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Sustainable new catalysts fueled by a single proton 
Chemists at Boston College have designed a new class of catalysts triggered by the charge of a single proton, the team reports in the most recent edition of the journal Nature. The simple organic molecules offer a sustainable and highly efficient platform for chemical reactions that produce sets of molecules crucial to advances in medicine and the life sc
Chemists at Boston College have designed a new class of catalysts triggered by the charge of a single proton, the team reports in the most recent edition of the journal Nature. The simple organic molecules offer a sustainable and highly efficient platform for chemical reactions that produce sets of molecules crucial to advances in medicine and the life sc
Chemistry
Source: Boston College
Posted on: Thursday, Feb 14, 2013, 2:15pm
Rating: | Views: 1307 | Comments: 0
Source: Boston College
Posted on: Thursday, Feb 14, 2013, 2:15pm
Rating: | Views: 1307 | Comments: 0
Detecting cocaine 'naturally'
Since the beginning of time, living organisms have developed ingenious mechanisms to monitor their environment. As part of an international study, a team of researchers has adapted some of these natural mechanisms to detect specific molecules such as cocaine more accurately and quickly.
Since the beginning of time, living organisms have developed ingenious mechanisms to monitor their environment. As part of an international study, a team of researchers has adapted some of these natural mechanisms to detect specific molecules such as cocaine more accurately and quickly.
Chemistry
Source: University of Montreal
Posted on: Thursday, Feb 14, 2013, 8:45am
Rating: | Views: 1289 | Comments: 0
Source: University of Montreal
Posted on: Thursday, Feb 14, 2013, 8:45am
Rating: | Views: 1289 | Comments: 0
Chemistry trick kills climate controversy
Volcanoes are well known for cooling the climate. But just how much and when has been a bone of contention among historians, glaciologists and archeologists. Now a team of atmosphere chemists, from the Tokyo Institute of Technology and the University of Copenhagen, has come up with a way to say for sure which historic episodes of global cooling were caused by volcanic eruptions. The answer li
Volcanoes are well known for cooling the climate. But just how much and when has been a bone of contention among historians, glaciologists and archeologists. Now a team of atmosphere chemists, from the Tokyo Institute of Technology and the University of Copenhagen, has come up with a way to say for sure which historic episodes of global cooling were caused by volcanic eruptions. The answer li
Environment
Source: University of Copenhagen
Posted on: Tuesday, Feb 12, 2013, 5:15pm
Rating: | Views: 1403 | Comments: 0
Source: University of Copenhagen
Posted on: Tuesday, Feb 12, 2013, 5:15pm
Rating: | Views: 1403 | Comments: 0
Mercury contamination in water can be detected with a mobile phone
Chemists at the University of Burgos (Spain) have manufactured a sheet that changes colour in the presence of water contaminated with mercury. The results can be seen with the naked eye but when photographing the membrane with a mobile phone the concentration of this extremely toxic metal can be quantified.
Chemists at the University of Burgos (Spain) have manufactured a sheet that changes colour in the presence of water contaminated with mercury. The results can be seen with the naked eye but when photographing the membrane with a mobile phone the concentration of this extremely toxic metal can be quantified.
Chemistry
Source: FECYT - Spanish Foundation for Science and Technology
Posted on: Thursday, Feb 07, 2013, 11:00am
Rating: | Views: 1351 | Comments: 0
Source: FECYT - Spanish Foundation for Science and Technology
Posted on: Thursday, Feb 07, 2013, 11:00am
Rating: | Views: 1351 | Comments: 0
Gap geometry grasped
Theoretical physicist Moumita Maiti and colleagues at the Jawaharlal Nehru Centre for Advanced Scientific Research in Bangalore, India, have now implemented an algorithm for analysing void space in sphere packing, where the spheres need not all be the same size. This method, about to be published in EPJ E, could be applied to analyse the geometry of liquids present between multi-sized spheres that
Theoretical physicist Moumita Maiti and colleagues at the Jawaharlal Nehru Centre for Advanced Scientific Research in Bangalore, India, have now implemented an algorithm for analysing void space in sphere packing, where the spheres need not all be the same size. This method, about to be published in EPJ E, could be applied to analyse the geometry of liquids present between multi-sized spheres that
Chemistry
Source: Springer
Posted on: Monday, Feb 04, 2013, 8:30am
Rating: | Views: 1382 | Comments: 0
Source: Springer
Posted on: Monday, Feb 04, 2013, 8:30am
Rating: | Views: 1382 | Comments: 0
Beer's bitter compounds could help brew new medicines
Researchers employing a century-old observational technique have determined the precise configuration of humulones, substances derived from hops that give beer its distinctive flavor.
