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Plastics used in some medical devices break down in a previously unrecognized way 
Scientists have discovered a previously unrecognized way that degradation can occur in silicone-urethane plastics that are often considered for use in medical devices. Their study, published in ACS' journal Macromolecules, could have implications for device manufacturers considering use of these plastics in the design of some implantable devices, including cardiac defibrillation leads.
Scientists have discovered a previously unrecognized way that degradation can occur in silicone-urethane plastics that are often considered for use in medical devices. Their study, published in ACS' journal Macromolecules, could have implications for device manufacturers considering use of these plastics in the design of some implantable devices, including cardiac defibrillation leads.
Chemistry
Source: American Chemical Society
Posted on: Thursday, Dec 06, 2012, 12:00pm
Rating: | Views: 1394 | Comments: 0
Source: American Chemical Society
Posted on: Thursday, Dec 06, 2012, 12:00pm
Rating: | Views: 1394 | Comments: 0
Microchoreography: Researchers use synthetic molecule to guide cellular 'dance'
Johns Hopkins researchers have used a small synthetic molecule to stimulate cells to move and change shape, bypassing the cells' usual way of sensing and responding to their environment. The experiment pioneers a new tool for studying cell movement, a phenomenon involved in everything from development to immunity to the spread of cancer.
Johns Hopkins researchers have used a small synthetic molecule to stimulate cells to move and change shape, bypassing the cells' usual way of sensing and responding to their environment. The experiment pioneers a new tool for studying cell movement, a phenomenon involved in everything from development to immunity to the spread of cancer.
Chemistry
Source: Johns Hopkins Medicine
Posted on: Thursday, Dec 06, 2012, 11:45am
Rating: | Views: 1586 | Comments: 0
Source: Johns Hopkins Medicine
Posted on: Thursday, Dec 06, 2012, 11:45am
Rating: | Views: 1586 | Comments: 0
Quasar Reveals Chemistry of Ancient Universe
A cloud of hydrogen gas illuminated by the brightest object in the early universe is helping astronomers understand conditions a few hundred million years after the Big Bang.
A cloud of hydrogen gas illuminated by the brightest object in the early universe is helping astronomers understand conditions a few hundred million years after the Big Bang.
Chemistry
Source: Discovery Channel News
Posted on: Thursday, Dec 06, 2012, 8:24am
Rating: | Views: 1203 | Comments: 0
Source: Discovery Channel News
Posted on: Thursday, Dec 06, 2012, 8:24am
Rating: | Views: 1203 | Comments: 0
Oil and water: An icy interaction when oil chains are short, but steamy when chains are long
Water transforms into a previously unknown structure in between a liquid and a vapor when in contact with alcohol molecules containing long oily chains, according to Purdue University researchers. However, around short oily chains water is more icelike.
Water transforms into a previously unknown structure in between a liquid and a vapor when in contact with alcohol molecules containing long oily chains, according to Purdue University researchers. However, around short oily chains water is more icelike.
Chemistry
Source: Purdue University
Posted on: Tuesday, Dec 04, 2012, 4:00pm
Rating: | Views: 1185 | Comments: 0
Source: Purdue University
Posted on: Tuesday, Dec 04, 2012, 4:00pm
Rating: | Views: 1185 | Comments: 0
A shock to pollution in chemistry
Solvents are omnipresent in the chemical industry, and are a major environmental and safety concern. Therefore the large interest in mechanochemistry: an energy-efficient alternative that avoids using bulk solvents and uses high-frequency milling to drive reactions. Milling is achieved by the intense impact of steel balls in a rapidly moving jar, which hinders the direct observation of underlying
Solvents are omnipresent in the chemical industry, and are a major environmental and safety concern. Therefore the large interest in mechanochemistry: an energy-efficient alternative that avoids using bulk solvents and uses high-frequency milling to drive reactions. Milling is achieved by the intense impact of steel balls in a rapidly moving jar, which hinders the direct observation of underlying
Chemistry
Source: European Synchrotron Radiation Facility
Posted on: Monday, Dec 03, 2012, 4:30pm
Rating: | Views: 1592 | Comments: 0
Source: European Synchrotron Radiation Facility
Posted on: Monday, Dec 03, 2012, 4:30pm
Rating: | Views: 1592 | Comments: 0
Chemists invent powerful toolkit, accelerating creation of potential new drugs
Scientists at The Scripps Research Institute (TSRI) have invented a set of chemical tools that is radically simplifying the creation of potential new drug compounds.
