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Microscopy News
Visualizing a Laser’s Polarization
Apr 1, 2008 — One of the oldest tricks in the book is checking a laser beam’s polarization with a microscope slide: You stick the slide, oriented at Brewster’s angle, into the beam and then rotate it around the beam axis until the reflection disappears. The direction of the disappearing reflection is the direction of the beam’s polarization. A drawback of this timeworn technique is the safety hazard of having stray beams wandering around on the laboratory walls and ceiling. Figure 1. The pattern of...
Explosives Emboss Holograms
PFINZTAL, Germany, March 31, 2008 -- Hear the word "explosives" and images might spring to mind of an old building being demolished, or an avalanche being triggered. But now a more precise, delicate task has been found for explosive materials-- embossing holograms in steel....
Tiny Biosensor to Detect DNA
TEMPE, Ariz., March 26, 2008 -- A biosensing nanodevice powered by a tiny enzyme motor may one day eliminate long airport security lines and revolutionize health screenings for diseases such as anthrax and cancer and antibiotic-resistant Staph infections. Arizona State...
FEI Titan Awarded at Nano Tech 2008
Mar 25, 2008 — FEI Co. of Hillsboro, Ore., announced that its Titan 80-300 S/TEM (scanning/transmission electron microscope) received the award for technical excellence in evaluation and measurement at Nano Tech 2008, a nanotechnology conference held last month in...
Nanotech Drives TE Boost
CHESTNUT HILL & CAMBRIDGE, Mass., March 21, 2008 -- Nanotechnology has been used to crush and then reconstitute a classic semiconductor used in industry and research, dramatically improving its ability to conduct electricity but not heat. The work could pave the way for a new generation of...
'Small' Science Awarded
SYDNEY, Australia, March 20, 2008 -- Frank Ruess, PhD, a researcher at the University of New South Wales (UNSW) in Sydney, Australia, has been pioneering a way to make atomic-scale electronic devices using the atomic resolution capability of the scanning tunneling microscope. This...
Photons on Demand
MELBOURNE, Australia, March 18, 2008 -- A device uses the unique properties of diamonds to produce single photons on demand at room temperature. Quantum Communications Victoria (QCV), part of the University of Melbourne's physics department, has developed the single-photon source, which...
UTSA Receives $822K to Purchase Electron Microscopes
Mar 13, 2008 — The University of Texas at San Antonio (UTSA) announced it has received $822,000 from the Robert J. Kleberg Jr. and Helen C. Kleberg Foundation to purchase three high-powered electron microscopes. The scanning, tunneling, and atomic force...
StockerYale: A Bright Future
SALEM, N.H., March 7, 2008 -- With StockerYale’s leading role in doped fiber production for fiber lasers, increasingly important role in providing specialized illumination for machine vision, and ever-increasing sales in medical instrumentation markets, the future looks...
Virus Imaged in Great Detail
WEST LAFAYETTE, Ind., March 6, 2008 -- Single-particle electron cryomicroscopy, also known as cryo-EM, has been used to capture a 3-D image of a virus with near atomic-level resolution, the highest level of detail achieved for a living organism of that size. A team led by Wen Jiang,...
Agilent to Buy Till Photonics
NEW ORLEANS, March 4, 2008 -- Agilent Technologies Inc. of Palo Alto, Calif., announced this week it has signed an agreement to acquire Till Photonics GmbH and has acquired Colloidal Dynamics of Warwick, R.I. Both companies will join the recently created Materials Science...
Agilent to Buy Till Photonics
NEW ORLEANS, March 4, 2008 -- Agilent Technologies Inc. of Palo Alto, Calif., announced this week it has signed an agreement to acquire Till Photonics GmbH and has acquired Colloidal Dynamics of Warwick, R.I. Both companies will join the recently created Materials Science...
Biomagnetics Eyed for Tests
LONDON, March 4, 2008 -- A device that combines magnetic nanoparticles with an extremely sensitive magnetic microscope could make early detection of breast cancer more cost effective and easier to administer. The device was developed by a team from University College...
A Small Temperature Probe with a Bright Future
Mar 1, 2008 — To measure temperature on the nanoscale, you need a minuscule thermometer. Now a group of researchers has demonstrated that a fluorescent particle glued to the end of a sharp tip of an atomic force microscope might do the trick. By monitoring...
Detecting Biofouling in Food Processing Systems
Mar 1, 2008 — Biofilms typically are bacterial and/or fungal organisms that colonize in slime films on the inside surfaces of pipes, vessels and equipment that handle and process liquids. They result from biological fouling, or biofouling for short, and can be...
Fighting Counterfeiting with the Basics
Mar 1, 2008 — The best way to spot a fake is to check its true colors. Identifying counterfeit commercial goods may be easier in the future, thanks to Effendi Widjaja and Marc V. Garland of the Singapore-based Institute of Chemical and Engineering Sciences, who...
Food and Water Safety
Mar 1, 2008 — Molecular sensors can detect trace amounts of molecules present in food and water that signal the presence of danger to humans. The target may be the toxic molecule itself, as in the case of pesticide residues and pollutants, or it may be a...
Getting Semiconductors Ready to Take a Spin
Mar 1, 2008 — For semiconductors, the hope is that everything will not be just about electron charge in the future. Instead, having devices also exploit electron spin — resulting in new kinds of memory and logic chips — is a goal of spintronics, the spin-based...
Lensless Soft X-Ray Microscopy System Achieves 70-nm Resolution
Mar 1, 2008 — Although x-ray crystallography can reveal the structure of molecules, numerous molecules cannot be crystallized and are not found naturally in crystallized form. A relatively new technique called x-ray diffraction microscopy is compatible with...
Nanobeads Prove Useful for Making Optical Molecular Sensors
Mar 1, 2008 — Optical chemical sensors are employed for testing in numerous fields, from marine research to the aerospace and automotive industries to medicine and biotechnology. Such sensors often consist of indicator fluorophores in a polymeric...
OPTICS RESOURCE
Mar 1, 2008 — Edmund Optics has released its “Optics and Optical Instruments Catalog, Spring 2008,” which features the new TechSpech BeamX laser beam expanders and UV fused silica aspheres. The 404-page publication includes expanded sections on optics, fiber...
Photocurrent Altered with Nanoparticles
Mar 1, 2008 — Sprinkling nanoparticles over the active face of photodetectors and solar cells could be a relatively easy and inexpensive way to enhance the performance of these devices. But exactly what effect do these tiny particles have, and what size,...
Program that Images Stars Also Works in Nanoworld
Mar 1, 2008 — If it works in the macroworld, why not in the nanoworld? Researchers at Georgia Institute of Technology, at Emory University and at Georgia State University, all in Atlanta, were looking for a way to differentiate one nanosize probe from another...
Saving Money with Laser Processing
Mar 1, 2008 — Flat panel displays are one of the great modern engineering success stories. They are everywhere — in mobile phones, public displays and even sports arenas. In fact, even now there is a fair chance that you use them every day at home, at work or...
Slicing and Dicing Food and Agricultural Data
Mar 1, 2008 — Farming has gone high-tech, with optical monitoring taking place from the air and from satellites, on planting and harvesting equipment, and on ground-based sensors. The food and beverage industry uses optical sensing to ensure that raw materials,...
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April 2024
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