Nanotechnology Weekly back issues from September 2008:
SAE Test Confirms Fuel Economy Improvements with Cost Effective Ceramic Nano-Particle Conditioner.
Sep 01, 2008 ... A vigorous SAE J1321 Type II fuel consumption test, performed by an independent testing company, has verified the ability of a ceramic nano-technology product from CerMet Lab to increase fuel economy in a heavy-duty truck. "The installation of CerMet Lab Company's ceramic-metal ...
U.S. Takes Top Prize at Prestigious International Youth Water Science Competition.
Sep 01, 2008 ... American high school student, Joyce Chai of Rancho Palos Verdes, Calif., has been named the international winner of the 2008 Stockholm Junior Water Prize (SJWP) - the most prestigious international youth competition for water-related research. Chai received $5,000 and a crystal sculpture ...
Yamaha Unveils 2009 Personal Watercraft Line Setting New Standards for Fuel Efficiency, Performance and Value.
Sep 01, 2008 ... Yamaha Motor Corporation, USA today introduced its 2009 line of WaveRunner(R) personal watercraft at the company's annual dealer meeting held this week in Washington, DC. More than 1000 dealers and international distributors were on hand for the launch of Yamaha's new FZ(TM) ...
Northwestern chemists take gold, mass-produce Beijing Olympic logo.
Sep 01, 2008 ... Northwestern University nanoscientist Chad A. Mirkin has mass-produced the 2008 Summer Olympics logo -- 15,000 times. All the logos take up only one square centimeter of space. Mirkin and his colleagues printed the logos as well as an integrated gold circuit using a new printing ...
Nano sculptures in gold.
Sep 01, 2008 ... This release is also available in German. If someone is charged up, the colour of their face might change, but they don't immediately pull off one of their arms, only to reattach it as a third leg. With some molecules, however, the situation is quite different - for example, in a gold ...
Polymer electric storage, flexible and adaptable.
Sep 01, 2008 ... The proliferation of solar, wind and even tidal electric generation and the rapid emergence of hybrid electric automobiles demands flexible and reliable methods of high-capacity electrical storage. Now a team of Penn State materials scientists is developing ferroelectric polymer-based ...
Self-assembling polymer arrays improve data storage potential.
Sep 01, 2008 ... A new manufacturing approach holds the potential to overcome the technological limitations currently facing the microelectronics and data-storage industries, paving the way to smaller electronic devices and higher-capacity hard drives. "In the past 20 to 30 years, researchers ...
Fast quantum computer building block created.
Sep 01, 2008 ... ANN ARBOR, Mich.---The fastest quantum computer bit that exploits the main advantage of the qubit over the conventional bit has been demonstrated by researchers at University of Michigan, U.S. Naval Research Laboratory and the University of California at San Diego. The ...
Research from Peking University reveals new findings on electron devices.(Report)
Sep 01, 2008 ... According to recent research from Beijing, People's Republic of China, "The design of silicon nanowire MOSFETs (SNWTs) for RF applications is discussed in this paper based on 3-D simulation, including the impacts of the parasitic capacitances and resistance. The results indicate that large ...
Research from M. Bahgat and colleagues provide new insights into materials science.
Sep 01, 2008 ... According to a study from Cairo, Egypt, "Iron(III) vanadate was prepared by calcination of a stoichiometric mixture of vanadium metal and iron oxide. Compacts of the FeVO4 produced were isothermally reduced in pure hydrogen at 400-800 degrees C and the reduction behaviour and kinetics were ...
Studies from W.C. Fang and co-researchers update current data on physical chemistry.
Sep 01, 2008 ... According to recent research published in the Journal of Physical Chemistry C, "Capacitive properties of vanadium oxides on carbon nanotubes (CNTs) have been investigated." "In structural properties, the Raman spectrum shows the characteristic peaks Of V2O5, and XPS analysis ...
Report summarizes science study findings from University of California.
Sep 01, 2008 ... "We investigate the evolution of structures that result when spherical Cd nanoparticles of a few hundred nanometers in diameter react with dissolved molecular sulfur species in solution to form hollow CdS. Over a wide range of temperatures and concentrations, we find that rapid Cd ...
Recent findings from Nanjing University highlight research in science.
Sep 01, 2008 ... According to a study from Nanjing, People's Republic of China, "A thirty-pair AlGaN/AlN distributed Bragg reflector (DBR) targeted at a center wavelength of 320 nm was grown on a 2-inch sapphire substrate by metalorganic chemical vapor deposition (MOCVD). It is free of cracks in the main ...
