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CNS - What are Nanoscale Systems? - Center for Nanoscale Systems - Harvard University - Cambridge, MA - ... The term nanoscale refers to structures that can be measured in nanometers (one billionth of a meter or 0.000000001 meters), from the atomic scale (angstroms) to the cellular scale (tens of microns.) A single nanometer is approximately one hundred thousand times smaller than the thickness of a human hair. Nanoscale systems may be built "from the bottom up", using chemistry and crystal growth techniques, or biological agents; or they may be fabricated "from the top down", using lithographic patterns to control the deposition or removal of material from a surface. Theoretical understanding of nanoscale structures requires, at various points, the use of quantum mechanics, classical mechanics and fluid dynamics, and advanced methods of statistical science, as well as empirical knowledge of chemistry and biological pathways. www.cns.fas.harvard.edu /about/whats_nanoscale.php   (1128 words)

Nanotechnology - Wikipedia, the free encyclopedia These free nanoparticles could be nanoscale species of elements, or simple compounds, but also complex compounds where for instance a nanoparticle of a particular element is coated with another substance (“coated” nanoparticle or “core-shell” nanoparticle). For instance, certain nanoscale materials could enhance the strength and durability of rubber, which might eventually lead to a decrease in demand for natural rubber. For example, demand for titanium may increase as a result of new uses for nanoscale titanium oxides, such as titanium dioxide nanotubes that can be used to produce and store hydrogen for use as fuel. en.wikipedia.org /wiki/Nanotechnology   (5383 words)

Condensed Matter Physics: Physics of Nanoscale Systems The research in the area of "Physics of nanoscale systems" is aimed at obtaining a fundamental knowledge and microscopic description of one-dimensional (1D) systems, with the length of the system essentially exceeding two other size scales. These systems typically show a novel behavior because of quantum mechanical interactions, that are important at the nanoscale, and a poor screening of the Coulomb interaction between electrons, which enhances many-body effects. The complexity of the first principles description of the nanoscale 1D systems inhibits using this method along for studying the applications. www.lehigh.edu /CMP/nanoscale.html   (209 words)

EPA: Federal Register: Nanoscale Materials; Notice of Public Meeting Nanoscale materials are chemical substances containing structures in the length scale of approximately 1 to 100 nanometers, and may have different molecular organizations and properties than the same chemical substances in a larger size. Some of the nanoscale materials are new chemical substances subject to notification requirements under section 5 of the Toxic Substances Control Act (TSCA) and, therefore, are subject to review for potential human health and environmental risks before they are manufactured and enter commerce. EPA is interested in whether commercial activities of nanoscale materials may present a potential risk to human health and the environment because of their unique physical structure and consequent properties. www.epa.gov /fedrgstr/EPA-TOX/2005/May/Day-10/t9324.htm   (1915 words)

Call for Papers: DISCOVERING THE NANOSCALE Philosophers, historians, sociologists of science and technology are invited to submit proposals concerning the significance of nanoscale research. Finally, to the extent that nanoscale and related research may signal a new stage in the history of science, there may arise along with this a qualitatively different set of environmental, ethical, and policy issues. The conference invites NanoScience Studies contributions to all four aspects of "discovering the nanoscale." To allow for close collaboration, no parallel sessions and a maximum of 20 papers (including 4 invited speakers) are planned at each meeting. nsts.nano.sc.edu /events/conf03/cfp.html   (483 words)

Jim Roberto: Weighing In On Nanoscale Research - ORNL Review Vol. 38, No. 3, 2005 ORNL was one of five laboratories that responded to the call, one of three chosen for the second round of the competition, and the first approved for construction. Nanoscale science and technology will revolutionize almost everything we do from basic research to energy and national security. The major areas are materials design and catalysis, where you try to control nanoscale structure and chemistry to get the properties you want for energy applications, and genomics, where you try to control biological systems and processes to the same end. www.ornl.gov /info/ornlreview/v38_3_05/article18.shtml   (1363 words)

Nanoscale Theory And Simulation From the experimental point of view, the fundamental problem in nanoscale technology is that the units are too small to see and manipulate and too large for single-pot synthesis from chemical precursors; consequently, most synthetic nanotechnologies focus on self-assembly of molecules. The components of a nanoscale device may be in the vapor/gas, liquid, or solid phase (or all three phases may be present and interacting through vapor-liquid, solid-liquid, vapor-solid interfaces) at various stages of fabrication assembly and operation. The nanoscale device design computations involve various levels of theory: quantum mechanics; force field development; massive molecular dynamics on all atoms of large systems; and long term molecular dynamics with semi-rigid systems (high frequency modes fixed). www.wtec.org /loyola/nano/us_r_n_d/09_07.htm   (3523 words)