Researchers employing a century-old observational technique have determined the precise configuration of humulones, substances derived from hops that give beer its distinctive flavor.
Chemistry
Source: University of Washington
Posted on: Wednesday, Jan 30, 2013, 1:15pm
Rating: | Views: 1228 | Comments: 0
Source: University of Washington
Posted on: Wednesday, Jan 30, 2013, 1:15pm
Rating: | Views: 1228 | Comments: 0
DNA and quantum dots: All that glitters is not gold
A team of researchers at the National Institute of Standards and Technology (NIST) has shown that by bringing gold nanoparticles close to the dots and using a DNA template to control the distances, the intensity of a quantum dot's fluorescence can be predictably increased or decreased.* This breakthrough opens a potential path to using quantum dots as a component in better photodetectors, chemical
A team of researchers at the National Institute of Standards and Technology (NIST) has shown that by bringing gold nanoparticles close to the dots and using a DNA template to control the distances, the intensity of a quantum dot's fluorescence can be predictably increased or decreased.* This breakthrough opens a potential path to using quantum dots as a component in better photodetectors, chemical
Chemistry
Source: National Institute of Standards and Technology (NIST)
Posted on: Monday, Jan 28, 2013, 10:00am
Rating: | Views: 1283 | Comments: 0
Source: National Institute of Standards and Technology (NIST)
Posted on: Monday, Jan 28, 2013, 10:00am
Rating: | Views: 1283 | Comments: 0
Love triumphs over hate to make exotic new compound
Northwestern University graduate student Jonathan Barnes had a hunch for creating an exotic new chemical compound, and his idea that the force of love is stronger than hate proved correct. He and his colleagues are the first to permanently interlock two identical tetracationic rings that normally are repelled by each other. Many experts had said it couldn't be done.
Northwestern University graduate student Jonathan Barnes had a hunch for creating an exotic new chemical compound, and his idea that the force of love is stronger than hate proved correct. He and his colleagues are the first to permanently interlock two identical tetracationic rings that normally are repelled by each other. Many experts had said it couldn't be done.
Chemistry
Source: Northwestern University
Posted on: Friday, Jan 25, 2013, 2:15pm
Rating: | Views: 1272 | Comments: 0
Source: Northwestern University
Posted on: Friday, Jan 25, 2013, 2:15pm
Rating: | Views: 1272 | Comments: 0
Just add water: How scientists are using silicon to produce hydrogen on demand
Super-small particles of silicon react with water to produce hydrogen almost instantaneously, according to University at Buffalo researchers.
Super-small particles of silicon react with water to produce hydrogen almost instantaneously, according to University at Buffalo researchers.
Chemistry
Source: University at Buffalo
Posted on: Thursday, Jan 24, 2013, 8:45am
Rating: | Views: 1603 | Comments: 0
Source: University at Buffalo
Posted on: Thursday, Jan 24, 2013, 8:45am
Rating: | Views: 1603 | Comments: 0
'Quadruple helix' DNA discovered in human cells
In 1953, Cambridge researchers Watson and Crick published a paper describing the interweaving 'double helix' DNA structure - the chemical code for all life.
In 1953, Cambridge researchers Watson and Crick published a paper describing the interweaving 'double helix' DNA structure - the chemical code for all life.
