optical

New scalpel probes into cancer

... output frequency by a receiver and transmitted by optical fibre to a laptop computer. An algorithm transla...be transmitted from the scalpel to the computer by optical fibre.This new recovery might prove a boon for the surgeons....

Laser to help in root canal treatment

...t a direct laser, the but alternatively furnishes optical energy to water, and the water particles themselves provide the cutting of dental hard tissue. Use of the Waterlase may reduce the need for anesthesia and fewer instruments can be used for treatment, according to Biolase. Postoperatively, it may red...

Airbags lessens oppressive eye injuries

..., while Level 4 described serious injuries such as optical nerve damage and retinal detachment. The researchers found that 3.5 per cent of those involved in an accident where an airbag was deployed had an eye injury, compared to two per cent where an airbag was not involved. In fact, 25 per cent of all eye...

Testing for blood sugar levels made easier

...xas have discovered a new non-invasive test, using optical coherence tomography, which will end the pain of pricking for diabetes patients. Optical Coherence Tomography uses advanced photonics and fiber optics to obtain images of tissues. It uses infrared light waves that reflect off the internal structures...

Gene-Nanoparticle Gene Transfer Is Better Than Viral Vector Transfer System

...ble to a viral vector," Bharali said. Using a new optical fiber in vivo imaging technique (CellviZio developed by Mauna Kea Technologies of Paris), the UB researchers were able to observe the brain cells expressing genes without having to sacrifice the animal. Using this technique it is also possible to man...

Diabetes and heart attack diagnosis now made simple with twin magic

...tein markers released during a heart attack, using optical measurements. What makes it extra special is that the needles play a dual role and complement each other. The tiny medical gadgets are expected to be constructed of cheap throw-away plastic which would not only make glucose testing simple and painl...

A Mirror Miracle!

... The team heads Roger and Leigh say," getting the optical properties of mirror rights is crucial, light only passes easily through the skin over a tight range of infrared wavelengths but slicon surfaces dont reflect well at these wavelengths. And if the mirror was highly polished it would quickly loose its ...

OCT - Optical Coherence Tomography - the buzzword in cardiology

...t professor at Harvard Medical School who has used optical coherence tomography to gauge stent status.// This is a new imaging technique similar to ultrasound and will allow cardiologists to view the status of coronary stents used to open clogged arteries during angioplasty. A more glamorous way of pu...

A new replacement

...with a hygenic sheath complete with electrodes and optical windows.TruScan is expected to be released in Europe this year and on the Australian market in 2002....

Discovery of World’s smallest laser

...cause of their potential applications in miniature optical computer circuitry and communicationsdevices, Yang...atively new type of microscope called a near-field optical scanning microscope. “Near-field optical microscopy is a very powerful technique, providing a snap...

Studying brain anatomy without surgery

...d by near infrared laser diodes is cariied through optical fibres to a person's head. The light penetrates th...od volume.The scattered light is then collected by optical fibers, sent to detectors and analysed by a computer.By examining how much is absorbed, Gratton and ...

Next time somebody complains about your strange behavior, take it as a compliment

...g a brain scanning techniques called near-infrared optical spectroscopy. The brain scans showed that all groups used both brain hemispheres for creative tasks, but that the activation of the right hemispheres of the schizotypes was dramatically greater than that of the schizophrenic and average subjects, sug...

Optical Imaging Added To Ultrasound To Improve Imaging Of Breast Cancer

...new study shows that combining a technology called optical tomography with standard ultrasound imaging can he...oved and examined. By combining ultrasound with optical tomography, which employs diffused light in the near infrared (NIR) spectrum, the researchers were a...

Nanotechnologists Specify Limitation For Devising Small Machines

...ent performed by a University of Arizona// team of optical sciences doctoral candidate John D. Perreault and assistant professor of physics Alexander D. Cronin. Perreault and Cronin directly measured how close speeding atoms can come to a surface before the atoms' wavelengths change, said a statement from t...

Microscopic Nanobombs Blow Apart Breast Cancer Cells

...e experimenting with the molecules and considering optical and thermal properties, and found we could trigger microscopic explosions of nanotubes in wide variety of conditions." When the other researchers saw these nano explosions, they came up with the idea of using them against cancer cells. "The nanobom...

