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Nano News
University Establishes Nanotech Research Center
Nov 1, 2006 — The University of Colorado at Boulder has received a grant from the Defense Advanced Research Projects Agency (DARPA) to establish a nanotechnology research center, which will be known as the DARPA Focus Center on Nanoscale Science and Technology for Integrated Micro/Nano-Electromechanical Transducers. Hosted by the university’s department of mechanical engineering, the center has garnered $1.53 million for its first-year expenditures through the grant, industrial sponsorships, and matching...
Inaugural SEMI 'Nano U' to Discuss Latest Research
SAN JOSE, Calif., Oct. 30, 2006 -- Nanotechnology experts from top US universities will offer insight into the latest nanotech research during SEMI's inaugural daylong Nano U program on Oct. 31, which precedes this week's SEMI NanoForum 2006 at the San Jose Marriott. SEMI, which...
Snapshot of a Laser Wakefield
PHILADELPHIA, Oct. 30, 2006 -- Speedy plasma waves known as Langmuir waves have been photographed for the first time, using a holographic-strobe camera specially designed for this purpose by physicists at the Universities of Texas and Michigan. The waves are the fastest...
UV Light Reveals Secrets of Nanoelectronic Materials
UNIVERSITY PARK, Pa., Oct. 27, 2006 -- Using the new method of ultraviolet Raman spectroscopy, scientists have been able to measure, for the first time, the conditions at which certain ultrathin materials spontaneously become electrically polarized. The research provides a basis for...
British Nanotech Firm Moving Operations to Albany, NY
ALBANY, N.Y., Oct., 26, 2006 -- A manufacturing firm deeply entrenched in the growing nanotechnology industry will uproot its operations in Britain and move to the Albany, N.Y., region. Aided by $30 million from New York state, Vistec Lithography Inc. will transfer its...
Germany Rejects Coherent Purchase
SANTA CLARA, Calif., Oct. 26, 2006 -- Coherent Inc. announced Wednesday it received a prohibition order from the German Federal Cartel Office (FCO) regarding its proposed acquisition of Excel Technology Inc. Coherent, which makes lasers and other devices used in chips, CDs and...
UDT Becomes Gamma Scientific Div.
SAN DIEGO, Calif., Oct. 26, 2006 -- UDT Instruments will become a division of Gamma Scientific, a manufacturer of light-measurement instruments, and has integrated its R&D, manufacturing and customer-support capabilities into Gamma Scientific's San Diego headquarters, the...
ORNL to Host Nanotech Forum
OAK RIDGE, Tenn., Oct. 13, 2006 -- Nano Nexus 2007, a nanotechnology-oriented forum bringing together academia, industry and budding entrepreneurs will be held April 2-4, 2007, at Oak Ridge National Laboratory (ORNL). It is the first time this type of event has been hosted by a...
ORNL to Host Nanotech Forum Nano Nexus 2007
OAK RIDGE, Tenn., Oct. 13, 2006 -- Nano Nexus 2007, a nanotechnology-oriented forum bringing together academia, industry and budding entrepreneurs will be held April 2-4, 2007, at Oak Ridge National Laboratory (ORNL). It is the first time this type of event has been hosted by a...
Doped Nanorods Produced by Wet Chemistry
Oct 1, 2006 — Two researchers affiliated with Tsinghua University in Beijing and with Anhui Normal University in Wuhu, China, have reported a relatively simple wet chemistry method for the production of lanthanide-doped hexagonal-phase NaYF4 nanorods of uniform...
Photoluminescence Reveals Properties of Single CdS Nanowires
Oct 1, 2006 — Although advancements in CdS nanowire synthesis and device fabrication have led to such optically driven applications as lasers, photodetectors and waveguides, there is little information on the fundamental properties of the nanowires and their...
