Navigation Links
NASA, Purdue study offers recipe for global warming-free industrial materials
Date:5/3/2010

net. When that radiation is trapped instead of being released, a greenhouse effect results, warming the planet.

The new study looked at a broader class of chemicals to identify molecular-level features that make them more or less efficient at trapping radiation in the atmospheric window. The study employed results from atomic-scale quantum chemistry calculations done on computers from NASA and Information Technology at Purdue (ITaP), Purdue's central information technology organization.

"We specifically looked at molecules that we felt would have potential for industrial use as replacements for chlorofluorocarbons," says Francisco, whose research focuses on the chemistry of molecules in the atmosphere.

Among other things, the study looked at how the number and placement of electronegative atoms in a molecule's structure affects its radiative efficiency. The number and placement of fluorine atoms proved to be a key factor because they're very electronegative and form highly polar bonds with carbon and sulfur.

Fluorine atoms thus tend to change the bond-polarity of the molecules -- modifying the bonds holding the atoms in the structure. This, in turn, affects how a molecule will absorb infrared radiation that normally passes through Earth's atmosphere and into space.

"The polarity change is what makes for an efficient absorber of infrared radiation," says Lee, chief of the Space Science and Astrobiology Division at NASA Ames Research Center.

One message from the study: Avoid allowing fluorines to bunch up in a molecular structure. "In other words, don't put them all on one atom," Francisco says. "Spread them out."

The fluorinated compounds also persist longer in the atmosphere than carbon dioxide and other major global warming agents, Lee and Francisco note. Even if emitted in lower quantities, fluorine-containing chemicals might have a powerful cumulative effect. Some don't break down for thousands of ye
'/>"/>

