| |
 | Posted by admin |
|
|
|
“Science News Is On the air right now. This is” The Promise of Tomorrow, “Where people keep up with Industry and the Business of Emerging and nanotechnology.” Here is the introduction of the radio show “The Promise of Tomorrow” recorded and broadcast every Sunday by Colonel Mason from Dallas, Texas [1]. The show is dedicated to the news of nanotechnology and other emerging technologies and the impact of discoveries in all areas – energy, materials, health, defense, climate – both aspects of research and development as policy or management . The advantage of the program: it is available online and use free!
Click to continue »
| |
| Posted by admin |
|
|
|
The device created by researchers at the Institute of Nanoscience of the National Council of Research (Nano-Cnr) is capable of measuring the magnetic field with a sensitivity not achieved up to now. This device uses a sheet of graphene as a “spider web” to capture the magnetic molecules with the precision of the single molecule. The results mark a step forward in the field of spintronics and could have applications in achieving high memory density and molecular sensors.
The study, conducted by Andrea Candin Compete and Marco, the Center S3 of the Institute of Nanosciences of Cnr of Modena, with colleagues at the CNRS in Grenoble and Karlsruhe Institute of Technology, was published in the international journal Nano Letters.
Click to continue »
| |
| Posted by admin |
|
|
|
A team of researchers from Nagoya University (Japan), in collaboration with a team of researchers from the University of Aalto (Finland), was successfully fabricated on a plastic substrate, a printed circuit in carbon nanotubes.
The development of flexible printed circuits aroused great interest from industry, especially for the manufacture of electronic paper. Several techniques to fabricate TFT (thin film transistor) are flexible to date. One is to use semiconductor silicon or zinc oxide, but the manufacturing processes are complex (heat treatment, vacuum process). The use of organic materials is also under consideration but they still have a low electron mobility. Another promising solution is the use of carbon nanotubes are known for their high electron mobility.
Until now, scientists could produce transistors with carbon nanotubes by a method of coating from a liquid solution of nanotubes. It is nevertheless difficult, according to researchers, to obtain by this method of thin uniform layers. Moreover, it is difficult to completely get rid of the solvent.
Click to continue »
| |
| Posted by admin |
|
|
|
A completely new type of nanomaterial recently developed could enable a revolutionary new generation of high power rechargeable lithium-ion battery for electric cars and batteries for laptops, mobile phones and other devices.
The new material, developed at Rensselaer Polytechnic Institute, can withstand extremely high speeds for loading and unloading which will cause a rapid deterioration of conventional electrodes currently used in lithium-ion batteries. The success of the nanostructure is due to the composition, size structure and unique material.
The research team led by Nikhil Koratkar, an electrode has shown how this new class could be loaded and unloaded at a speed between 40 and 60 times faster than the conventional battery anodes, showing a comparable energy density. This performance, which in the experiments was maintained over more than 100 continuous cycles of loading / unloading, suggests that this new technology has significant potential for the design and manufacture rechargeable lithium-ion high power and high capacity.
The batteries of this new class would fully recharge a laptop or mobile phone in a few minutes.
Click to continue »
| |
| Posted by admin |
|
|
|
Czech scientists have launched a major initiative in the field of nanotechnology: the project Nanoprogres, [1] which includes sixteen companies and research institutions working together to create a nanotechnology product may be marketed in biomedicine.
The production of artificial tissues is the main objective of the operation and is based on a machine producing nanofiber core-shell “(core-shell) in quantities sufficient for the pilot phase should be relinquished. Because the diameter of the nanofibers, which is measured in nanometers, they can create an excellent framework for cells. Thus, it becomes possible to create artificial tissues as diverse as cartilage, skin and heart tissue.
The nanotechonologies are already used in the production of fabrics, but the major advantage of the new method lies in the tracing system of drug substances in the body. A special system to keep proteins intact tissue is provided, thereby introducing a drug into it. This could not be done until now. The second advantage is the prolonged effect of the product, which is also new, the transmission time of the drug in the body can be extended.
Click to continue »
| |
| Posted by admin |
|
|
|
The electric battery is the world’s smallest rechargeable and is based on lithium. In order to test it and study it better, its creators have produced a version of it in a transmission electron microscope (TEM).
This important development is the work of a team of specialists led by Jianyu Huang of Sandia National Laboratories in the United States. The electron microscope inside which has built such a unique stack is located at the Center for Integrated Nanotechnologies (CINT) dependent on those laboratories and U.S. National Laboratory at Los Alamos.
This new research is enabling real-time study with atomic scale resolution processes of loading and unloading of the stack. As a result, a growing scientific understanding of the fundamental mechanisms by which batteries work.
Click to continue »
| |
| Posted by admin |
|
|
|
The federal government has adopted 12 January 2011 a new action plan for nanotechnology in 2015 (Aktionsplan Nanotechnologien 2015). The directives contained in it, but that are specified budgets associated with them, serve as a general framework to ensure development and use of sustainable and secure economic potential of nanotechnology undeniable. This action plan is a governmental response to the square face increasingly high share of nanotechnology in everyday life.
The action plan is characterized by an interdisciplinary approach and is fully in line with the High-Tech Strategy, the program of strategic coordination of scientific and technological research in Germany. The plan concerns and priority areas identified in this strategy which are related to nanotechnology: energy / climate, health and nutrition, mobility, security and communication.
Click to continue »
| |
| Posted by admin |
|
|
|
It has managed to “watch” the real-time formation of nanoparticles. The achievement is the work of a team of scientists at Argonne National Laboratory, U.S., and the Carnegie Institution in Washington.
The revolutionary technique allows researchers to scrutinize in a remarkably detailed the early stages of the formation of nanoparticles, which have long been a mystery because the only available polling methods unsuitable. The new technique could lead to improved behavior of nanomaterials in applications ranging from solar cells to sensors, to many others.
The shape of nanoparticles and their behavior depends on its architecture, size, structure, texture and chemical properties of its surface. This, in turn, depends greatly on the conditions under which nanoparticles are formed.
Precise control of nanoparticles is difficult. But even more so to reproduce the exact same kinds of nanoparticles from batch to batch, because scientists do not yet know all the conditions that are part of each recipe. Factors such as temperature, pressure, humidity and impurities affect the formation of nanoparticles, and even more factors are discovered.
Click to continue »
| |
| Posted by admin |
|
|
|
Researchers at the Karlsruhe Institute of Technology (KIT) succeeded for the first time to write, read and record information at the nanoscale magnetic form and using an electric field.
Currently, the most common technologies for recording data on a hard drive are to read and write information using a magnetic field. The unit of information on the hard drive, a bit, shall have dimensions as small as possible to increase the capacity of the storage medium. Writing by magnetic field meets however inherent limitations of miniaturization, which encourages scientists to find new ways of recording.
One such alternative is the electromagnetic coupling means information, always stored as magnetic field, are written using an electric field. This phenomenon occurs particularly in insulators complex.
Click to continue »
| |
| Posted by admin |
|
|
|
At 131 years, having survived two world wars, the standard kilogram is more threatened than ever.
The researchers, who want their skin for several decades now, may have finally found a way to get rid of it. The National Institute of Technology Standards and Technology (NIST) appears to have demonstrated that its work will redefine the kilogram at the meeting of the International Committee of Weights and Measures (CIPM) in Paris in October. One such proposal has received a favorable opinion and should be seriously considered at the General Conference of Weights and Measures (CGPM) to be held in October 2011.
Click to continue »
The device created by researchers at the Institute of Nanoscience of the National Council of Research (Nano-Cnr) is capable of measuring the magnetic field with a sensitivity not achieved up to now. This device uses a sheet of graphene as a “spider web” to capture the magnetic molecules with the precision of the single molecule. The results mark a step forward in the field of spintronics and could have applications in achieving high memory density and molecular sensors.
The development of flexible printed circuits aroused great interest from industry, especially for the manufacture of electronic paper. Several techniques to fabricate TFT (thin film transistor) are flexible to date. One is to use semiconductor silicon or zinc oxide, but the manufacturing processes are complex (heat treatment, vacuum process). The use of organic materials is also under consideration but they still have a low electron mobility. Another promising solution is the use of carbon nanotubes are known for their high electron mobility.
This important development is the work of a team of specialists led by Jianyu Huang of Sandia National Laboratories in the United States. The electron microscope inside which has built such a unique stack is located at the Center for Integrated Nanotechnologies (CINT) dependent on those laboratories and U.S. National Laboratory at Los Alamos.
Currently, the most common technologies for recording data on a hard drive are to read and write information using a magnetic field. The unit of information on the hard drive, a bit, shall have dimensions as small as possible to increase the capacity of the storage medium. Writing by magnetic field meets however inherent limitations of miniaturization, which encourages scientists to find new ways of recording.
The researchers, who want their skin for several decades now, may have finally found a way to get rid of it. The National Institute of Technology Standards and Technology (NIST) appears to have demonstrated that its work will redefine the kilogram at the meeting of the International Committee of Weights and Measures (CIPM) in Paris in October. One such proposal has received a favorable opinion and should be seriously considered at the General Conference of Weights and Measures (CGPM) to be held in October 2011.
