Chemistry articlesResearchers identify a new step in photosynthesis
Using sunlight to power our homes and offices is an unaccomplished dream due to the still inefficient technology for a better use of solar energy. The study of photosynthesis in plants could provide new clues by explaining how they absorb almost 100% of the sunlight reaching them, and how they transform it into other forms of energy.
Crystal sponges excel at sopping up CO2
Since the Industrial Revolution, levels of carbon dioxide---a major contributor to the greenhouse effect---have been on the rise, prompting scientists to search for ways of counteracting the trend. One of the main strategies is removing carbon dioxide (CO2) from the flue exhaust of power plants, using porous materials that take up the gas as it travels up the flue.
Nano-cages 'fill up' with hydrogen
A "cagey" strategy to stack more hydrogen in nanoscale scaffoldings made of zinc-based boxes may yield a viable approach to storing hydrogen and, ultimately, replacing fossil fuels in future automobiles, according to new results from National Institute of Standards and Technology (NIST) researchers.
Shimmering colours which change with temperature
Max Planck researchers in Potsdam, Germany expand the tool kit of colloid particles and make new coloured finishes possible.
Coffee jump-starts short-term memory
For the first time, researchers have demonstrated that caffeine modulates short-term working memory. The study was presented at the annual meeting of the Radiological Society of North America (RSNA).
Picking particles faster than one at a time
Computer scientists and biologists at the Department of Energy's Lawrence Berkeley National Laboratory have developed software that can select tens of thousands of high-quality images of biological molecules from electron microgaphs, rapidly and automatically, with accuracy approaching that of experienced human analysts.
Poison + water = hydrogen
Take a pot of scalding water, remove all the oxygen, mix in a bit of poisonous carbon monoxide, and add a pinch of hydrogen gas. It sounds like a recipe for a witch's brew. It may be, but it is also the preferred environment for a microbe known as Carboxydothermus hydrogenoformans.
Male elephants woo females with precise chemistry
The exact chemical blend of a pheromone emitted by older male elephants in musth influences both a female elephant's interest in mating and how other surrounding elephants behave, a new study has found.
Chemists probe combustion process
Chemists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, working with colleagues at Stony Brook University, have developed a unique experimental technique to measure the flow of energy inside a molecule in the process of breaking apart. The chemists' experiments provide a critical test of theories used in computer models of combustion, which are used, for instance, by combustion engineers to design more fuel-efficient and less polluting machines.
Researcher unveils world's largest drug database
Until the 1980s, most of our knowledge about drugs and drug targets could fit into a few encyclopedic books. But with the recent explosion in biological and chemical knowledge, that information is now scattered over thousands of textbooks, subscription databases and print journals. Until now. Thanks to the work by University of Alberta researchers, this previously inaccessible drug information is now consolidated and available freely online.
'Computer-chemistry' yields new insight into a puzzle of cell division
Duke University biochemists aided by Duke computer scientists and computational chemists have identified the likely way two key enzymes dock in an intricate three-dimensional puzzle-fit to regulate cell division. Solving the docking puzzle could lead to anticancer drugs to block the runaway cell division behind some cancers, said the researchers.
Mining for gems in the fungal genome
Ever since penicillin, a byproduct of a fungal mold, was discovered in 1929, scientists have scrutinized fungi for other breakthrough drugs. As reported Jan. 20 in the Journal of Chemistry and Biology, a team led by a University of Wisconsin-Madison researcher has developed a new method that may speed the ongoing quest for medically useful compounds in fungi.
Yogurt bugs that make antiviral drugs
Researchers have come up with a novel delivery system for anti-AIDS drugs: milk-curdling bacteria used to make yogurt and cheese.
Of mice, men, trees and the global carbon cycle
A team led by a University of Minnesota researcher has found a universal rule that regulates the metabolism of plants of all kinds and sizes and that may also offer a key to calculating their carbon dioxide emissions, a number that must be known precisely in order to construct valid models of global carbon dioxide cycling.
A bathroom that cleans itself
Cleaning bathrooms may become a thing of the past with new coatings that will do the job for you.
Study explains unexpected conductivity of nanoscale silicon
When graduate student Pengpeng Zhang successfully imaged a piece of silicon just 10 nanometers-or a millionth of a centimeter-in thickness, she and her University of Wisconsin-Madison co-researchers were puzzled. According to established thinking, the feat should be impossible because her microscopy method required samples that conduct electricity.
Professor discovers better way to desalinate water
Chemical engineer Kamalesh Sirkar, PhD, a distinguished professor at New Jersey Institute of Technology (NJIT) and an expert in membrane separation technology, is leading a team of researchers to develop a breakthrough method to desalinate water.
Researchers develop low-density, environmentally friendly foam
Researchers at Sandia National Laboratories in Livermore, Calif., have developed a low-density, energy-absorbing foam that, among other potential applications, could help avoid a complete wipeout for the nation's $200 million surfboard manufacturing market.
Scientists capture the speediest ever motion in a molecule
The fastest ever observations of protons moving within a molecule open a new window on fundamental processes in chemistry and biology, researchers report in the journal Science.
New turbulence findings
In a simple world rivers would flow in straight lines, every airplane ride would be smooth, and we would know the daily weather 10 years into the future. But the world is not simple -- it is turbulent.