Scientists at The Scripps Research Institute (TSRI) have invented a set of chemical tools that is radically simplifying the creation of potential new drug compounds.
Chemistry
Source: Scripps Research Institute
Posted on: Thursday, Nov 29, 2012, 1:30pm
Rating: | Views: 1702 | Comments: 0
Source: Scripps Research Institute
Posted on: Thursday, Nov 29, 2012, 1:30pm
Rating: | Views: 1702 | Comments: 0
Funneling the sun's energy
The quest to harness a broader spectrum of sunlight's energy to produce electricity has taken a radically new turn, with the proposal of a "solar energy funnel" that takes advantage of materials under elastic strain.
The quest to harness a broader spectrum of sunlight's energy to produce electricity has taken a radically new turn, with the proposal of a "solar energy funnel" that takes advantage of materials under elastic strain.
Chemistry
Source: Massachusetts Institute of Technology
Posted on: Tuesday, Nov 27, 2012, 1:45pm
Rating: | Views: 1184 | Comments: 0
Source: Massachusetts Institute of Technology
Posted on: Tuesday, Nov 27, 2012, 1:45pm
Rating: | Views: 1184 | Comments: 0
Nanoparticles Make Steam without Bringing Water to a Boil
A new trick could reduce the energy needed for many industrial processes and make solar thermal energy much cheaper.Steam is a key ingredient in a wide range of industrial and commercial processes—including electricity generation, water purification, alcohol distillation, and medical equipment sterilization.
A new trick could reduce the energy needed for many industrial processes and make solar thermal energy much cheaper.Steam is a key ingredient in a wide range of industrial and commercial processes—including electricity generation, water purification, alcohol distillation, and medical equipment sterilization.
Chemistry
Source: Technology Review
Posted on: Tuesday, Nov 27, 2012, 10:21am
Rating: | Views: 1134 | Comments: 0
Source: Technology Review
Posted on: Tuesday, Nov 27, 2012, 10:21am
Rating: | Views: 1134 | Comments: 0
Gateway enzyme for chemicals from catnip to cancer drug
Scientists have discovered an enzyme used in nature to make powerful chemicals from catnip to a cancer drug, vinblastine. The discovery opens up the prospect of producing these chemicals cheaply and efficiently.
Scientists have discovered an enzyme used in nature to make powerful chemicals from catnip to a cancer drug, vinblastine. The discovery opens up the prospect of producing these chemicals cheaply and efficiently.
Chemistry
Source: Norwich BioScience Institutes
Posted on: Thursday, Nov 22, 2012, 2:30pm
Rating: | Views: 1448 | Comments: 0
Source: Norwich BioScience Institutes
Posted on: Thursday, Nov 22, 2012, 2:30pm
Rating: | Views: 1448 | Comments: 0
Video: Nanotech device mimics dog's nose to detect explosives
Portable, accurate, and highly sensitive devices that sniff out vapors from explosives and other substances could become as commonplace as smoke detectors in public places, thanks to researchers at University of California, Santa Barbara.
Portable, accurate, and highly sensitive devices that sniff out vapors from explosives and other substances could become as commonplace as smoke detectors in public places, thanks to researchers at University of California, Santa Barbara.
Chemistry
Source: University of California - Santa Barbara
Posted on: Wednesday, Nov 21, 2012, 1:15pm
Rating: | Views: 1691 | Comments: 0
Source: University of California - Santa Barbara
Posted on: Wednesday, Nov 21, 2012, 1:15pm
Rating: | Views: 1691 | Comments: 0
Chemists Concoct the ‘White Noise’ of Smell
If you play sounds of many different frequencies at the same time, they combine to produce neutral "white noise." Neuroscientists say they have created an analogous generic scent by blending odors.
If you play sounds of many different frequencies at the same time, they combine to produce neutral "white noise." Neuroscientists say they have created an analogous generic scent by blending odors.
