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Laser Inserts DNA into Cells with a Light Touch
Common techniques to force DNA into cells can be clumsy or even violent, but a team in South Korea developed the most precise method to date by combining two high-tech laboratory techniques. The method allows holes to be poked precisely on the surface of a single cell with a high-powered femtosecond laser, then a piece of DNA is gently tugged through the hole using optical tweezers. "What is magical is that all this happens for one cell," said team member Yong-Gu Lee, an associate professor at the Gwangju Institute of Science and Technology. "Until today, gene transfection has been performed on a large quantity of agglomerate cells and the outcome has been observed as a statistical average and no observations have been made on individual cells."
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Light Stopped for a Minute
At a speed of 186,000 miles per second, nothing travels faster than light. So getting it to slow down is a formidable challenge, let alone getting it to stop. But physicists in Germany report they used a glass-like crystal to stop light for about one minute, which could have important implications for light-based data processing.
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IR Tomography Goes Full Color
Combining Fourier transform infrared (FTIR) spectroscopy with computed tomography creates a non-destructive, 3-D imaging technique providing full-color, molecular-level chemical information of unprecedented detail on biological and other samples with no need to stain or alter the specimens, says a team from Lawrence Berkeley National Laboratory and the University of Wisconsin-Milwaukee.
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CCTV Lenses
Universe Kogaku (America) Inc.
Universe Kogaku America adds to its existing line of High Resolution lenses with a series of cctv lenses with locking focus, available in focal lengths from 8mm to 50 mm.
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Laser Safety Curtain Systems
Kentek Corporation
KENTEK offers the most complete and versatile enclosure systems for applications requiring an eye-safe operating environment for industrial, medical, and research laser systems.
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Custom Advanced Optical Components
Optometrics Corp.
Optometrics has a distinguished 40 year history of manufacturing, and providing custom advanced optical components to OEM instrument manufacturers for a wide range of spectroscopic, laser and wavelength selection applications.
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3-D Images Created From a Single Lens
A computational method developed at Harvard called light-field moment imaging creates 3-D images using a single, stationary lens, a discovery that could have implications for medical imaging and even future 3-D displays.
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New Center to Advance Freeform Optics
More than $4 million in federal, industry and academic funding aims to advance freeform optics through a new center led by the universities of Rochester and North Carolina at Charlotte.
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Light Moves, Molds Gels
Researchers at the University of Pittsburgh used light to reconfigure hydrogels and induce self-sustained motion. This biomimetic behavior in a non-living organism could have significance for a host of medical applications, including microfluidics and optics.
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On this edition of the industry's only weekly newscast: a 3-D image is created through a single lens, hydrogels are controlled and moved with light, a new center aims to advance freeform optics, and the Mars rover Curiosity marks one year on the Red Planet. Hosted by Photonics Media's Melinda Rose and Laura Marshall.
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Machine Vision System Measures Swimmer Biomechanics
Athletes competing in the 15th FINA World Swimming Championships in Barcelona were monitored by an advanced image-processing system designed to capture biomechanical data, such as pass times and velocities, turns, stroke frequency and amplitude.
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Sydor Optics Receives ISO Certification
The precision optics manufacturer received ISO 9001:2008 certification quality management standards, affording its US and international customers a globally recognized standard of quality assurance.
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IRSC to Establish Lasers and Fiber Optics Center
Under a $2.9 million grant from the National Science Foundation, Indian River State College (IRSC) in Florida will establish a regional center to meet a growing need for trained laser and fiber optics technicians.
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The unveiling of breakthroughs in photonics will top the agenda when the world's leading technologists in the field convene in the Seattle area in September for the annual IEEE Photonics Conference (IPC-2013), formerly called the IEEE LEOS Annual Meeting.
Some 600 scientists, engineers and technical managers will gather from September 8-12 at the Hyatt Regency Bellevue Hotel for an IPC-2013 program of invited talks, paper presentations, panel sessions, special symposia, networking opportunities, and a product showcase.
MORE INFO >>
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FEATURED VIDEO
Aerotech - Ensemble LAB Motion Controller
Aerotech's Byron Fruit presents the Ensemble LAB stand-alone motion controller for up to four axes of brush, stepper or brushless AC motor control, MPS series miniature linear and rotary and lift positioning stages, and ANT series nanopositioners at CLEO 2013. www.aerotech.com [email protected] 101 Zeta Drive Pittsburgh, PA 15238 (412) 963-7470
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