Report summarizes science study findings from University of Toronto.
Sep 01, 2008 ... "The successful transfer of nanoparticles between solvents is critical for many applications," scientists writing in the journal Acs Nano report. "We evaluated the impact of amphiphilic polymer composition on the size, transfer efficiency, and biocompatibility of ...
Studies from A.G. Repev et al have provided new data on technical physics.
Sep 01, 2008 ... "The structure of the glow of a diffuse discharge in air under atmospheric pressure is studied in detail in the ''rod (cathode)-plane'' geometry for an electrode gap of 10 cm and a cathode tip radius from 3 cm to 2.4 mu m. The amplitude of voltage across the gap was similar to 220 kV for ...
Studies from S.Z. Mortazavi and co-researchers in the area of applied surface science published.
Sep 01, 2008 ... According to recent research from Iran, "The effects of Pd addition to Fe (Pd/Fe = 0, 2.5/7.5, 5/5, 7.5/2.5 and 1) and growth temperatures (920 and 970 degrees C) on density, diameter and growth mode of carbon nanotubes (CNTs) have been studied. SEM observations and TG analyses confirmed ...
New applied physics research from Brown University outlined.
Sep 01, 2008 ... "We have demonstrated the detection of 2.5 mc M target DNA labeled with 16 nm Fe3O4 nanoparticles (NPs) using arrays of magnetic tunnel junction sensors with (001)-oriented MgO barrier layers," investigators in the United States report. "A MTJ sensor bridge was designed to ...
Study results from L.E. Zamora and colleagues broaden understanding of applied physics.
Sep 01, 2008 ... According to recent research from Cali, Colombia, "Two nanostructured powdered alloys, Fe54Al36Nb10 and Fe48Al32Nb20, were milled from elemental powders in a planetary high-energy ball mill for 12, 24 and 36 h. X-ray diffraction (XRD), magnetic measurements and Fe-57 Mossbauer spectrometry ...
Studies in the area of science reported from Kyushu University.
Sep 01, 2008 ... According to recent research from Fukuoka, Japan, "Gold nanorods showing surface plasmon (SP) bands in the near-IR region are used as bioimaging probes that respond to near-IR light in mice. The SP bands of intravenously injected polyethylene glycol-modified gold nanorods are directly ...
Reports summarize physical chemistry research from China University.
Sep 01, 2008 ... "We report an environmentally benign process for the synthesis of nearly monodisperse silver nanoparticles in large quantities via a microwave-assisted ''green'' chemistry method in an aqueous system, using basic amino acids, such as L-lysine or L-arginine, as reducing agents and soluble ...
New thin solid films research reported from V. Dinca and co-authors.
Sep 01, 2008 ... According to a study from Greece, "The development of laser techniques for transferring biomolecules on solid surfaces in a controlled manner has attracted much attention during the last few years. Laser-induced forward transfer (LIFT) is a direct-write laser technique employed in printing ...
Scientists at University of Nebraska describe research in science.
Sep 01, 2008 ... According to recent research from the United States, "A total structural determination of the Au-102(p-MBA)(44) nanocluster has been recently achieved via successful crystallization of the thiolated-protected gold nanocluster (Jadzinsky et al. Science 2007, 318, 430)." "The ...
Research on physical chemistry discussed by scientists at Stanford University.
Sep 01, 2008 ... According to a study from the United States, "The free energy change (Delta G degrees) for the unfolding of immobilized yeast iso-1-cytochrome c (Cyt c) at nanoassemblies was measured by surface plasmon resonance (SPR) spectroscopy. Data show that SPR is sensitive to protein conformational ...
Reports from Tor Vergata University add new data to research in applied physics.
Sep 01, 2008 ... According to recent research from Rome, Italy, "We explore the use of the pair distribution function to study the self-organization process of Ge quantum dots on both nanopatterned and nonpatterned oxidized Si(001) surfaces. Dots formation and ordering upon annealing of a Ge thin film are ...
Scientists at University of Munich describe research in physical chemistry.
Sep 01, 2008 ... "The temporal evolution of photoluminescence in individual single-walled carbon nanotubes (SWNT) under strong laser irradiation is studied and pronounced blinking and bleaching is observed, caused by photoinduced oxidation that subsequently quenches mobile excitons. The nanotubes are ...
Research on applied materials science published by scientists at University of Gottingen.