Chemistry
Source: Wired
Posted on: Wednesday, Nov 21, 2012, 10:36am
Rating: | Views: 1190 | Comments: 0
Source: Wired
Posted on: Wednesday, Nov 21, 2012, 10:36am
Rating: | Views: 1190 | Comments: 0
Hold the ice: Chemists reveal behavior of antifreeze molecules
Chemists at New York University have discovered a family of anti-freeze molecules that prevent ice formation when water temperatures drop below 32 degrees Fahrenheit. Their findings, which are reported in the latest issue of the Proceedings of the National Academy of Sciences (PNAS), may lead to new methods for improving food storage and industrial products.
Chemists at New York University have discovered a family of anti-freeze molecules that prevent ice formation when water temperatures drop below 32 degrees Fahrenheit. Their findings, which are reported in the latest issue of the Proceedings of the National Academy of Sciences (PNAS), may lead to new methods for improving food storage and industrial products.
Chemistry
Source: New York University
Posted on: Wednesday, Nov 21, 2012, 8:00am
Rating: | Views: 1253 | Comments: 0
Source: New York University
Posted on: Wednesday, Nov 21, 2012, 8:00am
Rating: | Views: 1253 | Comments: 0
Using rust and water to store solar energy as hydrogen
How can solar energy be stored so that it can be available any time, day or night, when the sun shining or not? EPFL scientists are developing a technology that can transform light energy into a clean fuel that has a neutral carbon footprint: hydrogen. The basic ingredients of the recipe are water and metal oxides, such as iron oxide, better known as rust. Kevin Sivula and his colleagues purposefu
How can solar energy be stored so that it can be available any time, day or night, when the sun shining or not? EPFL scientists are developing a technology that can transform light energy into a clean fuel that has a neutral carbon footprint: hydrogen. The basic ingredients of the recipe are water and metal oxides, such as iron oxide, better known as rust. Kevin Sivula and his colleagues purposefu
Chemistry
Source: Ecole Polytechnique F�d�rale de Lausanne
Posted on: Wednesday, Nov 14, 2012, 12:15pm
Rating: | Views: 1488 | Comments: 0
Source: Ecole Polytechnique F�d�rale de Lausanne
Posted on: Wednesday, Nov 14, 2012, 12:15pm
Rating: | Views: 1488 | Comments: 0
Scientists discover possible building blocks of ancient genetic systems
Scientists believe that prior to the advent of DNA as the earth's primary genetic material, early forms of life used RNA to encode genetic instructions. What sort of genetic molecules did life rely on before RNA?
Scientists believe that prior to the advent of DNA as the earth's primary genetic material, early forms of life used RNA to encode genetic instructions. What sort of genetic molecules did life rely on before RNA?
Chemistry
Source: Weber State University
Posted on: Wednesday, Nov 14, 2012, 11:15am
Rating: | Views: 1185 | Comments: 0
Source: Weber State University
Posted on: Wednesday, Nov 14, 2012, 11:15am
Rating: | Views: 1185 | Comments: 0
Video: Nanocrystals and nickel catalyst substantially improve light-based hydrogen production
Hydrogen is an attractive fuel source because it can easily be converted into electric energy and gives off no greenhouse emissions. A group of chemists at the University of Rochester is adding to its appeal by increasing the output and lowering the cost of current light-driven hydrogen-production systems.
Hydrogen is an attractive fuel source because it can easily be converted into electric energy and gives off no greenhouse emissions. A group of chemists at the University of Rochester is adding to its appeal by increasing the output and lowering the cost of current light-driven hydrogen-production systems.
Chemistry
Source: University of Rochester
Posted on: Friday, Nov 09, 2012, 4:00pm
Rating: | Views: 1543 | Comments: 0
Source: University of Rochester
Posted on: Friday, Nov 09, 2012, 4:00pm
Rating: | Views: 1543 | Comments: 0
Capturing carbon with clever trapdoors
University of Melbourne Engineers have developed a novel method of collecting and storing carbon dioxide that will reduce the cost of separating and storing carbon dioxide.
University of Melbourne Engineers have developed a novel method of collecting and storing carbon dioxide that will reduce the cost of separating and storing carbon dioxide.
