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Microscopy News
Polymers Extend Range of Blue Phase
Nov 1, 2002 — Blue-phase liquid crystals display much promise in photonics -- for example, in switching applications -- but their temperature sensitivity has made their deployment problematic. Now a team at Kyushu University, Precursory Research for Embryonic Science and Technology and Fukuoka Industry, Science and Technology Foundation, all in Japan, has demonstrated that the addition of a polymer to the liquid crystal can extend the temperature range of the blue phase from 1.1 K to more than 60 K....
Ultrafast Laser Chisels Lens Inside Glass
Nov 1, 2002 — In the classic magic trick, a magician asks a member of the audience to select a random card from a deck, and then seems to miraculously transport that card into a solid piece of ice or glass. Japanese researchers have performed their own version of...
UV/Blue Lasing Observed in Nanowires
Nov 1, 2002 — Building on earlier research that used near-field microscopy to capture lasing action of single ZnO nanowire arrays, scientists at the University of California, Berkeley, now have observed and characterized UV and blue laser action in single gallium...
Imago Scientific Instruments Receives LEAP Microscope Funds
Oct 30, 2002 — MADISON, Wis., Sept. 30 -- Imago Scientific Instruments, a Madison-based manufacturer of analytical equipment, announced it has secured $7 million in financing for the development of its innovative LEAP microscope. Investors include Draper Fisher...
Flourescence Microscope Helps Solve DNA Mystery
Oct 22, 2002 — CHAMPAIGN, Ill., Oct. 22 -- Using an optical fluorescence microscope to monitor enzyme activity, researchers at three universities have solved a long-running mystery: It takes at least two proteins, working in an unstable tandem, to unzip two...
Microscopy, Imaging Markets Buying More Online
Oct 7, 2002 — SPRINGFIELD, Mass., Oct. 7 -- Microscopy and imaging firms are making more online purchases and are showing increasing interest in combined infrared spectroscopy-microscopy equipment, according to a study conducted by Microscopy/Marketing &...
'Smart Dust' Detects Biological and Chemical Agents
Oct 1, 2002 — Researchers at the University of California, San Diego, in La Jolla have demonstrated the use of optically encoded silicon crystals for bioassays. Such "smart dust" may have applications in drug discovery, medical diagnosis and screening for...
Blue Laser Diode Improves Fluorescence Imaging
Oct 1, 2002 — Researchers at London's Imperial College of Science, Technology and Medicine have developed a wide-field fluorescence lifetime imaging system that can simultaneously sample up to 36 wells on a multiwell plate. The technique, which employs a blue...
Crystal Growth Studied in Space
Oct 1, 2002 — Insulin is perhaps one of the most studied proteins in medical science. Understanding how its structure folds and unfolds could lead to new forms of insulin that would have greater therapeutic value for the millions of people afflicted with Type I...
Imaging Closes on Single-Molecule Resolution
Oct 1, 2002 — Scientists have attributed the difficulty in achieving single-molecule sensitivity in a tip-enhanced scanning near-field optical microscopy setup to the metal tip's tendency to quench nearby molecular fluorescence. To observe this directly,...
Lithography Creates AlGaAs Microdiscs
Oct 1, 2002 — Researchers from the University of Hamburg in Germany have fabricated large periodic arrays of AlGaAs semiconductor microdiscs using laser-interference lithography, reactive-ion etching and selective wet-chemical etching of GaAs with a...
Nanotubes May Make Good Switches
Oct 1, 2002 — Ultrafast all-optical switches likely will be integral to future time-division-multiplexing communications and free-space optical computing systems. The nonlinear optical properties of carbon nanotubes suggest that these structures may be useful for...
Real-Time Holography Targets Biological Imaging
Oct 1, 2002 — Scientists at Imperial College of Science, Technology and Medicine in London have demonstrated a holographic imaging system for wide-field optical sectioning that promises a depth resolution comparable to confocal microscopy and frame rates of up to...
Secondary Measures: Used Equipment Sells
Oct 1, 2002 — Faced with a lack of capital, many companies that might never have considered purchasing equipment from the secondary market are now finding themselves lured by used-equipment dealers awash in surplus acquired from facility closings and...
Strengthening Hot Dog Wrappers
Oct 1, 2002 — Stuff assorted meat products, salt, potassium lactate, flavoring, hydrologized beef stock, sodium phosphate and sodium nitrite into a casing of ambiguous origin, and you have a preservative-laden hot dog that could probably last for years....
Tweezers Catch and Analyze Particles
Oct 1, 2002 — Researchers at East Carolina University in Greenville, N.C., have developed a combined laser tweezers and Raman spectroscopy technique that enables them to capture and measure both transparent and nontransparent particles. The system could prove...
RPI to Open Terahertz Science Lab
Sep 9, 2002 — TROY, N.Y., Sept. 9 -- A center for terahertz research will be established at Rensselaer Polytechnic Institute, thanks to a $1 million grant from the W.M. Keck Foundation of Los Angeles. RPI will use the funding to set up the W.M. Keck Laboratory...
Nanotechnology Center Launched in Beijing
Sep 3, 2002 — WOODBURY, N.Y., Sept. 3 -- Veeco Instruments Inc. has established a China Nanotechnology Center facility (CNC) in Beijing, China, to be jointly operated with the Institute of Chemistry of the Chinese Academy of Sciences (CAS). The facility will be...
Nanotechnology Center Opens in Beijing
Sep 3, 2002 — WOODBURY, N.Y., Sept. 3 -- Veeco Instruments Inc. has established a China Nanotechnology Center facility (CNC) in Beijing, China, to be jointly operated with the Institute of Chemistry of the Chinese Academy of Sciences (CAS). The facility will be...
Self-Assembly Eases Fabrication of Photonic Crystals
Sep 1, 2002 — Devices constructed of photonic crystals promise to enable the precise, localized control of optical propagation. The fabrication of such crystals usually involves a complex and expensive multistep process. However, researchers at the University of...
Single Molecules Display Electroluminescence
Sep 1, 2002 — Scientists at Georgia Institute of Technology in Atlanta have coaxed photons from individual molecules. The nanometer-scale light sources, which were reported in the Aug. 6 issue of the Proceedings of the National Academy of Sciences, may find a...
Spectroscopy Works with Single Pulse
Sep 1, 2002 — Physicists at Weizmann Institute of Science in Rehovot, Israel, have demonstrated that a single tailored laser pulse can replace the two or three typically required in coherent anti-Stokes Raman spectroscopy and microscopy. Described in the Aug. 1...
Tabletop Source Offers Extreme Ultraviolet
Sep 1, 2002 — Generating laserlike beams of x-rays from a simple tabletop setup, a team based at the University of Colorado's JILA in Boulder has demonstrated the ability to perform extreme-ultraviolet holography. "Lasers in the visible region of the spectrum...
Team Gets Grant for Microrobotic Vision System
Sep 1, 2002 — Electronics Research Group scientists at Sheffield Hallam University's School of Engineering in Sheffield, UK, have received a grant of £180,000 over three years through the European Union's Esprit program to further develop a vision system for...
New Clues from Infrared Forensics
Aug 28, 2002 — BERKELEY, Calif., August 28 -- With infrared light, forensic investigators can tell you whether a document is a forgery or whether paper currency is counterfeit. They can take a paint chip and tell you the make, model, and age of a car. Now the...
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July 2024
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