Enzymes carry out fundamental biological processes such as photosynthesis nitrogen fixation and respiration with the help of clusters of metal atoms as active sites But scientists lack basic information about their function because the states ... - Read More
Hydrogen the most abundant element in the cosmos responds to extremes of pressure and temperature differently Under ambient conditions hydrogen is a gaseous two atom molecule As confinement pressure increases the molecules adopt different states ... - Read More
along a larger carbohydrate molecule that makes a cell wall Their work identified the spatial orientation of the GRP proteins in the cluster and showed that the protein carbohydrate complexes stimulate an immune response in ... - Read More
It has been known for several years that sulfuric acid contributes to the formation of tiny aerosol particles which play an important role in the formation of clouds The new study by Kürten et al ... - Read More
A study has pinpointed the likely source of most natural gas contamination in drinking water wells associated with hydraulic fracturing and it's not the source many people may have feared What's more the problem may ... - Read More
A separation method that isolates protein protected gold clusters enables improved sensing of toxic mercury compounds and pesticides Fluorescence based detection of pesticides and other environmentally harmful chemicals is limited by the ability of current ... - Read More
Most of North America's megafauna mastodons short faced bears giant ground sloths saber toothed cats and American camels and horses disappeared close to 13 000 years ago at the end of the Pleistocene period The ... - Read More
Aromatic compounds are found widely in natural resources such as petroleum and biomass and breaking the carbon carbon bonds in these compounds plays an important role in the production of fuels and valuable chemicals from ... - Read More
A gadolinium based material that can be cooled by varying a magnetic field may be useful for cooling low temperature sensors Magnetic refrigeration is attracting attention as an efficient way to chill sensitive scientific instruments ... - Read More
Security forces worldwide rely on sophisticated equipment trained personnel and detection dogs to safeguard airports and other public areas against terrorist attacks A revolutionary new electronic chip with nano sized chemical sensors is about to ... - Read More
The discovery 30 years ago of soccer ball shaped carbon molecules called buckyballs helped to spur an explosion of nanotechnology research Now there appears to be a new ball on the pitch Researchers from Brown ... - Read More
Lithium ion batteries could benefit from a theoretical model created at Rice University and Lawrence Livermore National Laboratory that predicts how carbon components will perform as electrodes The model is based on intrinsic electronic characteristics ... - Read More
Researchers at the University of California Riverside Bourns College of Engineering have developed a three dimensional silicon decorated cone shaped carbon nanotube cluster architecture for lithium ion battery anodes that could enable charging of portable ... - Read More
Images taken by Rice University scientists show that some diamonds are not forever The Rice researchers behind a new study that explains the creation of nanodiamonds in treated coal also show that some microscopic diamonds ... - Read More
Clouds play a critical role in Earth's climate Clouds also are the largest source of uncertainty in present climate models according to the latest report of the Intergovernmental Panel on Climate Change Much of the ... - Read More
For years scientists have had an itch they couldn't scratch Even with the best microscopes and spectrometers it's been difficult to study and identify molecules at the so called mesoscale a region of matter that ... - Read More
Researchers from North Carolina State University and the University of North Carolina at Chapel Hill have developed an ultrasound device that could help identify arterial plaque that is at high risk of breaking off and ... - Read More
Using nanodot technology Berkeley Lab researchers have demonstrated the first size based form of chromatography that can be used to study the membranes of living cells This unique physical approach to probing cellular membrane structures ... - Read More
Inspired by natural materials such as bone a matrix of minerals and other substances including living cells MIT engineers have coaxed bacterial cells to produce biofilms that can incorporate nonliving materials such as gold nanoparticles ... - Read More
Oxygen 16 one of the key elements of life on earth is produced by a series of reactions inside of red giant stars Now a team of physicists including one from North Carolina State University ... - Read More
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