Chemistry
Source: University of Melbourne
Posted on: Friday, Nov 09, 2012, 8:00am
Rating: | Views: 1395 | Comments: 0
Source: University of Melbourne
Posted on: Friday, Nov 09, 2012, 8:00am
Rating: | Views: 1395 | Comments: 0
Sweet diesel! Discovery resurrects process to convert sugar directly to diesel
A long-abandoned fermentation process once used to turn starch into explosives can be used to produce renewable diesel fuel to replace the fossil fuels now used in transportation, University of California, Berkeley, scientists have discovered.
A long-abandoned fermentation process once used to turn starch into explosives can be used to produce renewable diesel fuel to replace the fossil fuels now used in transportation, University of California, Berkeley, scientists have discovered.
Chemistry
Source: University of California - Berkeley
Posted on: Thursday, Nov 08, 2012, 10:45am
Rating: | Views: 1252 | Comments: 0
Source: University of California - Berkeley
Posted on: Thursday, Nov 08, 2012, 10:45am
Rating: | Views: 1252 | Comments: 0
New strategy for fingerprint visualization developed at Hebrew University
Identifying fingerprints on paper is a commonly used method in police forensic work, but unfortunately it is not easy to make those fingerprints visible. Now, scientists at the Hebrew University of Jerusalem have developed a new approach for making such fingerprints more readily readable. The new method, created by a team headed by Prof. Yossi Almog and Prof. Daniel
Identifying fingerprints on paper is a commonly used method in police forensic work, but unfortunately it is not easy to make those fingerprints visible. Now, scientists at the Hebrew University of Jerusalem have developed a new approach for making such fingerprints more readily readable. The new method, created by a team headed by Prof. Yossi Almog and Prof. Daniel
Chemistry
Source: The Hebrew University of Jerusalem
Posted on: Wednesday, Nov 07, 2012, 10:15am
Rating: | Views: 1186 | Comments: 0
Source: The Hebrew University of Jerusalem
Posted on: Wednesday, Nov 07, 2012, 10:15am
Rating: | Views: 1186 | Comments: 0
Breakthrough Offers a Better Way to Make Drugs
An MIT-Novartis collaboration could be a boost for so-called “continuous flow” manufacturing.Despite the huge amounts of money that the pharmaceutical industry spends on drug discovery, it is notoriously old-fashioned in how it actually makes its products. Most drugs are made in batch processes, in which the ingredients, often powders, are added in successive and often disconnected steps. The process resembles a bakery more than it does a modern chemistry lab. That could be about to change.
An MIT-Novartis collaboration could be a boost for so-called “continuous flow” manufacturing.Despite the huge amounts of money that the pharmaceutical industry spends on drug discovery, it is notoriously old-fashioned in how it actually makes its products. Most drugs are made in batch processes, in which the ingredients, often powders, are added in successive and often disconnected steps. The process resembles a bakery more than it does a modern chemistry lab. That could be about to change.
Healthcare
Source: Technology Review
Posted on: Tuesday, Nov 06, 2012, 8:35am
Rating: | Views: 1263 | Comments: 0
Source: Technology Review
Posted on: Tuesday, Nov 06, 2012, 8:35am
Rating: | Views: 1263 | Comments: 0
Researchers make strides toward selective oxidation catalysts
Oxide catalysts, typically formulated as powders, play an integral role in many chemical transformations, including cleaning wastewater, curbing tailpipe emissions, and synthesizing most consumer products.
Oxide catalysts, typically formulated as powders, play an integral role in many chemical transformations, including cleaning wastewater, curbing tailpipe emissions, and synthesizing most consumer products.