Contact: Greg Kline
gkline@purdue.edu
765-494-8167
Purdue University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Purdue researchers click nutrition with camera diet study
2. Purdue research finds similarities in dog, human breast cancer pre-malignant lesions
3. Purdue researchers obtain a snapshot clarifying how materials enter cells
4. Purdue researchers propose way to incorporate deforestation into climate change treaty
5. Purdue researcher invents molecule that stops SARS
6. Purdue study suggests warmer temperatures could lead to a boom in corn pests
7. Purdue study finds dairy better for bones than calcium carbonate
8. Protein can help cells or cause cancer, Purdue researcher finds
9. Childhood obesity indicates greater risk of school absenteeism, Penn study reveals
10. A study by the MUHC and McGill University opens a new door to understanding cancer
11. Study begins to reveal clues to the cause and progression of sepsis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/30/2014)... release is available in German . ... among the most expensive foods in the world. Because they ... them. But the distinctive smell of truffles is not only ... scientists under the direction of the Goethe University Frankfurt have ... by soil bacteria which are trapped inside truffle fruiting bodies. ...
(Date:9/30/2014)... involving mice and published in the October 2014 issue ... , suggests that just because you can do it, ... of Italian scientists have found that using marijuana in ... system. This damage may result in autoimmune diseases and ... disease and rheumatoid arthritis in adulthood. , "I hope ...
(Date:9/30/2014)... your doctor to know what goes wrong with your muscles ... to know what "normal" actually is. That,s where a new ... FASEB Journal comes in. In the ... set of molecules that can help scientists "see" which genes ... more, they found never-before-detected gene activity and that men have ...
Breaking Biology News(10 mins):On the trail of the truffle flavor 2Adolescent exposure to thc may cause immune systems to go up in smoke 2Scientists identify which genes are active in muscles of men and women 2
... a rock type found only in the world,s oldest oceans ... a foothold on the Earth. , A scientific team led ... Denmark, and including scientists from Newcastle University, UK, and universities ... managed to plot the rise and fall of oxygen levels ...
... since the Roman Empire employed a naturally occurring form ... aqueducts and other large edifices, researchers have analyzed the ... building materials such as steel, which has a well-documented ... enough, the three-dimensional crystalline structure of cement hydrate - ...
... Center will play host to one of the world,s premier ... and Chemotherapy (ICAAC). From September 12-15, nearly 8,000 scientists ... people. ICAAC has traditionally been an outlet for the ... Among the announcements expected next week: ...
Cached Biology News:Ancient oceans offer new insight into the origins of animal life 2Cement's basic molecular structure finally decoded 2Cement's basic molecular structure finally decoded 3
(Date:9/30/2014)... (PRWEB) September 30, 2014 Proove ... medicine, is excited to announce a new genetic test ... The Proove Pain Perception Test will provide physicians ... and why pain tolerance levels are stratified between individuals. ... identify whether a person has a genetic predisposition that ...
(Date:9/30/2014)... Fla. , Sept. 30, 2014 CORD:USE ... pleased to announce that it has entered into an ... Inc. (Tianhe) which has licensed a series of patented technologies ... cells for possible clinical applications.  Tianhe is performing Phase ... and Spain using Tianhe,s Stem ...
(Date:9/30/2014)... September 30, 2014 OriginOil Inc. (OTC/QB: ... chemical-free process to clean up large quantities of water, ... Riggs Eckelberry reported on the launch of the company's ... site provided by partner STW Resources . , ... barrels per day (bpd) and achieved a 99.8% reduction ...
(Date:9/30/2014)... DEL MAR, Calif. , Sept. 30, 2014 /PRNewswire/ ... devices for women,s health announces its receipt of a ... The FemmyCycle menstrual cup has also received FDA clearance ... Health Canada, and the CE in Europe. This patent is ... design. In conjunction with this issuance, the company is releasing ...
Breaking Biology Technology:Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 2Proove Biosciences is Now Offering the Proove Pain Perception Genetic Test to Help Physicians Assess Patient Pain Tolerance Levels 3CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 2CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 3CORD:USE is Pleased to Announce it has Partnered with Tianhe Stem Cell Biotechnologies, Developer of Cord Blood Stem Cell Therapy Showing Promising Results in Clinical Trials for the Treatment of Diabetes and Autoimmune Diseases 4OriginOil, Inc. Report to Shareholders: Blue Gold in West Texas 2The FemmyCycle 2
... Calif., Dec. 16, 2010 Zenobia Therapeutics, Inc. ... CNS diseases, announced today a research collaboration with ... protein expression and x-ray crystallography for the Parkinson,s ... continue to use its capabilities in fragment-based lead ...
... 15, 2010 /PRNewswire-Asia-FirstCall/ -- China-Biotics, Inc. ("China-Biotics" or "the ... manufacturer and distributor of probiotics products in China, today ... (the "Annual Meeting") will be held on Wednesday, March ... Meeting will be held at the Company,s executive offices ...
... ALEXANDRIA, Va., Dec. 14, 2010 The Association for ... Brief called, "CTE,s Role in Worker Retraining" that ... pivotal role in retraining adults and providing them the skills ... CTE worker retraining programs not only focus on local employment ...
Cached Biology Technology:Zenobia Therapeutics, Inc. Enters Into a Research Collaboration With Lundbeck for the Parkinson's Disease Target LRRK2 2China-Biotics, Inc. to Hold 2010 Annual Meeting of Stockholders on March 9, 2011 2China-Biotics, Inc. to Hold 2010 Annual Meeting of Stockholders on March 9, 2011 3ACTE Releases Issue Brief Outlining Critical Role CTE Plays in Worker Retraining 2
Mouse monoclonal antibody raised against a partial recombinant EOMES. NCBI Entrez Gene ID = EOMES...
...
Rabbit polyclonal to MCP2 ( Abpromise for all tested applications). entrezGeneID: 6355 SwissProtID: P49873...
Mouse monoclonal antibody raised against a partial recombinant AATK. NCBI Entrez Gene ID = AATK...
Biology Products: