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(38,098 articles)
Popular News
Gold Nanoparticles Prove to be Hot Stuff
GAITHERSBURG, Md., Sept. 6, 2006 -- Gold nanoparticles are highly efficient and sensitive handles for biological molecules being manipulated and tracked by lasers, but they also can heat up fast -- by tens of degrees in just a few nanoseconds -- which could either damage the molecules or help study them, according to scientists at JILA, a joint institute of the National Institute of Standards and Technology (NIST) in Gaithersburg and the University of Colorado at Boulder.A gold nanobead, trapped with 205 mW of infrared laser...
John Kurtzweil Joins Cree as Chief Financial Officer
Sep 6, 2006 — LED chip maker Cree Inc. of Durham, N.C., today announced that John T. Kurtzweil will join the company as executive vice president and chief financial officer, as of Sept. 29. Kurtzweil brings with him over 25 years of corporate financial management...
Biological Switch Created from Spinach Molecule
ATHENS, Ohio, Sept. 6, 2006 -- Scientists have transformed a spinach molecule of chlorophyll-a into a complex biological switch that has possible future applications for green energy, technology and medicine. The study offers the first detailed image of chloropyhll-a -- the...
Harold Craighead to Direct Cornell's Nanobiotechnology Center
Sep 6, 2006 — Harold Craighead, Cornell University's Charles W. Lake Jr. Professor of Engineering and professor of applied and engineering physics, has returned to the post of director of the Cornell Nanobiotechnology Center (NBTC), the university announced. When...
'Strange Quark' Reveals Its Secrets
ADELAIDE, Australia, Sept. 5, 2006 -- An international group of physicists has been able to uncover information about one of the universe's most mysterious particles, the strange quark. Their work will serve as a foundation for new experiments by particle physicists around the world, a...
Tower Semiconductor Appoints Amnon Ben-Yishai as Senior VP of Operations
Sep 5, 2006 — Tower Semiconductor Ltd., a pure-play independent specialty foundry based in Migdal Haemek, Israel, today announced the appointment of Amnon Ben-Yishai as senior vice president of operations, responsible for Tower's fabs, operations and...
PerkinElmer Acquires Avalon Instruments
BOSTON, Sept. 5, 2006 -- PerkinElmer Inc., a health sciences and photonics business, today announced the acquisition of Avalon Instruments Ltd. of Belfast, Northern Ireland. Specific terms of the deal were not disclosed. The acquisition expands and complements...
NeoPhotonics Buys BeamExpress
SAN JOSE, Calif., Sept. 5, 2006 -- NeoPhotonics, a global supplier of fiber-optic component and module solutions for long haul, metro and fiber-to-the-x (FTTx) networks, announced today it is acquiring BeamExpress Inc. of Sunnyvale, Calif. Terms of the deal were not disclosed....
Flextronics to Acquire LCD Maker IDW
SINGAPORE and ROSEVILLE, Calif., Sept. 5, 2006 -- Electronics manufacturing services provider Flextronics International Ltd. of Singapore will acquire Roseville-based LCD maker International DisplayWorks Inc. (IDW) in a stock-for-stock merger valued at approximately $300 million, the two companies...
Philips Semiconductors Becomes NXP
Sep 5, 2006 — Philips Semiconductors CEO Frans van Houten announced Friday the company will now be known as NXP, marking a milestone in its 53-year history as it becomes independent from Royal Philips. The name change announcement follows an agreement between...
Sorting Atoms for Quantum Computing
Sep 1, 2006 — Strings of laser-trapped atoms can be useful for storing and processing quantum information. Recently, researchers at the University of Bonn in Germany used an optical trapping technique to rearrange atoms in such strings with submicrometer...
VECSEL Generates Watt-Level Blue-Green Output
Sep 1, 2006 — Compact and efficient blue-green lasers have numerous potential uses, including in displays, data storage, spectroscopy and biomedical applications. Recently, a collaboration of researchers at the University of Arizona and at Areté Associates, both...
Mirrors play key role in terahertz communications
Sep 1, 2006 — The potential of terahertz technology in communications applications is contingent upon the development of essential devices — such as sources and detectors — and supplementary components — such as filters, modulators and mirrors. Because of the...
Making Fluorescence Correlation Spectroscopy Flexible
Sep 1, 2006 — Fluorescence correlation spectroscopy helps to shed light on the behavior of molecules in aqueous solutions by measuring fluctuations in fluorescence intensity. Typically, data is collected from a single, fixed-focus position within the sample....
Bright LEDs Made on Side Facets of GaN Stripes
Sep 1, 2006 — LEDs are fabricated by growing epitaxial layers along the direction of the crystal polar axis. However, the optical efficiency of these optoelectronic devices decreases with increasing wavelength, due in part to strong internal piezoelectric fields...
Circular Bragg Grating Boosts LED Output
Sep 1, 2006 — A team of scientists at the National Institute of Standards and Technology in Boulder, Colo., has demonstrated that etching a circular Bragg grating into the surface of a semiconductor LED increases light extraction sevenfold. Such structures are of...
Lensless X-ray Microscopy Images Nanocrystals
Sep 1, 2006 — Scientists at the University of Illinois in Urbana have used coherent hard x-rays to produce 3-D images of 750-nm lead nanocrystals with a spatial resolution of 40 nm. With improved detectors and more powerful sources of coherent x-rays, they...
Images Reveal Shape, Orientation of Nanoparticles
Sep 1, 2006 — Using a variant of confocal microscopy that illuminates samples with higher-order laser modes, investigators at Universität Tübingen in Germany have produced images of gold nanospheres and nanorods that offer information about both the shape and the...
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...
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...
Lasers Serve the Muse
Sep 1, 2006 — Paula Dawson, a pioneer and reknowned exponent of using holographic images as a fine art form, has been exhibiting laser-based works in galleries and museums worldwide since the late 1970s. Her triptych, Eidola Suite, an installation on view in the...
ARRAY SPECTROMETER
Sep 1, 2006 — A full-color brochure from Instrument Systems GmbH describes the CAS 140CT array spectrometer, including its back-illuminated CCDs and extended InGaAs detectors, which provide a spectral range from 200 to 2150 nm. Showing screen shots, it covers...
MALDI RECIPES
Sep 1, 2006 — Researchers at the National Institute of Standards and Technology (NIST) have added 150 methods to a database of 255 procedures for analyzing specific synthetic polymers using matrix-assisted laser desorption/ionization (MALDI) mass spectrometry....
ASTRONOMY FILTERS
Sep 1, 2006 — The brochure “Filters for Astronomy & Aerospace” from Omega Optical Inc. details the company’s Bessell photometric sets, which are polished to transmitted wavefront, wedge and flatness specifications, and its custom filters, which are available...
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