Chemistry
Source: Northwestern University
Posted on: Tuesday, Nov 06, 2012, 8:15am
Rating: | Views: 1644 | Comments: 0
Source: Northwestern University
Posted on: Tuesday, Nov 06, 2012, 8:15am
Rating: | Views: 1644 | Comments: 0
New technique enables high-sensitivity view of cellular functions
Researchers at Rensselaer Polytechnic Institute have developed an ultrasensitive method for detecting sugar molecules – or glycans – coming from living organisms, a breakthrough that will make possible a more detailed understanding of cellular functions than either genetic or proteomic (the study of proteins) information can provide. The researchers hope the new technique will revolut
Researchers at Rensselaer Polytechnic Institute have developed an ultrasensitive method for detecting sugar molecules – or glycans – coming from living organisms, a breakthrough that will make possible a more detailed understanding of cellular functions than either genetic or proteomic (the study of proteins) information can provide. The researchers hope the new technique will revolut
Chemistry
Source: Rensselaer Polytechnic Institute
Posted on: Friday, Nov 02, 2012, 11:30am
Rating: | Views: 1339 | Comments: 0
Source: Rensselaer Polytechnic Institute
Posted on: Friday, Nov 02, 2012, 11:30am
Rating: | Views: 1339 | Comments: 0
A heady discovery for beer fans: The first gene for beer foam could improve froth
The yeast used to make beer has yielded what may be the first gene for beer foam, scientists are reporting in a new study. Published in ACS' Journal of Agricultural and Food Chemistry, the discovery opens the door to new possibilities for improving the frothy "head" so critical to the aroma and eye appeal of the world's favorite alcoholic beverage, they say.
The yeast used to make beer has yielded what may be the first gene for beer foam, scientists are reporting in a new study. Published in ACS' Journal of Agricultural and Food Chemistry, the discovery opens the door to new possibilities for improving the frothy "head" so critical to the aroma and eye appeal of the world's favorite alcoholic beverage, they say.
Genetics
Source: American Chemical Society
Posted on: Thursday, Nov 01, 2012, 1:00pm
Rating: | Views: 1329 | Comments: 0
Source: American Chemical Society
Posted on: Thursday, Nov 01, 2012, 1:00pm
Rating: | Views: 1329 | Comments: 0
How silver turns people blue
Researchers from Brown University have shown for the first time how ingesting too much silver can cause argyria, a rare condition in which patients' skin turns a striking shade of grayish blue.
Researchers from Brown University have shown for the first time how ingesting too much silver can cause argyria, a rare condition in which patients' skin turns a striking shade of grayish blue.
Chemistry
Source: Brown University
Posted on: Wednesday, Oct 31, 2012, 10:00am
Rating: | Views: 1441 | Comments: 0
Source: Brown University
Posted on: Wednesday, Oct 31, 2012, 10:00am
Rating: | Views: 1441 | Comments: 0
Additive restores antibiotic effectiveness against MRSA
Researchers from North Carolina State University have increased the potency of a compound that reactivates antibiotics against methicillin-resistant Staphylococcus aureus (MRSA), an antibiotic-resistant form of Staphylococcus that is notoriously difficult to treat. Their improved compound removes the bacteria's antibiotic resistance and allows the antibiotic to once again become effe
Researchers from North Carolina State University have increased the potency of a compound that reactivates antibiotics against methicillin-resistant Staphylococcus aureus (MRSA), an antibiotic-resistant form of Staphylococcus that is notoriously difficult to treat. Their improved compound removes the bacteria's antibiotic resistance and allows the antibiotic to once again become effe
Chemistry
Source: North Carolina State University
Posted on: Tuesday, Oct 23, 2012, 2:45pm
Rating: | Views: 1300 | Comments: 0
Source: North Carolina State University
Posted on: Tuesday, Oct 23, 2012, 2:45pm
Rating: | Views: 1300 | Comments: 0
Energy-sensing switch discovery could have broad implications for Biology & Medicine
Biochemists at The Scripps Research Institute (TSRI) have discovered a genetic sequence that can alter its host gene's activity in response to cellular energy levels. The scientists have found this particular energy-sensing switch in bacterial genes, which could make it a target for a powerful new class of antibiotics. If similar energy-sensing switches are also i
Biochemists at The Scripps Research Institute (TSRI) have discovered a genetic sequence that can alter its host gene's activity in response to cellular energy levels. The scientists have found this particular energy-sensing switch in bacterial genes, which could make it a target for a powerful new class of antibiotics. If similar energy-sensing switches are also i
Chemistry
Source: Scripps Research Institute
Posted on: Monday, Oct 22, 2012, 10:45am
Rating: | Views: 1168 | Comments: 0
Source: Scripps Research Institute
Posted on: Monday, Oct 22, 2012, 10:45am
Rating: | Views: 1168 | Comments: 0
Jelly-like atmospheric particles resist chemical aging
Atmospheric chemists at the Harvard School of Engineering and Applied Sciences (SEAS) have found that when it comes to secondary organic material in the atmosphere, there are two distinct breeds: liquids and jellies.
