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Microscopy News
Quantum Dot Gets Exclusive Licenseto Luminescent Nanoparticles
Nov 4, 1999 — PALO ALTO, Calif., Nov. 4 -- Quantum Dot Corp. has obtained from Indiana University an exclusive worldwide license to develop, manufacture, market and commercialize biological applications of Quantum Dot (Qdot) luminescent nanoparticles. Qdot particles are nanometer-sized bits of semiconductor material that light up like molecular-sized LEDs. They are employed in the detection and bar-coding of biological materials ranging from DNA to proteins in such applications as genetic analysis, drug...
A Start on Parts for Multiphoton Microscopy
Nov 1, 1999 — Ten years ago, in a Cornell University laboratory in Ithaca, N.Y., researchers unveiled the first multiphoton microscope for biological imaging. The biomedical research community quickly realized the virtue of the technology, which demonstrated that...
Crime Labs Advance with Photonics
Nov 1, 1999 — The Pennsylvania Commission on Crime and Delinquency in Harrisburg has awarded $1.8 million in federal block grants to Allegheny County and state crime labs for the purchase of high-tech equipment. Gov. Tom Ridge, who also earmarked nearly $1.7...
Lasers Benefit Data Storage, Near-Field Optics
Nov 1, 1999 — According to researchers from Bell Laboratories in Murray Hill, N.J., lasers with a very small aperture promise to advance near-field optics and to enable data storage densities of more than 500 Gb/in.2, or 100 times the current densities. The team...
Algorithms Improve Spectral Imaging
GÖTTINGEN, Germany — A team of researchers at the Max Planck Institute for Biophysical Chemistry broke the theoretical minimum for resolution by a focusing light microscope. More than 100 years ago, Ernst Abbe laid down the law that the wave nature of light limits...
Imaging Software Compares with Confocal Microscopy
Oct 1, 1999 — Access to confocal microscopes can often be limited and, if there is a usage fee, costly. This and other trade-offs to confocal microscopy’s high-resolution, three-dimensional images has sent some researchers hunting for supplemental analysis...
Lasers Break an Optical Barrier
GÖTTINGEN, Germany — A team of researchers at the Max Planck Institute for Biophysical Chemistry broke the theoretical minimum for resolution by a focusing light microscope. More than 100 years ago, Ernst Abbe laid down the law that the wave nature of light limits...
Water Researchers Perfect Monitoring Techniques
Oct 1, 1999 — Microbiologists in California’s Orange County use a wide range of microscopy and imaging techniques to examine the organisms within the local water supply. New laser and fluorescence systems could offer improvements. Water quality is a primary...
Laser Scans Circuits for Flaws
ALBUQUERQUE, N.M. — Researchers at Sandia National Laboratories have designed a method to fault-test integrated circuits quickly from the back using a laser. Light-induced voltage alteration scans a laser over a chip and watches for voltage changes. It improves both...
Light Scattering Measures Subangstrom Roughness
PORTLAND, Ore. -- PORTLAND, Ore. -- Hard disk drive manufacturers are looking for ways to increase storage capacity on the same hard drive. One way to accomplish this is to manufacture disks with ultrasmooth surfaces, placing requirements on the hard disk of the...
Technique Simplifies 3-D Molecular Research
CAMBRIDGE, Mass. -- CAMBRIDGE, Mass. -- Although scientists commonly use far-field polarization microscopy to measure the orientation of single molecules, it was thought that the technology could obtain only two-dimensional information. Now researchers at the...
Camera Merges Disciplines to Produce 3-D Images
URBANA, Ill. — By combining technologies from medical imaging (computed tomography) and from radio astronomy (interferometry), researchers at the University of Illinois’ Beckman Institute for Advanced Science and Technology have developed a lensless camera...
Free-Electron Laser Emits in the Far-Infrared
Aug 1, 1999 — Scientists have sought a convenient source of radiation in the far-infrared portion of the spectrum for the study of semiconductor nanostructures and constituents in the atmosphere. In an effort to achieve that, researchers from Dartmouth College in...
Laser Sharpens Grinding Wheels
NAGAOKA, Japan — Advances in the electronics industry have led to the development of new materials, such as Al2O3-TiC magnetic heads and special glasses for hard disks and liquid crystal screens. However, these materials are difficult to machine, requiring diamond...
Microscope Records Chemical Makeup
MARTINSRIED, Germany -- MARTINSRIED, Germany -- Researchers at Max Planck Institut fur Biochemie have combined the atomic force microscope’s ability to define surface features with the infrared absorption techniques of spectroscopy to record chemical composition....
Nd:YAG Improves the Fine Print on Fish Tags
Aug 1, 1999 — Roughly 50 percent of the salmon issuing from US Pacific Northwest rivers and streams are raised in fish hatcheries; the number is higher in Canada. Once released, these fish often disappear into the ocean depths for years, carrying a tiny coded...
Optical Coherence Tomography Expands Its Scope
Aug 1, 1999 — Optical coherence tomography, recognized in biomedical circles as an excellent imaging method, is expanding its field of view into materials applications, most recently the nondestructive imaging of composites. Optical coherence tomography...
Quantum Dot Licenses Luminescent Nanoparticle Technology
Jul 7, 1999 — PALO ALTO, Calif., July 7 -- Quantum Dot Corp. has obtained exclusive licenses on luminescent nanoparticles from the Massachusetts Institute of Technology, the University of Melbourne and the Ernest Orlando Lawrence Berkeley National...
And the Academy Award Winner Is -- Carl Zeiss
HOLLYWOOD, Calif. -- HOLLYWOOD, Calif. -- One award-winning Hollywood star has neither perfect skin nor drop-dead beauty. At the latest gathering of the glitterati, a camera lens was recognized for its performance and given a Scientific and Engineering Award from the...
Optical Old-Timer Finds a New Niche
Jul 1, 1999 — Calcium fluoride springs out of the IR to open a window for deep-UV semiconductor lithography. Calcium fluoride (CaF2) is something of a prima donna in the world of optical lens materials. Even where it occurs naturally as the mineral fluorite, the...
One-Angstrom Microscope Achieves Unprecedented Resolution
Jun 11, 1999 — BERKELEY, Calif., June 11 -- Researchers at the Department of Energy's Lawrence Berkeley National Laboratory have made unprecedented images of columns of carbon atoms in a diamond lattice, only 0.89 angstrom apart, using the One-Ångstrom...
Laser Ties Knots in DNA Strands
Jun 3, 1999 — TOKYO, Japan, June 3 -- A Japanese researcher has used a laser to tie knots in strands of DNA. Yasuharu Arai, a graduate student at Keio University in Yokohama, used a microscope equipped with optical tweezers to twist the molecular strings. He...
Spectroscopies Offer Integrated View
LOS ALAMOS, N.M. — Two scientists who integrated data from four spectroscopy methods have found an innovative way to test hazardous materials and aging nuclear weapons stockpiles. The technology will provide images of heterogeneous materials that will allow scientists...
IR Microscope Images Materials at nm-Scale
May 14, 1999 — MARTINSRIED, Germany, May 14 -- Researchers at the Max Planck Institute for Biochemistry have developed a microscope to identify material composition on a nanoscale using infrared (IR) vibrational absorption and a scanning metal tip. The scientists...
Laser Technique Analyzes Microelectronic Thin Films
CAMBRIDGE, Mass. -- CAMBRIDGE, Mass. -- A Massachusetts Institute of Technology researcher has developed a nondestructive, noncontact, laser-based acoustic technique called impulsive stimulated thermal scattering that quickly measures the thickness of thin films used...
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July 2024
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