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BioPhotonics - May 2009


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These optical fibers could save lives A start-up company is developing fibers that could provide real-time information as cardiologists open clogged arteries. Another start-up is using fibers to enable gastroenterologists to search the esophagus and colon for tissue that could become cancerous. And a headset that uses optical fibers to channel light to the brain could enable physicians to examine patients who have experienced brain...
The Long and Short of Biomedical Imaging What you can’t see can hurt you. Cancer and other diseases can remain undetected until it’s too late. On the other hand, sometimes what you can’t see can help you: Increasingly, photons in nonvisible...
Making cells stick to a nonstick surface Teflon’s nonstick properties make it ideal for more than pots and pans. The material, also known as poly-tetrafluoroethylene, is a good choice for use in direct contact with blood because its high...
Optical Tweezers: Empowering Biology with the Force of Light Over the past few years, optical tweezers increasingly have been used to answer questions of biological significance. Doing a search with key words such as “optical tweezers” and “optical trap” on...
The Stimulus Package and You On Tuesday, Feb. 17, President Obama signed into law the American Recovery and Reinvestment Act (ARRA), the much-debated stimulus package designed to breathe life into the US economy. The act...
Editorial
Swine Flu: Pandemic or Hyperbole? By the time you read this, the tale of the swine flu virus likely will have played out, and we will know for sure whether it was a threat comparable to the strain that killed tens of millions of people during the period 1918 to 1919. There is no doubt about the seriousness of this virus, but the new strain perhaps was unfairly proclaimed a potential pandemic right from the outset by a press...
BreakthroughMedia
Nanoparticles brochure Alfa Aesar, a Johnson Matthey Co., has updated the eight-page brochure Nanoparticles and Dispersions from Nanophase Technologies Inc. Featured are new products, including aluminum oxide, antimony tin...
Nanopositioning Available from PI (Physik Instrumente) LP, the 530-page hardcover catalog Piezo Nano Positioning Inspirations 2009 is a comprehensive resource on the fundamentals of nanopositioning, piezo systems...
Linear motion HaydonKerk Motion Solutions has introduced a Web site that reflects the joining of the Haydon and Kerk brands in the field of linear motion. Visitors to the portal can find technical information and...
Laser safety Available from the Laser Institute of America, the standard ANSI Z136.5-2009 Safe Use of Lasers in Educational Institutions addresses laser safety concerns and situations characteristic of the...
Protein analysis A brochure from Wyatt Technology Corp. details the company’s new DynaPro NanoStar dynamic light scattering instrument for protein analysis. Available in print or pdf, the eight-page document...
Cell health BioProbes 58, the April 2009 issue of a newsletter published by Invitrogen Corp., features articles on detecting DNA fragmentation using the Click-iT Tunel assays, fluorescence technologies for...
Postscripts
All together now! For many years, silver chloride was the gold standard of photographic printing. The chemical’s high photosensitivity made basic imaging possible because it darkens when exposed to light. Now, the material that moved the world from sepia tones to classic black and white may presage the next evolutionary stage for science and technology. Sound like hyperbole? The goal of many researchers over...
Products
860-nm SLEDs Exalos AG has expanded its family of broadband superluminescent light-emitting diodes (SLEDs) to include the 860-nm semiconductor light source. Delivered in a 14-pin package with a built-in...
Exalos AG
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UV crosslinker The Spectrolinker XL-1000 UV crosslinker from Spectronics Corp. covalently binds nucleic acids to membranes in less than 30 s. Offering four operation modes, built-in “help” messages and an...
Spectronics Corp., Spectroline
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NCCD camera Andor Technology plc has launched the Clara interline CCD camera for low-light applications. Based on the 1.3-megapixel ICX285 sensor from Sony, the high-resolution scientific camera operates at a...
Oxford Instruments
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Raman spectrometer The innoRam portable Raman spectrometer system from B&W Tek Inc. features an integrated touch-screen computer with research-grade performance. The high-throughput system combines double-pass...
