Tag: "optical" at medical news
Contrast agents enhance optical coherence tomography
... of Illinois. Similar in operation to ultrasound, optical
coherence tomography (OCT) is an optical
technique that allows high-resolution imaging of tissue. The technique works by focusing a beam of ...
Detecting breast cancer spread by white light - groundbreaking technology
... tiny pulses of harmless white light though a thin optical
fibre onto the tissue surface at the site where ca...on a portable computer. The analysis compares the optical
signature to those from previous examples of normal and cancerous tissue, and if the results are sim...
Molecular self-assembly techniques used to coat biomedical substrates
...boratory has been able to create via ESA nonlinear optical
thin films incorporating polymer dyes, ceramic nanoparticle thin films, conductive thin film incorporating Au colloids, Fullerene films, and light emitting diodes," reports You-Xiong Wang, senior research scientist with the Fiber and Electro-Optics ...
Physics tip sheet #11 - May 1, 2002
...example system, an atom was stored in intersecting optical
cavities and bombarded with noisy light. Entangled light then built up in the cavities. Journal article: http://link.aps.org/abstract/PRL/v88/e197901 5) Fractional atoms J. Ruostekoski, G. Dunne, and J. Javanainen Physical Review Focus/Physical Rev...
Lasers light way to 3-D imaging in Purdue lab
...earch team recently used the new technique, called optical
coherence imaging, to take a video of the insides ...ce, Technology and Medicine in London. Critical to optical
coherence imaging is a semiconductor holographic film developed by the team. Many other imaging tech...
Brain-imaging cap under study for space and Earth use
...strokes and seizures." The device utilizes diffuse optical
tomography (DOT), a technique using near-infrared light and detectors to record brain activity. The light shines through the skull into the brain and records regional differences in blood flow and oxygen levels. These differences are then analyzed to...
Light adjustable intraocular lenses may offer customized vision for cataract patients
...dictable power changes after irradiation, and high optical
quality, according to Mamalis and Calhoun Vision, Inc. scientists. The researchers note that this technology may have application beyond correcting vision problems in post cataract surgery patients. The lens could potentially be used as an alterna...
Writing nanopatterns with DNA inks
...licon oxide, which is important for electronic and optical
materials applications, will be published in the June 7 issue of the journal Science. "With this new tool, we can take a normal chip thats made and sold today for studying a problem in genomics and miniaturize it to 1/100,000th of its size," said Cha...
Northeastern's CenSSIS announces research agreement with ART Advanced Research Technologies
...ies Inc. (ART) (TSE "ARA"), a leading developer of optical
and infrared imaging technologies for the detectio...Systems, The MathWorks and Lockheed Martin. "ART's optical
imaging technology will be the cornerstone in the validation of the sophisticated physics-based info...
Adaptive optics technology provides powerful tools for eye doctors
...n the form of diagnostic instruments for measuring optical
aberrations of the eye. A wavefront sensor is an essential component of any AO system, measuring optical
distortions that are then corrected by other components of the system. Stand-alone devices that inco...
DARPA to support development of human brain-machine interfaces
... detecting and analyzing brain signals, as well as optical
communications links between the chip and the control components of the interface. John Chapin's laboratory will develop the sensory feedback mechanism by which animals and humans can "feel" the actions of a neurorobotic arm or hand. Jose Principe ...
Researchers develop 'fingerprinting' for biological agents
...technique called Raman spectroscopy, improves upon optical
detection methods reported previously by Northwestern in Science. Mirkin's group has been pioneering the use of nanoparticles as a potential replacement for the more expensive polymerase chain reaction (PCR) and conventional fluorescence probes, the...
Berkeley chemist wins national award for research on contact lenses, other products
...ears and the eye itself," he said. "We use various optical
devices to measure what happens between tears and lens, to see how molecules of material are adsorbed on the surface, how much and their characteristics," he explained. "And using modern computation we solve how forces get transmitted to the lens by ...
Improved molecular beacons show promise for cancer detection, rapid viral diagnosis
...cons" into the body and then watching for specific optical
or magnetic signals as the nanometer-scale structu...cons suitable for use in body tissues too deep for optical
imaging to work. "We want to cover the whole spectrum," Bao explained. "The idea is to use the op...
Chemist works to prevent undesirable side effects in synthetic drugs
...t research. Crawford is looking at the property of optical
rotation as a way to identify the handedness of molecules. Different "hands" have different optical
rotations. If polarized light is shone through a sample, the plane of the light will be rotated one ...
Capturing airborne pathogens, breath tests for lung cancer
...eagues at East Carolina University will present an optical
sensor that can rapidly capture and identify indiv...d the LTRS sensor, it works by combining a pair of optical
technologies. One of these technologies, called laser tweezers, captures microscopic particles in a ...
Life-saving imaging techniques developed at Oxford University
...ves from frame to frame (this movement is known as optical
flow or image velocity). Measurement of optical
flow can improve the image encoding efficiency, or allow enhancement of the display of the movement ...
Halas wins innovator award in fight against breast cancer
...hells, a novel type of nanoparticle with "tunable" optical
properties. The Innovator Award is administered by...team can precisely tune a nanoshell's electric and optical
properties. Halas and West have successfully attached proteins to the surface of nanoshells -- inclu...
Physics and medicine in San Diego
... reduction in exposure values, an increase in film optical
densities, and an improvement in film processing. (Paper Tu-C25A-1, Tuesday, 10 AM) COVERING THE MEETING The AAPM meeting webpage ( http://www.aapm.org/meetings/03AM/ ) contains links to the full program and hotel information for the meeting. With ...
People with large pupils can now get LASIK and avoid night vision disturbances
...that is, the difference between pupil size and the optical
zone treated by the laser. With this study, we now know use of large optical
zones is safe and effective in preventing nighttime glare and haloes in patients with large pupils."...
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