Sep 01, 2008 ... "Sputter erosion of materials is among the most important techniques for fabricating advanced thin film coatings. Sputter processes are also of considerable relevance for surface polishing down to an atomic scale, nano-structuring of surfaces as dot and ripple patterns and micro-machining ...
Studies from RWTH Aachen University provide new data on materials science.
Sep 01, 2008 ... According to recent research published in the journal Nature Materials, "The identification of materials suitable for non-volatile phase-change memory applications is driven by the need to find materials with tailored properties for different technological applications and the desire to ...
Researchers at Brown University target science and technology.
Sep 01, 2008 ... "The projected increase in the use of compact fluorescent lamps (CFLs) motivates the development of methods to manage consumer exposure to mercury and its environmental release at the end of lamp life. This work characterizes the time-resolved release of mercury vapor from broken CFLs and ...
Researchers from Zhejiang University report on findings in physical chemistry.
Sep 01, 2008 ... "A new and simple method for preparation of hollow calcium carbonate nanospheres under mild conditions is developed. Hollow vaterite nanospheres are achieved by water-induced phase transformation of poly(4-sodium styrene sulfonate)-stabilized amorphous calcium carbonate (PSS-ACC) in ...
New structural chemistry research from A.I. Stadnichenko et al outlined.
Sep 01, 2008 ... According to recent research published in the Journal of Structural Chemistry, "A Cu1O1.7 oxide film containing a large amout of superstoichiometric oxygen was obtained by low-temperature oxidation of metallic copper in the oxygen plasma. An STM study of the film structure showed that ...
Reports from H.Y. Gao and co-researchers add new data to research in science.
Sep 01, 2008 ... "Sapphire substrates were nanopatterned by dry (inductively coupled plasma, ICP) etching to improve the performance of GaN-based light-emitting diodes (LEDs). GaN-based LEDs on nanopatterned sapphire substrates (NPSS) were fabricated by metal organic chemical vapor deposition (MOCVD)," ...
Reports outline science study findings from Selcuk University.
Sep 01, 2008 ... According to a study from Konya, Turkey, "The electronic structure of Quantum Dot (QD), GaAs/AlxGa1-xAs, has been investigated by using a combination of Quantum Genetic Algorithm (QGA) and Hartree-Fock-Roothaan (HFR) method. One-electron system with an on-center impurity is considered by ...
New nanotechnology research from Michigan Technological University discussed.
Sep 01, 2008 ... "We have demonstrated a new technique to transform bulk materials into one-dimensional nanostructures," investigators in the United States report. "We have shown that p-type Si nanotubes (SiNTs) can be grown by a simple dual RF plasma treatment of p-type Si substrates at 500 ...
Research from Peking University reveals new findings on applied materials science.
Sep 01, 2008 ... According to a study from Beijing, People's Republic of China, "In order to well understand the growth mechanism of the diverse morphology of the ZnO nanostructures, in situ analysis of the formation of different ZnO nanostructures, such as nanowires, nanocombs, and nanosheets, has been ...
Research from Nanjing University in the area of physical chemistry published.
Sep 01, 2008 ... According to recent research from Nanjing, People's Republic of China, "Molecular wires are covalently bonded to gold electrodes-to form metal-molecule-metal junctions-by functionalizing each end with a -SH group. The conductance of a wide variety of molecular junctions is studied ...
Reports outline physical chemistry study findings from University of Wollongong.
Sep 01, 2008 ... "Recent pervasive trends in research into metal oxides as anode materials basically fall into two categoriess-(1) the fabrication of nanostructured materials and (2) the development of composites with conductive materials-in order to overcome their practical limitations in commercial use ....
New research on applied physics from University of California summarized.
Sep 01, 2008 ... "Carbon nanostructures, such as carbon nanotubes (CNTs) and carbon nanofibres (CNFs), have the potential, owing to their high thermal conductivity, to be successfully employed in micro- and opto-electronic devices for effective integrated circuits cooling. We address the CNT/CNF compliance ...
Scientists at University of Nebraska detail research in chemical physics.
Sep 01, 2008 ... According to recent research from the United States, "We have carried out numerical simulations on a model of phase separation in a binary mixture in the presence of a third, surface-active component. Based on this model we study phase separation in a quenched solution of gold ...
Findings from Pohang University of Science and Technology in nanotechnology reported.
Sep 01, 2008 ... According to a study from South Korea, "Graphene has emerged as a versatile material with outstanding electronic properties(1-4) that could prove useful in many device applications. Recently, the demonstration of spin injection into graphene and the observation of long spin relaxation ...