Chemistry
Source: University of Cambridge
Posted on: Tuesday, Jan 22, 2013, 12:00pm
Rating: | Views: 1496 | Comments: 0
Source: University of Cambridge
Posted on: Tuesday, Jan 22, 2013, 12:00pm
Rating: | Views: 1496 | Comments: 0
Separating gases using a rigid polymer sieve
Gas separation is crucial for many industrial processes including obtaining nitrogen or oxygen from air and purifying natural gas or hydrogen.
Gas separation is crucial for many industrial processes including obtaining nitrogen or oxygen from air and purifying natural gas or hydrogen.
Chemistry
Source: Cardiff University
Posted on: Friday, Jan 18, 2013, 4:15pm
Rating: | Views: 1385 | Comments: 0
Source: Cardiff University
Posted on: Friday, Jan 18, 2013, 4:15pm
Rating: | Views: 1385 | Comments: 0
New treatment could combat deadly chemical agents
An enzyme treatment which could neutralise the effects of lethal chemicals responsible for the deaths of hundreds of thousands of people across the world has been developed by experts at the University of Sheffield. Organophosphorus agents (OP) are used as pesticides in developing countries and acute poisoning is common because of insufficient control, poor storage, ready availability, and ina
An enzyme treatment which could neutralise the effects of lethal chemicals responsible for the deaths of hundreds of thousands of people across the world has been developed by experts at the University of Sheffield. Organophosphorus agents (OP) are used as pesticides in developing countries and acute poisoning is common because of insufficient control, poor storage, ready availability, and ina
Chemistry
Source: University of Sheffield
Posted on: Monday, Jan 14, 2013, 10:30am
Rating: | Views: 1235 | Comments: 0
Source: University of Sheffield
Posted on: Monday, Jan 14, 2013, 10:30am
Rating: | Views: 1235 | Comments: 0
Graphene oxide soaks up radioactive waste
Graphene oxide has a remarkable ability to quickly remove radioactive material from contaminated water, researchers at Rice University and Lomonosov Moscow State University have found.
Graphene oxide has a remarkable ability to quickly remove radioactive material from contaminated water, researchers at Rice University and Lomonosov Moscow State University have found.
Chemistry
Source: Rice University
Posted on: Wednesday, Jan 09, 2013, 10:45am
Rating: | Views: 1280 | Comments: 0
Source: Rice University
Posted on: Wednesday, Jan 09, 2013, 10:45am
Rating: | Views: 1280 | Comments: 0
Researchers show new level of control over liquid crystals
Directed assembly is a growing field of research in nanotechnology in which scientists and engineers aim to manufacture structures on the smallest scales without having to individually manipulate each component. Rather, they set out precisely defined starting conditions and let the physics and chemistry that govern those components do the rest.
Directed assembly is a growing field of research in nanotechnology in which scientists and engineers aim to manufacture structures on the smallest scales without having to individually manipulate each component. Rather, they set out precisely defined starting conditions and let the physics and chemistry that govern those components do the rest.
Materials Science
Source: University of Pennsylvania
Posted on: Tuesday, Jan 08, 2013, 1:30pm
Rating: | Views: 1279 | Comments: 0
Source: University of Pennsylvania
Posted on: Tuesday, Jan 08, 2013, 1:30pm
Rating: | Views: 1279 | Comments: 0
Steroids that only nature could make on a large scale -- Until now
Scientists at The Scripps Research Institute (TSRI) have achieved a feat in synthetic chemistry by inventing a scalable method to make complex natural compounds known as "polyhydroxylated steroids." These compounds, used in heart-failure medications and other drugs, have been notoriously problematic to synthesize in the laboratory.
Scientists at The Scripps Research Institute (TSRI) have achieved a feat in synthetic chemistry by inventing a scalable method to make complex natural compounds known as "polyhydroxylated steroids." These compounds, used in heart-failure medications and other drugs, have been notoriously problematic to synthesize in the laboratory.