What is Nanotechnology, What are the Nanoscale Dimensions and What are ‘Quantum Effects’? Nanoscale technology is a suite of techniques used to manipulate matter at the scale of atoms and molecules. Everything on the nanoscale  is invisible to the unaided eye and even to all but the most powerful microscopes. Zinc oxide is usually white and opaque; at the nanoscale it becomes transparent. www.azonano.com /Details.asp?ArticleID=1377   (517 words)

National Nanotechnology Initiative   (Site not responding. Last check: 2007-10-11) Encompassing nanoscale science, engineering and technology, nanotechnology involves imaging, measuring, modeling, and manipulating matter at this length scale. At the nanoscale, the physical, chemical, and biological properties of materials differ in fundamental and valuable ways from the properties of individual atoms and molecules or bulk matter. Additional information about nanoscale research in medicine is available from the National Institutes of Health. www.nano.gov /html/facts/whatIsNano.html   (183 words)

Nanoscale Science & Technology Nanoscale science and technology represents a new direction in condensed matter and materials physics for group members to apply their expertise in materials physics, synthesis and characterization. One of the key programmatic connections for nanoscale science in MST-10 is the BES-funded, Center for Integrated Nanotechnology (CINT) that is being built jointly by Sandia and LANL, with facilities housed in both locations. CINT (http://cint.lanl.gov) is a Department of Energy/Office of Science Nanoscale Science Research Center operating as a national user facility devoted to establishing the scientific principles that govern the design, performance, and integration of nanoscale materials. www.lanl.gov /orgs/mst/MST10/nanoscale/index.shtml   (179 words)

Workshop on Nanoscale Order These themes were the focus of a workshop held at the University of Illinois in 2003, a symposium held at Microscopy and Microanalysis in 2004, and the GLAMOR workshop held at Cambridge University in 2005. The 2007 International Workshop on Nanoscale Order in Amorphous and Partially Ordered Solids will bring together researchers in structural characterization and analysis, simulation, and theory of amorphous and partially ordered materials. The broad goal is to provide a forum in which the participants will learn the latest developments, build intellectual bridges between neighboring areas of research, and have ample opportunity to discuss and debate future directions. www.nanoscale-order.org   (310 words)

Research News: A Few Steps Closer to Nanoscale Photonic Technology Yang and his research group are at the forefront in the development of semiconductor nanowires and nanoribbons, single crystals that can measure a millimeter in length, but only a few hundred or less nanometers in width and thickness (about one ten-millionth of an inch). Integrated circuitry on a nanoscale (a thousand times smaller than today’s microcircuits) is a critical requirement for photonic technology. The timeframe for when nanoscale photonic technology will be ready for primetime consumption is difficult to predict, as a number of issues must first be resolved, including the need for a way to chemically synthesize geometrically precise nanowires and nanoribbons in mass quantities. www.lbl.gov /Science-Articles/Archive/MSD-photonic-tech.html   (1207 words)

Nanoscale Magnetic Recording   (Site not responding. Last check: 2007-10-11) The servoing capabilities of the tracking system are being optimized for the capability to position a recording transducer on a 3.5" diameter media disk with a precision of 10nm in a fraction of a millisecond. For example, among the open questions critical to the development of nanoscale probe recording is the ability to fabricate magnetic transducers with the dimensions in the nanometer range as well as the detailed understanding of the recording physics of such nanomagnetic devices. The results of both experimental and theoretical study of micro/nano-magnetic behavior of fabricated nanoscale probe heads will be reported. www.nd.edu /~ee/seminars/nanoscale.html   (328 words)

IBM Research | Press Resources | IBM scientists make breakthrough in nanoscale imaging IBM scientists have achieved a breakthrough in nanoscale magnetic resonance imaging... SAN JOSE, Calif. (July 14, 2004) -- IBM scientists have achieved a breakthrough in nanoscale magnetic resonance imaging (MRI) by directly detecting the faint magnetic signal from a single electron buried inside a solid sample. A laser beam (left) is used to measure precisely the variations in cantilever vibration frequency. domino.research.ibm.com /comm/pr.nsf/pages/news.20040714_nanoscale.html   (971 words)

nanoECR™ - Nanoscale Electrical and Mechanical Test Instruments From Hysitron Incorporated Nanoscale measurements are crucial to understanding these materials and allowing successful development and integration of these materials into real products. Hysitron is the world leader in nanomechanical test instruments and has developed numerous solutions for nanoscale mechanical testing. Hysitron is continuing the tradition of pioneering nanoscale characterization techniques with a novel nanoscale electrical measurement tool. www.azonano.com /Details.asp?ArticleID=1753   (882 words)

Center For Nanoscale Science and Engineering The Center for Nanoscale Science and Engineering (CNSE) was established to achieve this vision by crossing the border of two colleges - the Bourns College of Engineering (BCOE) and the College of Natural and Agricultural Sciences (CNAS), together with strong ties to the Division of Biomedical Sciences. This follows from the fact that biology is the premier example of nanoscale science and engineering, and also because biology is currently the most important driver of the research enterprise. This will be achieved by developing the control of charge, spin and light in nanoscale architectures to create a new set of electronic, photonic, spintronic and mechanical devices and systems. www.cnse.ucr.edu /director.shtml   (826 words)