Findings in nanotechnology reported from Hewlett-Packard.
Sep 01, 2008 ... According to a study from the United States, "Nanoscale metal/oxide/metal switches have the potential to transform the market for nonvolatile memory and could lead to novel forms of computing. However, progress has been delayed by difficulties in understanding and controlling the coupled ...
Studies from University of Notre Dame update current data on science.
Sep 01, 2008 ... "Graphene oxide suspended in ethanol undergoes reduction as it accepts electrons from UV-irradiated TiO2 suspensions. The reduction is accompanied by changes in the absorption of the graphene oxide, as the color of the suspension shifts from brown to black," researchers in the United ...
Research results from University of California update understanding of applied materials science.
Sep 01, 2008 ... "Inkjet direct writing of functional materials provides a promising pathway towards realization of ultra-low-cost, large-area printed electronics, albeit at the expense of lowered resolution (similar to 20-50 mu m)," investigators in the United States report. "We demonstrate ...
Recent studies from Jilin University add new data to physical chemistry.
Sep 01, 2008 ... "We report a detailed theoretical investigation on the functionalization of semiconducting (10,0) and metallic (6,6) single-walled carbon nanotubes (SWNTs) with a series of metalloporphyrin (MP) complexes (MP = CoP, NiP, CuP, and ZnP) by using density functional theory (DFT) calculations ....
Study findings on nanotechnology are outlined in reports from E. Janik and colleagues.
Sep 01, 2008 ... "This paper reports on the epitaxial growth of single-crystalline ternary Zn1-xMgxTe nanowires covering a broad compositional range of molar fraction 0<= x<= 0.75. The nanowires were grown on (100), (110), and (111) GaAs substrates using a vapor-liquid-solid mechanism," scientists in ...
Study findings on science are outlined in reports from Kuwait University.
Sep 01, 2008 ... According to a study from Kuwait, "Well-aligned ZnO nanorods with a hexagonal cross section of size 200-300 nm and length 1000-1400 nm were grown along their c-axis normal to the stainless steel substrate. The growth was performed for the first time by successive chemical solution ...
New magnetics study findings have been reported by researchers at University of Oxford.
Sep 01, 2008 ... "The magnetic properties of an ultra-soft nanocrystalline alloy are investigated in a wide temperature range. The change in temperature gives rise to changes in the magnetic properties of the ongoing magnetic processes, i.e. the domain rotation, DR and the domain wall movement, DWM, acting ...
Researchers from Rice University detail findings in electron devices.(Report)
Sep 01, 2008 ... According to recent research from the United States, "In this paper, we develop comprehensive modeling and design techniques for carbon nanotube (CNT)-based interconnects, which we utilize to examine the performance, reliability, and fabrication requirements for future nanotube-based ...
New condensed matter findings from D. Ceresoli and co-researchers published.
Sep 01, 2008 ... According to a study from the United States, "Detachment of neutral cations/anions from solid alkali halides can in principle be provoked by donating/subtracting electrons to the surface of alkali halide crystals, but generally constitutes a very endothermic process. However, the amount of ...
Study data from University of Nevada update understanding of fluids research.
Sep 01, 2008 ... According to recent research from the United States, "Interfacial instabilities in an electro-osmotic micro-film flow are studied by deriving an evolution equation for the local film thickness and subsequent numerical integrations. The free-surface electro-osmotic flow has an inherent ...
Research on nanotechnology detailed by scientists at Technical University of Szczecin.
Sep 01, 2008 ... "A detailed study on the influence of the substrate loading (relative to the catalyst content) and supply pressure of the feedstock on the diameter and distribution of the number of walls in carbon nanotubes in alcohol chemical vapor deposition (CVD) is presented," investigators in ...
Technical University publishes research in metals.
Sep 01, 2008 ... "A series of Cp-iron-arene hexafluorophosphate salts have been prepared and pyrolyzed under autogenous pressure," scientists in Germany report. "It was found that the resulting carbon nanostructures were highly dependent on the starting material. Even a small change in the ...
Research from Louisiana State University provides new data about physical chemistry.
Sep 01, 2008 ... According to recent research from the United States, "We present preliminary results obtained in the development of multiple-controlled drug delivery vehicles using magnetic nanoparticle-polymer composites. Two types of magnetic nanoparticle-polymer composites were prepared and tested for ...
Data from University of Freiburg provide new insights into science.