Chemistry
Source: Scripps Research Institute
Posted on: Friday, Jan 04, 2013, 12:15pm
Rating: | Views: 1445 | Comments: 0
Source: Scripps Research Institute
Posted on: Friday, Jan 04, 2013, 12:15pm
Rating: | Views: 1445 | Comments: 0
Dance of water molecules turns fire-colored beetles into antifreeze artists
Certain plants and animals protect themselves against temperatures below freezing with antifreeze proteins. How the larva of the beetle Dendroides canadensis manages to withstand temperatures down to -30 degrees Celsius is reported by an international team of researchers led by Prof. Dr. Martina Havenith from the Department of Physical Chemistry II at the Ruhr-Universität in the journal
Certain plants and animals protect themselves against temperatures below freezing with antifreeze proteins. How the larva of the beetle Dendroides canadensis manages to withstand temperatures down to -30 degrees Celsius is reported by an international team of researchers led by Prof. Dr. Martina Havenith from the Department of Physical Chemistry II at the Ruhr-Universität in the journal
Evolution
Source: Ruhr-University Bochum
Posted on: Thursday, Jan 03, 2013, 10:00am
Rating: | Views: 1277 | Comments: 0
Source: Ruhr-University Bochum
Posted on: Thursday, Jan 03, 2013, 10:00am
Rating: | Views: 1277 | Comments: 0
New data challenge old views about evolution of early life
A research team led by biogeochemists at the University of California, Riverside has tested a popular hypothesis in paleo-ocean chemistry, and proved it false.
A research team led by biogeochemists at the University of California, Riverside has tested a popular hypothesis in paleo-ocean chemistry, and proved it false.
Evolution
Source: University of California - Riverside
Posted on: Wednesday, Jan 02, 2013, 1:00pm
Rating: | Views: 1187 | Comments: 0
Source: University of California - Riverside
Posted on: Wednesday, Jan 02, 2013, 1:00pm
Rating: | Views: 1187 | Comments: 0
Engineers seek ways to convert methane into useful chemicals
Little more than a decade ago, the United States imported much of its natural gas. Today, the nation is tapping into its own natural gas reserves and producing enough to support most of its current needs for heating and power generation, and is beginning to export natural gas to other countries.
Little more than a decade ago, the United States imported much of its natural gas. Today, the nation is tapping into its own natural gas reserves and producing enough to support most of its current needs for heating and power generation, and is beginning to export natural gas to other countries.
Chemistry
Source: University of Virginia
Posted on: Friday, Dec 21, 2012, 4:15pm
Rating: | Views: 1643 | Comments: 0
Source: University of Virginia
Posted on: Friday, Dec 21, 2012, 4:15pm
Rating: | Views: 1643 | Comments: 0
Silver sheds light on superconductor secrets
The first report on the chemical substitution, or doping, using silver atoms, for a new class of superconductor that was only discovered this year, is about to be published in EPJ B. Chinese scientists from Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, discovered that the superconductivity is intrinsic rather than created by impurities in this material with a sandwic
The first report on the chemical substitution, or doping, using silver atoms, for a new class of superconductor that was only discovered this year, is about to be published in EPJ B. Chinese scientists from Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, discovered that the superconductivity is intrinsic rather than created by impurities in this material with a sandwic
Chemistry
Source: Springer
Posted on: Friday, Dec 21, 2012, 11:00am
Rating: | Views: 1439 | Comments: 0
Source: Springer
Posted on: Friday, Dec 21, 2012, 11:00am
Rating: | Views: 1439 | Comments: 0
Physicists achieve elusive 'evaporative cooling' of molecules
Achieving a goal considered nearly impossible, JILA physicists have chilled a gas of molecules to very low temperatures by adapting the familiar process by which a hot cup of coffee cools.
Achieving a goal considered nearly impossible, JILA physicists have chilled a gas of molecules to very low temperatures by adapting the familiar process by which a hot cup of coffee cools.