Novel Technique For Targeting Small-Cell Lung Cancer

...with fluorescent agents enables tumor detection by optical imaging techniques including endoscopy. The main advantages of this method are high sensitivity and outstanding spatial resolution. In a recent work, researchers from Israel used novel backbone cyclic peptides, which function as Somatostatin recepto...

Telemedicine Project Implemented for Indian Railways

...way Network. , M. P. The Indian Railway has had an optical fibre network in many sections that runs parallel railways track. Almost the whole of southern Railway is so connected. The project was inaugurated on 17th of September by Dr. Das, Director General Medical Services from the Railway Board. On the 43...

Detecting Brain Abnormalities in Babies Using New Brain Scanners.

...e advantages of both MRI & ultrasound. It uses the optical tomographic technique to produce images of the brain. The mechanism is that it allows light to pass through the tissues and the output is analyzed by a computer terminal. The light source used is a safe and low intensity laser which produces shor...

A forgery: the cloning (controversy) research

...ions about Hwang. In a way, we were all chasing an optical illusion." <br...

New Portable Helmet Scanner To Examine Newborns

...facilities as it works by using a technique called optical tomography to generate images showing how the brain is working, reported the online edition of BBC News. The helmet scanner, which scientists hope could be commercially available within a few years, incorporates 32 light detectors and 32 sources of...

New Multi-functional Sensing Tool To Investigate Cystic Fibrosis

...scale is an exciting opportunity for complementing optical imaging techniques. There are many clinical research problems that these biosensors can help with.” During the same ACS session, the Georgia Tech team will also present findings of a related project. A collaboration with Estelle Gauda at Johns Ho...

Nanotechnology Promises Huge Medical Benefits

...logies. Our broad goals are to develop concepts of optical functionality on the smallest possible size scale, at the lowest possible energy level, and on the shortest possible time scale'. With parallel advancements taking place in the field of science and technology and the implementation of novel theoret...

A Unique Technique To Visualize How The heart functions Developed

...he new voltage-sensitive dyes, together with novel optical techniques, have greatly enhanced the understanding of how the heart works. The researchers hope to continue their work towards the development of a high-speed, depth-resolved 3-D imaging system that makes use of what may be the fastest camera at 100...

Terahertz Imaging Promises To Revolutionize Breast Cancer Treatments

...inutes. There were substantial differences in the optical properties of normal and diseased tissue, Dr. Wallace said. The size and shape of the diseased regions at terahertz imaging were compared with those at histopathologic examination, with good results. All but three samples yielded invasive cancers. In...

Insulin Crystals Holds Promise In Diabetes research

... of crystal formation, including semiconductor and optical materials, geological crystallization, ice formation and the physiological and pathological crystallization of proteins and small molecules." source:Eureka Alet...

Its all in the mind and the eyes: senses deceive sometimes!

...at one sees in the world is influenced not only by optical and ocular-motor information, but also by one's purposes, physiological state, and emotions." Source: EurekAlert...

It’s All With Psychological Approach – Research Fins

...at one sees in the world is influenced not only by optical and ocular-motor information, but also by one's purposes, physiological state, and emotions.’ Source: Eurekalrt...

Nano-sized inhaled particles traverse quickly from nose to brain

...he manufacturing of smaller-than-ever electronics, optical and medical equipment. The sub-microscopic particles are also used in consumer products such as toothpaste, lotions and some sunscreens. Some doctors and scientists are concerned about what happens at the cellular level after exposure to the ultra...

Study Findings Could Help In Developing A Better Drug Delivery System

...nating the process," Yang said. "This is the first optical method to be developed to monitor this release. The main promise of this method is that it does not damage the cells being studied. Therefore, we are able to observe the process under true physiological conditions and watch it right as it is happenin...

Quantum Dot Technology in Cancer Detection and Treatment

...he fields of medicine and biology. The distinctive optical and electronic properties of Quantum Dots (QDs) prove to be useful in advanced therapies like detection and destruction of cancer cells. // A complete review of the latest literature and studies on Quantum Dots has been recently released on the nan...

Virtual Colonoscopy in Colorectal Cancer Prevention and Screening

...iscomfort and inconvenience caused by the standard optical colonoscopy test. "Our goal is not to take patients away from existing strategies like optical colonoscopy, but rather to attract those who are currently not being screened at all," Dr. Pickhardt...

