http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (PhysOrg.com) -- Researchers from Helsinki University of Technology (Finland), University of New South Wales (Australia), and University of Melbourne (Australia) have succeeded in building a working transistor, whose active region composes only of a single phosphorus atom in silicon. The results have just been published in Nano Letters. http://www.physorg.com/news179331125.html Nanotechnology Sun, 06 Dec 2009 14:16:01 EST news179331125 (PhysOrg.com) -- A Cornell research team has invented a simple way to make graphene electrical devices by growing the graphene directly onto a silicon wafer. http://www.physorg.com/news177062908.html Nanotechnology Tue, 10 Nov 2009 08:10:01 EST news177062908 Many medical conditions, such as cancer, diabetes and chronic pain, require medications that cannot be taken orally, but must be dosed intermittently, on an as-needed basis, over a long period of time. A few delivery techniques have been developed, using an implanted heat source, an implanted electronic chip or other stimuli as an "on-off" switch to release the drugs into the body. But thus far, none of these methods can reliably do all that's needed: repeatedly turn dosing on and off, deliver consistent doses and adjust doses according to the patient's need. But now, a research team led by Daniel Kohane of Children's Hospital Boston has devised a solution that combines magnetism with nanotechnology. http://www.physorg.com/news176116233.html Nanotechnology Fri, 30 Oct 2009 10:11:06 EST news176116233 The biological safety of nanotechnology, in other words, how the body reacts to nanoparticles, is a hot topic. Researchers at Lund University in Sweden have managed for the first time to carry out successful experiments involving the injection of so-called 'nanowires.' http://www.physorg.com/news175425344.html Nanotechnology Thu, 22 Oct 2009 10:30:01 EST news175425344 Imagine a gift wrapped in paper you really do treasure and want to carefully fold and save. That's because the wrapping paper lights up with words like "Happy Birthday" or "Happy Holidays," thanks to a built in battery -- an amazing battery made out of paper. That's one potential application of a new battery made of cellulose, the stuff of paper, being described in the October 14 issue of ACS' Nano Letters. http://www.physorg.com/news172932619.html Nanotechnology Wed, 23 Sep 2009 13:50:50 EST news172932619 (PhysOrg.com) -- Many medical conditions, such as chronic pain, cancer and diabetes, require medications that cannot be taken orally, but must be dosed intermittently, on an as-needed basis, over a long period of time. A few delivery techniques have been developed, using an implanted heat source, an implanted electronic chip or other stimuli as an "on-off" switch to release the drugs into the body. But thus far, none of these methods can reliably do all that's needed: repeatedly turn dosing on and off, deliver consistent doses and adjust doses according to the patient's need. http://www.physorg.com/news172486374.html Nanotechnology Fri, 18 Sep 2009 10:40:01 EST news172486374 Researchers from Brigham Young University found how to shape customized segments of DNA into tiny letters that spell "BYU." This new method of DNA origami will appear in the aptly titled journal Nano Letters. http://www.physorg.com/news172313885.html Nanotechnology Wed, 16 Sep 2009 09:58:28 EST news172313885 (PhysOrg.com) -- Unwanted blooms of Cladophora algae throughout the Baltic and in other parts of the world are not entirely without a positive side. A group of researchers at the Angstrom Laboratory at Uppsala University have discovered that the distinctive cellulose nanostructure of these algae can serve as an effective coating substrate for use in environmentally friendly batteries. The findings have been published in an article in Nano Letters. http://www.physorg.com/news171807013.html Nanotechnology Thu, 10 Sep 2009 13:40:01 EST news171807013 In a development that holds much promise for the future of solar cells made from nanocrystals, and the use of solar energy to produce clean and renewable liquid transportation fuels, researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory have reported a technique by which the electrical conductivity of nanorod crystals of the semiconductor cadmium-selenide was increased 100,000 times. http://www.physorg.com/news171796742.html Nanotechnology Thu, 10 Sep 2009 10:19:35 EST news171796742 In an advance toward better treatments for the most serious form of brain cancer, scientists in Illinois are reporting development of the first nanoparticles that seek out and destroy brain cancer cells without damaging nearby healthy cells. The study is scheduled for the Sept. 9 issue of ACS' Nano Letters. http://www.physorg.com/news171745889.html Nanotechnology Wed, 09 Sep 2009 20:12:29 EST news171745889 An international team of researchers has designed a new graphite-based, magnetic nano-material that acts as a semiconductor and could help material scientists create the next generation of electronic devices like microchips. http://www.physorg.com/news171126902.html Nanotechnology Wed, 02 Sep 2009 17:00:07 EST news171126902 Researchers in California are reporting development of a so-called "NanoPen" that could provide a quick, convenient way of laying down patterns of nanoparticles - from wires to circuits - for making futuristic electronic devices, medical diagnostic tests, and other much-anticipated nanotech applications. A report on the device, which helps solve a long-standing challenge in nanotechnology, appeared in ACS' Nano Letters. http://www.physorg.com/news171115212.html Nanotechnology Wed, 02 Sep 2009 13:01:13 EST news171115212 (PhysOrg.com) -- Sunflowers track the sun as it moves from east to west. But people usually have to convert sunlight into electricity or heat to put its power to use. http://www.physorg.com/news163348152.html Nanotechnology Thu, 04 Jun 2009 15:30:24 EST news163348152 (PhysOrg.com) -- Berkeley Lab researchers have created a unique ultra-high density memory storage medium that can preserve digital data for a billion years. http://www.physorg.com/news163328683.html