Sep 01, 2008 ... According to recent research from Freiburg, Germany, "The external structure of polymer-wrapped nanotubes resembles that of small nanorods with a core/shell morphology, where the core consists of a self-assembled peptide nanotube surrounded by a soft polymeric coat. The length and the ...
Data on materials science described by researchers at University of Utah.
Sep 01, 2008 ... "Nanosized tungsten carbide powder was prepared by a thermal plasma process using tungsten hexachloride (WCl6) as the precursor. The reduction and carburization of the vaporized precursor by methane-hydrogen mixtures produced nanosized WC1-x powder, which sometimes contained WC and/or W2C ...
Findings from Yokohama National University advance knowledge in physical chemistry.
Sep 01, 2008 ... According to recent research published in the Journal of Physical Chemistry B, "The dispersion of silica nanoparticles made an ionic liquid, 1-ethyl-3-methyl imidazolium bis(trifluoromethanesulfonyl)amide ([C(2)mim][NTf2]), gelled even by the addition of 2-3 wt %, due to the formation of ...
Investigators at Columbia University have published new data on materials science.
Sep 01, 2008 ... According to recent research from the United States, "Microscale fabrication of three-dimensional (3D) extracellular matrices (ECMs) can be used to mimic the often inhomogeneous and anisotropic properties of native tissues(1-3) and to construct in vitro cellular microenvironments(4-6) ....
Research on physical chemistry published by scientists at Nanjing University.
Sep 01, 2008 ... According to a study from Nanjing, People's Republic of China, "A novel nanocomposite with a core-shell structure containing polystyrene (PS), polyaniline (PANI), and Au nanoparticles (NPs) was synthesized. The nanocomposite was characterized by scanning electron microscopy (SEM), ...
Data on nanotechnology discussed by L. Tapaszto and colleagues.
Sep 01, 2008 ... "The practical realization of nanoscale electronics faces two major challenges: the precise engineering of the building blocks and their assembly into functional circuits(1). In spite of the exceptional electronic properties of carbon nanotubes(2), only basic demonstration devices have ...
Research from A. Murugadoss and co-researchers provides new data on physical chemistry.
Sep 01, 2008 ... "We report on the formation of linear assemblies of citrate-stabilized spherical gold nanoparticles (GNPs) in the presence of acetanlide in aqueous medium. The length of the assembly was dependent on the concentration of acetanilide," researchers in India report. "At higher ...
Research from Texas A&M University in the area of applied chemistry published.
Sep 01, 2008 ... According to a study from the United States, "Various decorations, functionalizations, or defects of conjugated benzenoid or graphitic networks are considered, with special attention to the case that the structures are possibly extended in one or two dimensions. This includes various ...
Research conducted at A. Donabidowicz and co-researchers has updated our knowledge about physics.
Sep 01, 2008 ... "We explore the Andreev tunnelling through the strongly correlated quantum dot embedded between the normal and superconducting electrodes," investigators in Lublin, Poland report. "For a small external voltage vertical bar eV vertical bar < Delta(s) the electron arriving from ...
Reports summarize applied surface science study results from Technical University.
Sep 01, 2008 ... "YBO3: Eu3+/Tb3+ nanocrystalline thin films were successfully deposited onto quartz glass substrates by Pechini sol-gel dip-coating method, using rare-earth nitrates and boric acid as starting materials. The crystal structure, morphology, chemical composition and photoluminescence property ...
New applied physics research reported from National Chiao Tung University.
Sep 01, 2008 ... According to a study from Hsinchu, Taiwan, "Nanodiamond (ND) is surrounded by layers of graphite on its surface. This unique structure feature creates unusual fluorescence spectra, which can be used as an indicator to monitor its surface modification." "Meanwhile, the impurity, ...
Recent studies by A. Seif and co-authors add new data to chemistry findings.
Sep 01, 2008 ... "A computational study at the level of density functional theory (DFT) was performed to investigate the influence of Si and C substitution on the N-14 and Al-27 quadrupole coupling constants (C-Q) in the armchair single-walled aluminum nitride nanotube (SWAlNNT). To this aim, a 1 nm AlNNT ...
Research on technical physics described by M.B. Belonenko and colleagues.
Sep 01, 2008 ... "The dynamics of propagation of periodic electromagnetic waves and the related electric current in bundles of carbon nanotubes is studied. The study is based on an analysis of coupled equations for the classical electron distribution function in carbon nanotubes and the Maxwell equations ...