Chemistry
Source: National Institute of Standards and Technology (NIST)
Posted on: Thursday, Dec 20, 2012, 1:45pm
Rating: | Views: 1270 | Comments: 0
Source: National Institute of Standards and Technology (NIST)
Posted on: Thursday, Dec 20, 2012, 1:45pm
Rating: | Views: 1270 | Comments: 0
A new breed of stable anti-aromatic compound
By synthesizing a stable "antiaromatic" compound, as well as a never before seen intermediate version of that compound, chemists at The University of Texas at Austin have written an important new chapter in the story of modern chemistry.
By synthesizing a stable "antiaromatic" compound, as well as a never before seen intermediate version of that compound, chemists at The University of Texas at Austin have written an important new chapter in the story of modern chemistry.
Chemistry
Source: University of Texas at Austin
Posted on: Wednesday, Dec 19, 2012, 8:00am
Rating: | Views: 1210 | Comments: 0
Source: University of Texas at Austin
Posted on: Wednesday, Dec 19, 2012, 8:00am
Rating: | Views: 1210 | Comments: 0
Nanofibers clean sulfur from fuel
Sulfur compounds in petroleum fuels have met their nano-structured match.
Sulfur compounds in petroleum fuels have met their nano-structured match.
Chemistry
Source: University of Illinois at Urbana-Champaign
Posted on: Tuesday, Dec 18, 2012, 11:45am
Rating: | Views: 1230 | Comments: 0
Source: University of Illinois at Urbana-Champaign
Posted on: Tuesday, Dec 18, 2012, 11:45am
Rating: | Views: 1230 | Comments: 0
Light used to remotely trigger biochemical reactions
Since Edison's first bulb, heat has been a mostly undesirable byproduct of light. Now researchers at Rice University are turning light into heat at the point of need, on the nanoscale, to trigger biochemical reactions remotely on demand.
Since Edison's first bulb, heat has been a mostly undesirable byproduct of light. Now researchers at Rice University are turning light into heat at the point of need, on the nanoscale, to trigger biochemical reactions remotely on demand.
Chemistry
Source: Rice University
Posted on: Friday, Dec 14, 2012, 2:30pm
Rating: | Views: 1460 | Comments: 0
Source: Rice University
Posted on: Friday, Dec 14, 2012, 2:30pm
Rating: | Views: 1460 | Comments: 0
A thin-skinned catalyst for chemical reactions
A chemical nanostructure developed by Boston College researchers behaves much like the pores of the skin, serving as a precise control for a typically stubborn method of catalysis that is the workhorse of industrial chemistry.
A chemical nanostructure developed by Boston College researchers behaves much like the pores of the skin, serving as a precise control for a typically stubborn method of catalysis that is the workhorse of industrial chemistry.
Chemistry
Source: Boston College
Posted on: Friday, Dec 14, 2012, 8:00am
Rating: | Views: 1346 | Comments: 0
Source: Boston College
Posted on: Friday, Dec 14, 2012, 8:00am
Rating: | Views: 1346 | Comments: 0
Chemical analysis reveals first cheese making in Northern Europe in the 6th millennium BC
The first unequivocal evidence that humans in prehistoric Northern Europe made cheese more than 7,000 years ago is described in research by an international team of scientists, led by the University of Bristol, UK, published today in Nature.
The first unequivocal evidence that humans in prehistoric Northern Europe made cheese more than 7,000 years ago is described in research by an international team of scientists, led by the University of Bristol, UK, published today in Nature.