B&W Tek LLC
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Yellow laser Oxxius SA has introduced the SLIM-561 yellow diode-pumped solid-state laser emitting 150-mW output power at 561 nm. It features optical noise of <0.2% rms, pointing stability of <5 μrad...
Oxxius SA
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Light scattering Wyatt Technology Corp. has released its latest dynamic light scattering instrument, the DynaPro NanoStar. Its multimode fiber design features a dedicated static light scattering detector that...
Wyatt Technology Corp.
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UV lasers The all-solid-state Genesis 355 lasers offered by Coherent Inc. provide true continuous-wave output in the ultraviolet region. Based on proprietary optically pumped semiconductor laser technology,...
Coherent Inc.
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Pulse generator Berkeley Nucleonics Corp. has announced that its Model 6040 light-pulse generator with optical plug-ins from 650 to 1580 nm now includes optional polarization-maintaining fiber outputs. It provides...
Berkeley Nucleonics Corp.
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Profilometer NanoFocus AG’s μscan explorer profilometer integrates noncontact optical distance sensors, data acquisition and control systems, and surface analysis software based upon Digital Surf’s...
NanoFocus AG
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EMCCD cameras Manufactured by Princeton Instruments, the ProEM professional-grade electron-multiplying (EM) CCD cameras are suitable for use in low-light applications in single-molecule fluorescence, astronomy and...
Teledyne Princeton Instruments
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Gamma correction Imperx Inc. has enhanced its professional vision system video capture capability for ExpressCard/54 laptop computers. Its HD-SDI Express video capture card now is equipped with gamma correction to...
Imperx Inc.
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Flow cytometry system Developed for the research and biopharmaceutical markets, the Gallios flow cytometry system from Beckman Coulter Inc. is a multicolor, multilaser instrument designed to enhance the efficiency and...
Beckman Coulter Inc., Diagnostics Div.
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Spectrophotometers The NanoDrop 2000 and 2000c spectrophotometers unveiled by Thermo Fisher Scientific Inc. are UV-visible and perform 5-s measurement of DNA, RNA and proteins on a sample size down to 0.5 μL. The...
Thermo Fisher Scientific
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Biomedical laser BaySpec Inc. has released a 785-nm fiber laser for biomedical applications. The MiniLite delivers up to 500 mW of maximum power and offers a side mode suppression ratio of 40 dB. Designed to enhance...
BaySpec Inc.
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Microscope system The Laser TIRF (total internal reflection fluorescence) 3 microscope system introduced by Carl Zeiss Ltd. enables scientists to visualize near-cell membrane dynamic processes while maintaining...
Carl Zeiss Ltd.
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Tunable laser The Spectra-Physics Lasers Div. of Newport Corp. has announced the Iris optical parametric oscillator, a tunable, ultrafast laser source for use in imaging and spectroscopy applications. Optimized...
MKS/Newport
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Dye kits Li-Cor Biosciences, in partnership with Molecular Targeting Technologies Inc., has introduced two fluorescence imaging kits for cell membrane labeling. The CellVue Burgundy and NIR815 use proprietary...
LI-COR Biosciences, Biotechnology
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Water-immersion objective Designed for multiphoton imaging, the XLPlan N 25× water-immersion objective unveiled by Olympus Life Science Europa GmbH has a numerical aperture of 1.05 and can be used for tissue samples with...
Olympus Europa SE & Co. KG
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AFM For cellular force and mechanical studies, high-resolution molecular-scale imaging and other life sciences applications, Veeco Instruments Inc. has released the BioScope Catalyst life sciences atomic...
Veeco Instruments Inc.
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VCSEL array Princeton Optronics Inc. has introduced 40-W continuous-wave backreflection-immune semiconductor lasers based on vertical-cavity surface-emitting laser (VCSEL) technology. The PCW-CA1-40-W0808...
Princeton Optronics Inc.
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