifically, adding oxygen to a particular carbon atom in a complicated molecule without disturbing ...


Orbitals

Researchers explain odd oxygen bonding under pressure

Physics / General Physics

created Aug 04, 2008 | popularity 4.4 / 5 (28) | comments 1

Oxygen, the third most abundant element in the cosmos and essential to life on Earth, changes its forms dramatically under pressure transforming to a solid with spectacular colors. Eventually it becomes metallic ...


Researchers First to 'See' Reactive Oxygen Species in Vital Enzyme

Researchers First to 'See' Reactive Oxygen Species in Vital Enzyme

Chemistry /

created Jan 10, 2009 | popularity 4 / 5 (1) | comments 2

(PhysOrg.com) -- Using two simultaneous light-based probing techniques at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, a team of researchers has illuminated important details about ...


Water acts as catalyst in explosives

Chemistry / Materials Science

created Mar 20, 2009 | popularity 4.3 / 5 (12) | comments 2

The most abundant material on Earth exhibits some unusual chemical properties when placed under extreme conditions.


'Normalizing' tumor vessels leaves cancer more benign

Medicine & Health / Cancer

created Feb 12, 2009 | popularity not rated yet | comments 0

A report publishing online on February 12th in the journal Cell, a Cell Press publication, suggests a counterintuitive new method to make cancer less likely to spread: by normalizing the shape of tumors' blood vessels to ...


Biologists identify the molecular basis of high-altitude adaptation in mice

Biologists identify the molecular basis of high-altitude adaptation in mice

Biology / Evolution

created Aug 10, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Biologists have long known how adaptive evolution works. New mutations arise within a population and those that confer some benefits to the organism increase in frequency and eventually become ...


Oxygen key to 'cut and paste' of genes

Oxygen key to 'cut and paste' of genes

Chemistry / Biochemistry

created Jul 03, 2009 | popularity 4.5 / 5 (4) | comments 0

(PhysOrg.com) -- An oxygen-sensitive enzyme has been found to play a key role in how genes create the many different proteins that make up our bodies.


Bioengineered proteins: Trial confirms new way to tackle cancer

Medicine & Health / Cancer

created Mar 26, 2009 | popularity 5 / 5 (2) | comments 1

Re-engineering a protein that helps prevent tumours spreading and growing has created a potentially powerful therapy for people with many different types of cancer. In a study published in the first issue of EMBO Molecular Me ...


Anesthesia and Alzheimer's

Medicine & Health / Diseases

created Apr 25, 2008 | popularity 4.3 / 5 (6) | comments 0

In studies of human brain cells, the widely-used anesthetic desflurane does not contribute to increased production of amyloid-beta protein; however, when combined with low oxygen conditions, it can produce more of this Alzheimer’s ...


Researchers identify new function of protein in cellular respiration

Biology /

created Jan 28, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Virginia Commonwealth University researchers have found that the protein Stat3 plays a key role in regulating mitochondria, the energy-producing machines of cells. This discovery could one day lead to the ...



List of search results for molecular oxygen