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ScienceDaily: Chemistry News
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Chemistry news. Read chemistry articles from research institutes around the world -- organic and inorganic chemistry -- including new techniques and inventions. | More like this | Share
| | Mon, 06 Sep 2010 14:00:00 EDT |
New self-assembling photovoltaic technology repairs itself
Scientists have created a novel set of self-assembling molecules that can turn sunlight into electricity; the molecules can be repeatedly broken down and then reassembled quickly, just by adding or removing an additional solution. |
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| | Fri, 03 Sep 2010 20:00:00 EDT |
Chemists, engineers achieve world record with high-speed graphene transistors
Researchers have developed a new fabrication process for high-speed graphene transistors using a nanowire as the self-aligned gate. This new technique does not produce any appreciable defects in the graphene during fabrication, so the carrier mobility is retained. Also, by using a self-aligned approach with a nanowire as the gate, the group was able to overcome alignment difficulties previously encountered and fabricate short channel devices with unprecedented performance. |
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| | Fri, 03 Sep 2010 14:00:00 EDT |
Experiment records ultrafast chemical reaction with vibrational echoes
To watch a magician transform a vase of flowers into a rabbit, it's best to have a front-row seat. Likewise, for chemical transformations in solution, the best view belongs to the molecular spectators closest to the action. Those special molecules comprise the "first solvation shell," and although it has been known for decades that they can sense and dictate the fate of nearly every chemical reaction, it has been virtually impossible to watch them respond -- until now. |
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| | Fri, 03 Sep 2010 11:00:00 EDT |
Chemists develop simple technique to visualize atomic-scale structures
Researchers have devised a new technique -- using a sheet of carbon just one atom thick -- to visualize the structure of molecules. The technique, which was used to obtain the first direct images of how water coats surfaces at room temperature, can also be used to image a potentially unlimited number of other molecules, including antibodies and other biomolecules. |
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| | Fri, 03 Sep 2010 02:00:00 EDT |
Edible nanostructures: Compounds made from renewable materials could be used for gas storage, food technologies
Sugar, salt, alcohol and a little serendipity led researchers to discover a new class of nanostructures that could be used for gas storage and food and medical technologies. And the compounds are edible. The porous crystals are the first known all-natural metal-organic frameworks (MOFs) that are simple to make. Most other MOFs are made from petroleum-based ingredients, but the new MOFs you can pop into your mouth and eat, and the researchers have. |
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Physorg.com provides the latest news on nanotechnology, nanoscience, nanoelectronics, science and technology. Updated Daily. | Sun, 05 Sep 2010 13:22:32 EST |
New self-assembling photovoltaic technology that repairs itself
Plants are good at doing what scientists and engineers have been struggling to do for decades: converting sunlight into stored energy, and doing so reliably day after day, year after year. Now some MIT scientists have succeeded in mimicking a key aspect of that process. |
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| | Fri, 03 Sep 2010 07:40:02 EST |
Cheaper, better solar cell is full of holes
A new low-cost etching technique developed at the U.S. Department of Energy's National Renewable Energy Laboratory can put a trillion holes in a silicon wafer the size of a compact disc. |
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| | Fri, 03 Sep 2010 06:37:41 EST |
Engineers achieve world record with high-speed graphene transistors
(PhysOrg.com) -- Graphene, a one-atom-thick layer of graphitic carbon, has great potential to make electronic devices such as radios, computers and phones faster and smaller. But its unique properties have also led to difficulties in integrating the material into such devices. |
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| | Thu, 02 Sep 2010 14:54:28 EST |
Researchers develop simple technique to visualize atomic-scale structures
Researchers at the California Institute of Technology (Caltech) have devised a new technique -- using a sheet of carbon just one atom thick -- to visualize the structure of molecules. The technique, which was used to obtain the first direct images of how water coats surfaces at room temperature, can also be used to image a potentially unlimited number of other molecules, including antibodies and other biomolecules. |
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| | Thu, 02 Sep 2010 06:45:54 EST |
Quantum dots track who gets into cell nucleus
(PhysOrg.com) -- UC Berkeley researchers Karsten Weis, Jan Liphardt, and colleagues have used fluorescent probes called quantum dots to determine which molecules get into the nucleus via its nano-pores and which get kicked back out. Their findings could help design drugs that can get through the pores and target a cell's DNA. |