Nanotechnology Thu, 04 Jun 2009 10:05:09 EST news163328683 (PhysOrg.com) -- Nanoelectromechanical systems (NEMS) devices have the potential to revolutionize the world of sensors: motion, chemical, temperature, etc. But taking electromechanical devices from the micro scale down to the nano requires finding a means to dissipate the heat output of this tiny gadgetry. http://www.physorg.com/news163076711.html Nanotechnology Mon, 01 Jun 2009 12:06:10 EST news163076711 (PhysOrg.com) -- Packing more digital images, music, and other data onto silicon chips in USB drives and smart phones is like squeezing more strawberries into the same size supermarket carton. The denser you pack, the quicker it spoils. The 10 to 100 gigabits of data per square inch on today`s memory cards has an estimated life expectancy of only 10 to 30 years. And the electronics industry needs much greater data densities for tomorrow`s iPods, smart phones, and other devices. http://www.physorg.com/news162061022.html Nanotechnology Wed, 20 May 2009 17:57:41 EST news162061022 (PhysOrg.com) -- Researchers at UCLA have developed a new method for producing a hybrid graphene-carbon nanotube, or G-CNT, for potential use as a transparent conductor in solar cells and consumer electronic devices. These G-CNTs could provide a cheaper and much more flexible alternative to materials currently used in these and similar applications. http://www.physorg.com/news161456665.html Nanotechnology Wed, 13 May 2009 18:05:20 EST news161456665 (PhysOrg.com) -- Harvard researchers have created a new type of microscopic swimmer: a magnetized spiral that corkscrews through liquids and is able to deliver chemicals and push loads larger than itself. http://www.physorg.com/news161273998.html Nanotechnology Mon, 11 May 2009 15:20:35 EST news161273998 (PhysOrg.com) -- Researchers at the University of Illinois have developed a membrane-penetrating nanoneedle for the targeted delivery of one or more molecules into the cytoplasm or the nucleus of living cells. In addition to ferrying tiny amounts of cargo, the nanoneedle can also be used as an electrochemical probe and as an optical biosensor. http://www.physorg.com/news160142450.html Nanotechnology Tue, 28 Apr 2009 13:02:03 EST news160142450 Kansas State University engineers think the possibilities are deep for a very thin material. http://www.physorg.com/news158850916.html Nanotechnology Mon, 13 Apr 2009 14:16:07 EST news158850916 (PhysOrg.com) -- Our modern age has become accustomed to regular improvements in information technology, says Slava Rotkin, but these advances do not come without a cost. http://www.physorg.com/news158838657.html Nanotechnology Mon, 13 Apr 2009 10:51:40 EST news158838657 (PhysOrg.com) -- Scientists have designed tiny new sensor structures that could be used in novel security devices to detect poisons and explosives, or in highly sensitive medical sensors, according to research published tomorrow (8 April) in Nano Letters. http://www.physorg.com/news158330465.html Nanotechnology Tue, 07 Apr 2009 13:41:38 EST news158330465 The power of magnetism may address a major problem facing bioengineers as they try to create new tissue -- getting human cells to not only form structures, but to stimulate the growth of blood vessels to nourish that growth. http://www.physorg.com/news157731834.html Nanotechnology Tue, 31 Mar 2009 15:25:49 EST news157731834 A team of scientists from Virginia Commonwealth University, the University of Uppsala in Sweden, and the Savannah River National Laboratory have identified that carbon nanostructures can be used as catalysts to store and release hydrogen, a finding that may point researchers toward developing the right material for hydrogen storage for use in cars. http://www.physorg.com/news157127835.html Nanotechnology Tue, 24 Mar 2009 15:37:54 EST news157127835 Researchers at Rice University have created a metamaterial that could light the way toward high-powered optics, ultra-efficient solar cells and even cloaking devices. http://www.physorg.com/news156182270.html Nanotechnology Fri, 13 Mar 2009 16:58:14 EST news156182270 An international research team, involving Professor Rajeev Ahuja at Uppsala University and researchers in the USA, set out to understand the mechanism behind the catalytic effects of carbon nanomaterials. Experimental and theoretical efforts were combined in a synergistic approach and the results, published this week in the ASAP section of the journal Nano Letters, will fasten efforts to develop new catalysts. http://www.physorg.com/news156076440.html Nanotechnology Thu, 12 Mar 2009 11:34:34 EST news156076440 (PhysOrg.com) -- The creation of long platinum nanowires at the University of Rochester could soon lead to the development of commercially viable fuel cells. http://www.physorg.com/news156003211.html Nanotechnology Wed, 11 Mar 2009 15:14:29 EST news156003211 Dual catalysts may be the key to efficiently turning carbon dioxide and water vapor into methane and other hydrocarbons using titania nanotubes and solar power, according to Penn State researchers. http://www.physorg.com/news155471367.html Nanotechnology Thu, 05 Mar 2009 10:30:08 EST news155471367 (PhysOrg.com) -- Metallic nanoparticles and other structures can manipulate light in ways that are not possible with conventional optical materials. In a recent example of this, Rice University researchers discovered that cup-shaped gold nanostructures can bend light in a controllable way. The cups act like three-dimensional nano-antennas. http://www.physorg.com/news155295096.html Nanotechnology Tue, 03 Mar 2009 09:32:07 EST news155295096 In a finding that could help speed the understanding of diseases ranging from cancer to osteoporosis, researchers in Utah are reporting development of a new microscope technique that uses `silver nanoparticle` mirrors to reveal hidden details inside bones, cancer cells, and other biological structures. The method also can help identify structural damage in a wide variety of materials, including carbon-fiber plastics used in airplanes, the researchers say. http://www.physorg.com/news154894368.html Nanotechnology Thu, 26 Feb 2009 18:13:19 EST news154894368