NanoScale Materials, Inc. is a marketer, developer, producer, and supplier of high performance specialty chemicals, ... NanoScale Materials, Inc. is a marketer, developer, producer, and supplier of high performance specialty chemicals, products, services, and technologies to Customers worldwide. NanoScale Materials, Inc., based in Manhattan, Kansas, is a marketer, developer, producer, and supplier of high performance specialty chemicals, products, services, and technologies to Customers worldwide. NanoScale produces and sells a wide variety of NanoActive brand nanocrystalline materials in forms that include dry powders, granules, and liquid suspensions. www.nanoactive.com   (234 words)

Argonne holds cornerstone ceremony at new Center for Nanoscale Materials Governor Blagojevich stressed the importance of the DOE and state of Illinois partnership in basic research at the nanoscale with strong potential for industrial and commercial applications. The nanoscale refers to a size one-billionth of a meter, or about 70,000 times smaller than the width of a human hair. The Center for Nanoscale Materials is a partnership between the Department of Energy and the State of Illinois as part of DOE's Nanoscale Science Research Center program. www.anl.gov /Media_Center/News/2005/news050506.html   (792 words)

The Office of Science - NANOSCALE To support the synthesis, processing, fabrication and analysis at the nanoscale, the DOE Office of Science is developing, constructing and operating five new Nanoscale Science Research Centers (NSRCs). These facilities are designed to be the Nation’s premier user centers for interdisciplinary research at the nanoscale, serving as the basis for a national program that encompasses new science, new tools and new computing capabilities. Each Center will focus on a different area of nanoscale research, such as materials derived from or inspired by nature; hard and crystalline materials, including the structure of macromolecules; magnetic and soft materials, including polymers and ordered structures in fluids; and nanotechnology integration. www.science.doe.gov /nano   (514 words)

NanoScale Science Education :: Nanotechnology Education Nanotechnology is emerging as one of the most rapidly growing areas of science and crosses the domains of science with applications in biology, physics, materials science, chemistry, and earth science. Things like bacteria and cells are too large for nanoscale science but viruses, atoms, and molecules are typically nanometer sized. Researching nanoscale science in biomotors, nanocontacts, cystic fibrosis, gene therapy, DNS, molecular motors, the nanoManipulator, and the 3-D Force Microscope. ced.ncsu.edu /nanoscale/nanoteched.htm   (534 words)

Nanoscale Bio Analysis Most of the properties of these proteins are nanoscale, be they size or time of operation. His current focus is the blending of micro and nanotechnologies with proteomic analysis and in the development of biologically inspired nanoscale materials for diverse applications. This tutorial will cover analytical methods used to study biological systems at the nanoscale.  Specific emphasis will be placed on separation methods and techniques such as mass spectrometry of proteins and small molecules with a description of the principles of the approach, instrumentation available  and analysis software for proteomics.   www.nsti.org /Nanotech2005/workshops/nanoscale_bio_analysis.html   (354 words)

Nanoscale Science Research Group The quantum dot labeled fiber, about 300 nanometers in diameter, is imaged in solution with an inverted optical microscope simultaneous with quantitative atomic force microscopy manipulation. We are a conglomoration of various groups studying nanoscale science primarily associated with the University of North Carolina at Chapel Hill. To the left you'll find a list of the various Research Topics associated with our group, as well as a number of Project Groups either a part of or associated with NSRG. www.cs.unc.edu /Research/nano   (1135 words)

DYNAMICS OF NANOSCALE SYSTEMS Topic (i) includes theoretical analysis of phase transitions in nanoscale superconducting dots and constrictions and investigations of the structure of normal electronic excitations associated with vortex ensembles and their influence on transport properties of confined superconductors. A progress in physics of relaxation processes in nanoscale magnets is central to engineering of the new generation of memory elements and recording devices (iii). We touch upon the problem of self-assembly, friction in thin lubricating films, and the interplay between the electronic processes and micromechanics of small objects: as an exemplary example we discuss a superconducting grain moving between the two superconducting leads. www.msd.anl.gov /events/NanoTech-Workshops/CNM-theoryminiwkshp.html   (1287 words)

'World's smallest controlled heat source' studies explosives at the nanoscale For instance, voids between crystals of energetic materials are believed to play an important role in the rapid decomposition — or explosion — of the materials. However, a better understanding of explosives at the nanoscale could lead to better control of the synthesis process — and better explosive materials, Weeks said. "Ideally, we want to control the nanoscale properties of energetic materials to understand the physics at short length scales and make the materials safer," he added. www.eurekalert.org /pub_releases/2006-09/giot-sc090806.php   (928 words)

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