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| | Wed, 01 Sep 2010 18:10:06 EST |
Sensor measures yoctonewton forces fast
(PhysOrg.com) -- Physicists at the National Institute of Standards and Technology have used a small crystal of ions (electrically charged atoms) to detect forces at the scale of yoctonewtons. Measurements of slight forces -one yoctonewton is equivalent to the weight of a single copper atom on Earth -- can be useful in force microscopy, nanoscale science, and tests of fundamental physics theories. |
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| | Wed, 01 Sep 2010 16:10:01 EST |
The perfect nanocube: Precise control of size, shape and composition
(PhysOrg.com) -- With growing interest in using nanoparticles for everything from antibacterial socks to medical imaging to electronic devices, the need to understand the environmental, health and safety risks of these particles also grows. Researchers at the National Institute of Standards and Technology have developed a simple process for producing nanocrystals that will enable studies of certain physical and chemical properties that affect how nanoparticles interact with the world around them. |
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| | Wed, 01 Sep 2010 07:40:01 EST |
Novel nanotechnology collaboration leads to breakthrough in cancer research
(PhysOrg.com) -- One of the most difficult aspects of working at the nanoscale is actually seeing the object being worked on. Biological structures like viruses, which are smaller than the wavelength of light, are invisible to standard optical microscopes and difficult to capture in their native form with other imaging techniques. |
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| | Tue, 31 Aug 2010 14:28:00 EST |
Developments in nanobiotechnology point to medical applications
Two new groundbreaking scientific papers by researchers at UC Santa Barbara demonstrate the synthesis of nanosize biological particles with the potential to fight cancer and other illnesses. The studies introduce new approaches that are considered "green" nanobiotechnology because they use no artificial compounds. |
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Physics Org - Electronic Devices
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Physorg.com provides the latest news on electronics, robotics, hardware, electronic gadgets and science technology. Updated daily. | Wed, 08 Sep 2010 05:05:58 EST |
Microsoft to launch Kinect in Japan in November
Microsoft's long-awaited new Kinect motion-sensing system for the Xbox 360 videogame console will hit the Japanese market on November 20, the company said Wednesday. |
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| | Tue, 07 Sep 2010 15:55:28 EST |
IBM to ship z196 - world's fastest microprocessor
IBM has recently announced details of the world's fastest computer chip -- the microprocessor in a new version of the IBM mainframe that begins shipping to customers on Sept. 10. |
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| | Tue, 07 Sep 2010 07:20:01 EST |
Robot snake 'Uncle Sam' now climbs trees (w/ Video)
(PhysOrg.com) -- Uncle Sam, Carnegie Mellon's latest robotic snake, has been taught to climb trees. The snake is the newest version of "modsnake" created by the Biorobotics Laboratory at the Carnegie Mellon University in Pittsburgh. |
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| | Mon, 06 Sep 2010 14:30:00 EST |
Samsung launches wave 723 smart phone
Samsung Electronics today announced the launch of the Wave 723 (Model : GT-S7230E), the newest smart phone based on its open smart phone platform, Samsung bada. |
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| | Fri, 03 Sep 2010 13:41:54 EST |
Fire hazard forces Toshiba laptop recall
Japanese electronics maker Toshiba has recalled 41,000 laptop computers worldwide because of a fire risk, the US Consumer Product Safety Commission said. |
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| | Fri, 03 Sep 2010 05:40:57 EST |
Samsung, Toshiba take on Apple with 'iPad killers'
Competition to Apple's highly successful iPad hotted up on Thursday as Samsung and Toshiba unveiled rival tablet PCs that they hope will steal some of the Californian giant's thunder. |
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| | Thu, 02 Sep 2010 16:46:15 EST |
Toshiba to Launch the World`s Fastest SDHC Memory Card
Toshiba today announced the launch of 8GB, 16GB and 32GB SDHC UHS-I cards compliant with the SD Memory Card Standard Ver. 3.0 (SD 3.0), UHS104. These new SD cards offer the world`s fastest SDHC data read and write speeds. |
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| | Thu, 02 Sep 2010 09:34:07 EST |
Walkman outsells iPod in Japan for first time
In a rare victory for Sony over arch-rival Apple, the Walkman portable music player outsold the iPod in Japan in monthly sales for the first time in August, a survey showed Thursday. |
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| | Thu, 02 Sep 2010 09:29:10 EST |
Samsung unveils iPad competitor Galaxy Tab
Samsung unveiled on Thursday what the South Korean electronics giant hopes will be a major rival to Apple's highly successful iPad tablet PC. |
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