Chemistry
Source: University of Bristol
Posted on: Thursday, Dec 13, 2012, 11:00am
Rating: | Views: 1208 | Comments: 0
Source: University of Bristol
Posted on: Thursday, Dec 13, 2012, 11:00am
Rating: | Views: 1208 | Comments: 0
New twist on using biomass for perfume, cosmetic, personal care products
In a new approach for tapping biomass as a sustainable raw material, scientists are reporting use of a Nobel-Prize-winning technology to transform plant "essential oils" — substances with the characteristic fragrance of the plant — into high-value ingredients for sunscreens, perfumes and other personal care products. The report on the approach, which could open up new economic opportunities for tr
In a new approach for tapping biomass as a sustainable raw material, scientists are reporting use of a Nobel-Prize-winning technology to transform plant "essential oils" — substances with the characteristic fragrance of the plant — into high-value ingredients for sunscreens, perfumes and other personal care products. The report on the approach, which could open up new economic opportunities for tr
Chemistry
Source: American Chemical Society
Posted on: Thursday, Dec 13, 2012, 10:30am
Rating: | Views: 1355 | Comments: 0
Source: American Chemical Society
Posted on: Thursday, Dec 13, 2012, 10:30am
Rating: | Views: 1355 | Comments: 0
Ancient red dye powers new 'green' battery
Rose madder – a natural plant dye once prized throughout the Old World to make fiery red textiles – has found a second life as the basis for a new "green" battery.
Rose madder – a natural plant dye once prized throughout the Old World to make fiery red textiles – has found a second life as the basis for a new "green" battery.
Chemistry
Source: City College of New York
Posted on: Wednesday, Dec 12, 2012, 12:45pm
Rating: | Views: 1402 | Comments: 0
Source: City College of New York
Posted on: Wednesday, Dec 12, 2012, 12:45pm
Rating: | Views: 1402 | Comments: 0
Mining ancient ores for clues to early life
An analysis of sulfide ore deposits from one of the world's richest base-metal mines confirms that oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were actively feeding on sulfate in the ocean and influencing seawater chemistry during that geological time period.
An analysis of sulfide ore deposits from one of the world's richest base-metal mines confirms that oxygen levels were extremely low on Earth 2.7 billion years ago, but also shows that microbes were actively feeding on sulfate in the ocean and influencing seawater chemistry during that geological time period.
Geology
Source: McGill University
Posted on: Tuesday, Dec 11, 2012, 1:00pm
Rating: | Views: 1204 | Comments: 0
Source: McGill University
Posted on: Tuesday, Dec 11, 2012, 1:00pm
Rating: | Views: 1204 | Comments: 0
Seeing in color at the nanoscale
If nanoscience were television, we'd be in the 1950s. Although scientists can make and manipulate nanoscale objects with increasingly awesome control, they are limited to black-and-white imagery for examining those objects. Information about nanoscale chemistry and interactions with light—the atomic-microscopy equivalent to color—is tantalizingly out of reach to all but the most persistent researc
If nanoscience were television, we'd be in the 1950s. Although scientists can make and manipulate nanoscale objects with increasingly awesome control, they are limited to black-and-white imagery for examining those objects. Information about nanoscale chemistry and interactions with light—the atomic-microscopy equivalent to color—is tantalizingly out of reach to all but the most persistent researc
Physics
Source: DOE/Lawrence Berkeley National Laboratory
Posted on: Friday, Dec 07, 2012, 5:30pm
Rating: | Views: 1206 | Comments: 0
Source: DOE/Lawrence Berkeley National Laboratory
Posted on: Friday, Dec 07, 2012, 5:30pm
Rating: | Views: 1206 | Comments: 0
Scientists turn a harmful greenhouse gas into a tool for making pharmaceuticals
A team of chemists at USC has developed a way to transform a hitherto useless ozone-destroying greenhouse gas that is the byproduct of Teflon manufacture and transform it into reagents for producing pharmaceuticals.
A team of chemists at USC has developed a way to transform a hitherto useless ozone-destroying greenhouse gas that is the byproduct of Teflon manufacture and transform it into reagents for producing pharmaceuticals.
Chemistry
Source: University of Southern California
Posted on: Friday, Dec 07, 2012, 5:00pm
Rating: | Views: 1666 | Comments: 0
Source: University of Southern California
Posted on: Friday, Dec 07, 2012, 5:00pm
Rating: | Views: 1666 | Comments: 0
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