Quantum-Confined Excitons Produce Luminescence in Silicon Nanowires
Oct 1, 2006 — Light emission from silicon nanowires has been demonstrated previously, but there has not been conclusive evidence that the emissions can be obtained from quantum-confined excitons within the nanowire core. Furthermore, studies have neglected to...
Titanium Nanoparticles Produced by Laser Ablation in Liquid Are Studied
Oct 1, 2006 — As applications of nanoscale materials continue to be developed, a fundamental understanding of how changes in the processes that create those materials affect their resulting properties is required. To that end, A. Welford Castleman Jr. and Justin...
Enabling Subcellular pH Sensing
Sep 1, 2006 — A team of scientists at Rice University in Houston has reported that gold nanoshells — structures on the order of 100 nm in diameter comprising a nonconducting core and an outer layer of gold — can be functionalized to yield surface-enhanced Raman...
Plasma Deposition Yields Thin Films of Optically Active Dyes
Sep 1, 2006 — Scientists in Europe have reported the development of a single-step, room-temperature plasma-enhanced chemical vapor deposition process that yields polymeric thin films incorporating isolated rhodamine molecules. They note that the method is...
Suspended Nanotubes Imaged by Photoluminescence
Sep 1, 2006 — The luminescent response of optically pumped single-walled carbon nanotubes may be used to create images of the structures, report scientists from the Institute for Microstructural Sciences in Ottawa and from the University of Ottawa. Employed as a...
Luminescence of Sulfur-Doped ZnO Nanostructures and Powders Characterized
Aug 1, 2006 — To better understand the potential of sulfur-doped ZnO for use in solid-state lighting applications, investigators from Duke University in Durham, N.C., and from the US Army’s Aviation and Missile Research, Development and Engineering Center at...
Making Gold in a Polyvinyl Alcohol Film
Aug 1, 2006 — Fabricating gold nanoparticles in a polymer film by laser excitation is not new, but the problem has been that the high energy of the laser can damage the thin film. Researchers at Osaka University in Japan were interested in this method, however,...
Near-Field Technique Spectrally Maps Nanoparticles and Viruses
Aug 1, 2006 — Apertureless near-field scanning optical microscopy produces high-resolution optical images by irradiating with a laser an atomic force microscope (AFM) probe in proximity to a sample to create a concentrated near-field spot of illumination at the...
Optical Limiting in Metal Nanowires Studied
Aug 1, 2006 — Optical limiters transmit low-intensity but block high-intensity light, making them suitable for use in applications such as the protection of sensors and the human eye from laser radiation. In the pursuit of alternative material for such devices,...
'Nanoshells' Meter Measures pH in Living Cells
HOUSTON, Texas, July 6, 2006 -- Using unique nanoparticles that convert laser light into useful information, scientists have created the first nanosized pH meter. The discovery presents biologists with the first potential means of measuring accurate pH changes in real-time, inside...
Cryogenic Laser Photolithography Finds Quantum Dot Registration
Jul 1, 2006 — In quantum dot information processing, it is critical to be able to register the position of a single quantum dot with respect to the antinode of a defect (missing hole) in a photonic crystal to create strong coupling and cavity quantum...
Microscopy Probes Dielectric Constant of Nanostructured Films
Jul 1, 2006 — Using near-field scanning optical microscopy, researchers from Argonne National Laboratory in Illinois have imaged the interference patterns of surface plasmons on silver nanostructured thin films, enabling them to measure the local plasmon...
Photonic Crystal Improves Output of Quantum Dot Films
Jul 1, 2006 — The addition of a 2-D photonic crystal to the surface of LED structures boosts the output of these devices by freeing light that otherwise would be trapped inside. A team of scientists from the University of California, Santa Barbara, and from...
Dots Within Dots May Hit the Spot
Jun 1, 2006 — Like nested dolls, quantum dots can reside inside microspheres. Quantum dots are a few nanometers in diameter and have bright, size-dependent emission. A single wavelength can be used to excite dots of different sizes, making multiplexing possible....
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June 2024
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