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Microscopy News
Laser Tracks Movement of Bacteria
BALTIMORE -- BALTIMORE -- A laser-tracking device has allowed researchers to follow bacterial movement with near-atomic resolution, which has led to a better understanding of how bacteria spread among cells. Researchers at Johns Hopkins University created a device to track Listeria monocytogenes while inside a host cell. Studying their movement could help scientists understand how bacteria spread among cells. The group studied Listeria monocytogenes, which can cause a severe form of food p...
Quantum Dots Suitable for Computing
SANTA BARBARA, Calif. -- SANTA BARBARA, Calif. -- A new study has found that quantum dots not only behave according to the predictions of quantum physics, but do so at room temperature. The discovery, which proves that the emission of quantum dots is binary in nature,...
Holography Monitors Microscopic Marine Life
ABERDEEN, UK -- ABERDEEN, UK -- Scientists estimate that 80 percent of the oxygen in the atmosphere is produced by phytoplankton, ocean-dwelling one-celled photosynthesizing organisms. It seems understandable, therefore, that we would want to investigate the...
Microscopy Probes Ultrafast Dynamics
GÖTTINGEN, Germany -- GÖTTINGEN, Germany -- Researchers at the Max Planck Institute for Biophysical Chemistry have introduced a microscope that images molecular dynamics at a temporal resolution of 380 fs or faster. The all-optical, steady-state technique is...
Spectroscopy Probes Nanostructures
Dec 1, 2000 — A team from North Carolina State University in Raleigh and St. Lawrence University in Canton, N.Y., has developed a spectroscopy technique that may enable researchers to better understand matter at the molecular level. Such an understanding could...
Caged Atoms Offer Big Possibilities
OAK RIDGE, Tenn. -- OAK RIDGE, Tenn. -- A technique that traps single atoms for study at room temperature may find applications in dense optical storage media, single-atom lasers and novel detectors. By doping nanocrystals with rare-earth ions, researchers are...
Instrument Characterizes Colloids
ALBUQUERQUE, N.M. -- ALBUQUERQUE, N.M. -- Researchers at Los Alamos National Laboratory have developed a system that characterizes the properties and behavior of colloids. Originally developed to analyze particulate pollution in the environment, especially radioactive...
Putting Imaging Under the Microscope
Oct 1, 2000 — At the Cornell University Integrated Microscopy Center in Ithaca, N.Y., the imaging system is based on an Axioplan 2 microscope from Carl Zeiss and a SensiCam camera from the Cooke Corp. of Auburn Hills, Mich. A look at the center’s recent...
Waveguide Reveals Singularities
ENSCHEDE, Netherlands -- ENSCHEDE, Netherlands -- The optical equivalent of scanning tunneling electron microscopy promises to aid the design and analysis of photonic devices in telecommunications and integrated optics. Called a heterodyne interferometric photon scanning...
Waveguide Reveals Singularities
Oct 1, 2000 — ENSCHEDE, Netherlands -- The optical equivalent of scanning tunneling electron microscopy promises to aid the design and analysis of photonic devices in telecommunications and integrated optics. Called a heterodyne interferometric photon scanning...
Scattered Light Finds Defects in Wires
MADRID, Spain -- MADRID, Spain -- Physicists in Spain and Argentina have developed a laser-based system designed to let makers of thin metallic wires detect and assess surface defects without shutting down the assembly line. The technique monitors the cone of light...
Appearances Can Be Deceiving
Aug 1, 2000 — Most commercial lens assemblies such as lenses for cameras and microscope objectives are reasonably priced (on the order of several hundred dollars) and are available immediately. A custom-designed lens assembly looks the same externally, but its...
Defining Performance
Aug 1, 2000 — In laser applications such as materials processing, environmental monitoring and confocal microscopy, understanding the laser’s performance is critical. A laser that operates erratically as it drills holes in steel could fail to penetrate the...
Laser Spot Aims at Storage Market
MURRAY HILL, N.J. -- MURRAY HILL, N.J. -- A relatively simple solution to the problem of reducing a laser’s spot size using near-field optics may lead to an optical storage system that could store as much as 500 Gb/in.2 of data, up to 100 times current storage...
Photon Tunneling Microscope Reveals Singularities
Aug 1, 2000 — A team at the University of Twente in Enschede, the Netherlands, has developed a technique that may aid the design and analysis of photonic structures. Reporting in the July 10 issue of Physical Review Letters, the researchers describe how they used...
Veeco Links Quarterly Gains to Optical Telecommunications Activity
Jul 28, 2000 — PLAINVIEW, N.Y., July 28 -- Veeco Instruments Inc., manufacturer of metrology tools and other equipment used in the fabrication of microelectronic components, reported record second quarter sales for 2000. Sales for the second three months of fiscal...
Veeco Gets $10 Million in Orders for Semiconductor Metrology Tools
Jul 13, 2000 — PLAINVIEW, N.Y., July 13 -- Veeco Instruments Inc. has reported more than $10 million in orders for its automated atomic force microscope and profiler semiconductor metrology tools in this year's second quarter. During the second quarter of...
Arrays Advance DNA Detection
MEDFORD, Mass. -- MEDFORD, Mass. -- Researchers from Tufts University have devised a screening method using a bead-based fiber optic array that could dramatically increase the speed and sensitivity of DNA sampling. A new type of DNA microarray incorporates latex...
Bring Images to Life
Jul 1, 2000 — Making photographs at the microscope can be difficult. For example, magnification produces problems associated with the depth of field, and diffraction creates problems with image resolution. One of the most difficult aspects of photographing...
Portable Spectrometer Reduces Mill Downtime
Jul 1, 2000 — When a paper mill suspects contamination in the production line, the manufacturer faces costly downtime. Technical support specialists must be called in to test for the buildup of various deposits and to design a solution with the proper chemical...
Solid-State Blue Laser Unveiled
SANTA CLARA, Calif. -- SANTA CLARA, Calif. -- Researchers at Coherent Inc., Laser Group, have developed the prototype of a diode-pumped solid-state laser that emits light at 488 nm, addressing what has been a major concern of biologists. When scientists want to study an...
Technique Unveils Gene Process
BERKELEY, Calif. -- BERKELEY, Calif. -- Gene transcription is the first step in the process whereby information stored in DNA patterns is used to manufacture protein. When an RNA polymerase enzyme latches onto a DNA strand and begins to slowly reel it in, the...
ChromaVision Introduces Automated Test for Cancer
Jun 26, 2000 — SAN JUAN CAPISTRANO, Calif., June 26 -- ChromaVision Medical Systems Inc. has unveiled a new immunohistochemical (IHC) test to aid in the detection of micrometastases in patients' tissue that have spread from the primary tumor. The new test will be...
Applied Imaging Obtains Rights to SmartCapture
Jun 16, 2000 — SANTA CLARA, Calif., June 16 -- Applied Imaging Corp. has entered a multiple-year distribution and product development agreement with Digital Scientific Ltd. Applied Imaging will be the sole distributor of Digital Scientific's SmartCapture line of...
StockerYale Acquires Ireland's CorkOpt
Jun 7, 2000 — SALEM, N.H., June 7 -- In return for $2.45 million, StockerYale Inc. acquired CorkOpt Ltd. of Cork, Ireland. StockerYale issued the privately held company 62,691 shares of common stock at $35 per share and paid the balance of the...
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July 2024
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