Structural basis for photoswitching in fluorescent proteins brought into focus
...k state there was an unfavorable interaction where carbon and oxygen atoms were adjacent to each other. "Nathan looked at this and wondered what would happen if an oxygen atom was inserted at a precise place," Remington said. "That would make for a favorable interaction that stabilized the dark state. Based......d, in turn, provides the bacterium with energy and carbon as well as shelter inside specialized cells. Such interdependent relationships are not unusual in the natural world. What is unusual, report Helen Dunbar, Nancy Moran, and colleagues in a new study published this week in the open access journal PLo...UAF researchers garner $6.5 million in NSF grants
...ubsistence resources, and global services, such as carbon sequestration. "IPY: Collaborative Research on Carbon, Water and Energy Balance of the Arctic Landscape at Flagship Observatories and in a Pan-arctic Network" Donie Bret-Harte UAF Institute of Arctic Biology Grant amount: $1.94 million The...Biofuels: More than just ethanol
... the largest greenhouse gas sink followed by soil carbon sequestration. This research shows that farmers will have a variety of biofuel crop options available in the future and that these biofuel crop rotations will have different environmental impacts. Detailed studies of the environmental impact of bi...3.2 billion-year-old surprise: Earth had strong magnetic field
...he isolated the ideal crystals, Tarduno employed a carbon dioxide laser to heat individual crystals much more quickly than older methods, further lessening the chance of contamination. With the Universitys ultra-sensitive SQUID he could measure how much magnetism these individual particles contained. The da...UT Metroplex institutions to collaborate on biomedical research
... fluorescence and hyperspectral imaging system for carbon nanotube vectors" Dr. Harold "Skip" Garner, profe...y at UT Dallas. This project relates to the use of carbon nanotubes as sensors within living cells as well as their potential use in targeted cancer therapies...The global carbon budget -- proper accounting means paying attention to inland waters
...the most basic microbes to our human neighbors, is carbon based. By investigating how carbon cycles through ecosystems, scientists can learn valuable information about food chains, nutrient cyc...Alternative-fuels pioneer receives first-ever $100,000 Lemelson-MIT Award for Sustainability
...of cellulosic biofuels could involve a sustainable carbon cycle with no net emissions of carbon dioxide. These initial insights have served him well over several decades of continuous focused effo...Cells selectively absorb short nanotubes
DNA-wrapped single-walled carbon nanotubes (SWCNTs) shorter than about 200 nanomete...re tiny cylindersessentially single-sheet rolls of carbon atoms. They are many times stronger than steel and possess superlative thermal, optical and electron...Harvard and U. Pittsburgh researchers explain carbon monoxide's anti-inflammatory effects
...e first time that the anti-inflammatory effects of carbon monoxide originate within cells own molecular engi... Specifically, mitochondria react to low levels of carbon monoxide by releasing chemical signals that reduce or shut down the bodys inflammatory response, rai......gen but is ultimately used to transform low-energy carbon dioxide from the air into high-energy compounds like glucose and starch. With chloroplasts being a plant's basic lifeline, it is crucial for a cell to be informed about their functional state. In earlier work, Chory's lab discovered that one import...MIT's ocean model captures diversity of underwater forests
...al cycles and their role in regulating atmospheric carbon dioxide, an important greenhouse gas. The output of the new model, the brainchild of oceanographer Mick Follows, has been tested against real-world patterns of a particular species of phytoplankton, called prochlorococcus, which dominates the plan...Elsevier launches new journal, Marine Genomics
...ic topics will include: biogeochemistry, microbial carbon utilization and metabolic pathways, ecosystem modelling, distribution and phylogenetic characterization of aquatic organisms, genomics applied to microbial ecology, tracking of infectious diseases and environmental stress. The journal will also publi...ACS News Service Weekly PressPac -- March 28, 2007
...-rich materials feeding the reaction often contain carbon monoxide (CO), which is formed during hydrogen production. CO "poisons," or inactivates, the expensive platinum catalysts that convert hydrogen into electricity, reducing efficiency over time and requiring replacement. "Were trying to find a cataly...Plastic that degrades in seawater could be boon for cruise industry and others
...f the plastics, these compounds may include water, carbon dioxide, lactic acid, glycolic acid, succinic acid, caproic acid and L-lysine, all of which can be found in nature, they add. Because the new plastics are denser than saltwater, they have a tendency to sink instead of float, Storey says. That feat...Engineering the heart piece by piece
...trol of conditions such as temperature, oxygen and carbon dioxide levels, nutrients and pH level. This can then encourage the cells to begin producing the kinds of molecules needed to signal to and connect with other cells, and to produce the extracellular matrix that supports cells in tissue. The U-M Ar...Removing a hydrogen fuel-cell roadblock
...en gas contains impurities, such as water vapor or carbon monoxide, it can "gum up" the fuel cells separation membrane, dropping efficiency or halting the process altogether. Pure hydrogen, however, is hard to come by, and thats where palladium enters the picture. "Hydrogen is tough to handle because of t...... a spherical iron (II) atom sandwiched between two carbon plates. The three-piece unit creates a shaft that allows the scissors to rotate and swivel. Driving the motion are two handles strapped with photo-responsive molecules called azobenzene, which not only has the ability to absorb light, but comes in ...Test finds manufactured nanoparticles don't harm soil ecology
...e for breaking down organic material and producing carbon dioxide and other compounds. Results of the study ...o the soil environment, a reduction in the rate of carbon dioxide production, bacterial community activity and size, and enzyme activity would be expected, Tu......and all methane captured for reuse, the savings in carbon dioxide emissions would amount to taking 200,000 to 400,000 cars off the road, according to van Lier. Lettinga said that anaerobic treatment "is becoming the method of choice for the treatment of practically any type of wastewater. We foresee that...