Atmospheric chemists at the Harvard School of Engineering and Applied Sciences (SEAS) have found that when it comes to secondary organic material in the atmosphere, there are two distinct breeds: liquids and jellies.
Chemistry
Source: Harvard University
Posted on: Wednesday, Oct 17, 2012, 2:15pm
Rating: | Views: 1346 | Comments: 0
Source: Harvard University
Posted on: Wednesday, Oct 17, 2012, 2:15pm
Rating: | Views: 1346 | Comments: 0
New paper reveals fundamental chemistry of plasma/liquid interactions
Though not often considered beyond the plasma television, small-scale microplasmas have great utility in a wide variety of applications. Recently, new developments have begun to capitalize on how these microplasmas interact with liquids in applications ranging from killing bacteria for sterilizing a surface to rapidly synthesizing nanoparticles.
Though not often considered beyond the plasma television, small-scale microplasmas have great utility in a wide variety of applications. Recently, new developments have begun to capitalize on how these microplasmas interact with liquids in applications ranging from killing bacteria for sterilizing a surface to rapidly synthesizing nanoparticles.
Physics
Source: University of Notre Dame
Posted on: Wednesday, Oct 17, 2012, 2:00pm
Rating: | Views: 1265 | Comments: 0
Source: University of Notre Dame
Posted on: Wednesday, Oct 17, 2012, 2:00pm
Rating: | Views: 1265 | Comments: 0
Early-Earth cells modeled to show how first life forms might have packaged RNA
Researchers at Penn State University have developed a chemical model that mimics a possible step in the formation of cellular life on Earth four-billion years ago. Using large "macromolecules" called polymers, the scientists created primitive cell-like structures that they infused with RNA -- the genetic coding material that is thought to precede the appearance of DNA on Earth -- and demonstrated
Researchers at Penn State University have developed a chemical model that mimics a possible step in the formation of cellular life on Earth four-billion years ago. Using large "macromolecules" called polymers, the scientists created primitive cell-like structures that they infused with RNA -- the genetic coding material that is thought to precede the appearance of DNA on Earth -- and demonstrated
Chemistry
Source: Penn State
Posted on: Monday, Oct 15, 2012, 11:30am
Rating: | Views: 1155 | Comments: 0
Source: Penn State
Posted on: Monday, Oct 15, 2012, 11:30am
Rating: | Views: 1155 | Comments: 0
Scientists observe quantum effects in cold chemistry
At very low temperatures, close to absolute zero, chemical reactions may proceed at a much higher rate than classical chemistry says they should – because in this extreme chill, quantum effects enter the picture. A Weizmann Institute team has now confirmed this experimentally; their results would not only provide insight into processes in the intriguing quantum world in which particles act as wave
At very low temperatures, close to absolute zero, chemical reactions may proceed at a much higher rate than classical chemistry says they should – because in this extreme chill, quantum effects enter the picture. A Weizmann Institute team has now confirmed this experimentally; their results would not only provide insight into processes in the intriguing quantum world in which particles act as wave
Physics
Source: Weizmann Institute of Science
Posted on: Friday, Oct 12, 2012, 5:00pm
Rating: | Views: 1350 | Comments: 0
Source: Weizmann Institute of Science
Posted on: Friday, Oct 12, 2012, 5:00pm
Rating: | Views: 1350 | Comments: 0
Filming bacterial life in multicolor as a new diagnostic and antibiotic discovery tool
An international team of scientists led by Indiana University chemist Michael S. VanNieuwenhze and biologist Yves Brun has discovered a revolutionary new method for coloring the cell wall of bacterial cells to determine how they grow, in turn providing a new, much-needed tool for the development of new antibiotics.
An international team of scientists led by Indiana University chemist Michael S. VanNieuwenhze and biologist Yves Brun has discovered a revolutionary new method for coloring the cell wall of bacterial cells to determine how they grow, in turn providing a new, much-needed tool for the development of new antibiotics.
Chemistry
Source: Indiana University
Posted on: Friday, Oct 12, 2012, 8:30am
Rating: | Views: 1385 | Comments: 0
Source: Indiana University
Posted on: Friday, Oct 12, 2012, 8:30am
Rating: | Views: 1385 | Comments: 0
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