Women's Skin Tone Influences Perception of Beauty, Health, Age

...kin or dullness in aging skin. “Because skin has optical depth, our eyes perceive discolorations on the surface and in underlying layers. This discoloration can be subtle or overt. We believe the judgment of facial skin age is influenced by uneven chromophore distribution and a decrease in light reflection...

Research 'Extraordinaire' To Restore Vision

...sponded to light, and activity was observed in the optical nerve, indicating that signals were being sent to the brain. It is indeed remarkable that the mature recipient retina, which was considered to lack the potential for repair, does in fact, supports the development of the transplanted immature cells. ...

New Technique to Detect Cancer in Early Stages

... normal or not, he said. Conventional methods of optical testing used normal white light or ultraviolet light. White light allows doctors to view only late-stage tumours that have already caused abnormalities on the tissue surface, Huang said. Ultraviolet light cannot penetrate far into the tissue. The...

A New Rapid 3-D Cell-Growth Technique For Growing Heart Muscle

...'s made possible by a precise instrument called an optical force transducer that gives more precise readings than that used by other teams. The measurement showed that the BEHM that had formed in just four days after a million cells were layered on fibrin gel could contract with an active force of more th...

Technology Making LASIK Safer for Those Who Have Had Previous Eye Surgery

...ich provide information on how the eye works as an optical system and significantly helps improve night vision ? Topographic analyzers, which give detailed views of the cornea, the clear tissue at the front of the eye that covers the iris and pupil and focuses light rays entering the eyeThese advances should...

New Computed Imaging Technique Uses Hazy Images to Improve View

...utational image-forming method // that is used for optical microscopy, which is capable of generating clear, ...nthetic Aperture Microscopy, ISAM is beneficial to optical microscopy, just the same way ‘magnetic resonance imaging’ is to nuclear magnetic resonance, and wha...

UC Davis Creates New Nanoparticles

...llionth of a meter. These new nanoparticles have optical and magnetic properties that can be used for biosensors - devices that use these properties to test samples of food products, the environment and even human blood. "These are two very useful properties when we want to use [the nanoparticles] for se...

Cancer Cells Forming Blood Vessels Send Their Copper to the Edge

...per and zinc. Overlaying these elemental maps onto optical images of the cells, Finney and her colleagues then correlated elemental content with cellular structures. “Our findings were very clear,” said Finney. “We observed a dramatic relocalization of between 80 and 90 percent of cellular copper to the ti...

Common Ingredient in Big Macs and Sodas Can Stabilize Gold Nanoparticles for Medical Use

...unction as in vivo sensors, photoactive agents for optical imaging, drug carriers, contrast enhancers in computer tomography and X-ray absorbers in cancer therapy. Despite their promise, however, scientists have been plagued with problems making nontoxic gold nanoparticle constructs. Kattesh Katti, profes...

Dry Eye Syndrome Affects Visual Functions

...largest refractive index differential in the human optical system and is consequently of critical importance for clear vision. DES patients with an unstable tear film can usually clear a blurred image temporarily by blinking frequently to redistribute the tear film over the ocular surface. However, this ma...

Detection of Malignant Breast Tumors Made Simpler and More Effective

..., with a near-infrared fluorophore. When used with optical tomography, an imaging method that transmits near-infrared light through the body, doctors can reconstruct a three-dimensional image of tissues deep inside the breast, highlighting areas where malignant tumors appear. The agent also may be used du...

Aspirin Therapy for Heart Disease Found More Effective for Men Than Women

...ffective," Dorsch said. The testing device uses an optical sensor to "see" what percentage of the platelets in the blood sample clump together. Anything less than 40 percent platelet inhibition is considered aspirin resistant. "We really don't know the mechanism," Dorsch said. "It could be that women have...

Bubbles may Pave Way for Producing Nanoscale Electronic Components

... Then they examined the resulting film under both optical and electron microscopes, and found that the nanow...help integrate such components into electronic and optical devices, the researchers said. The findings appear in the journal Nature Nanotechnology, reports N...

Soft Contacts Designed for Cone-Shaped Cornea

... a relatively small population, but it causes huge optical problems," says Geunyoung Yoon, assistant professor in the Departments of Ophthalmology and Biomedical Engineering, the Center for Visual Science, and the Institute of Optics. "These people have problems so severe, they can't tolerate glasses. They c...

Envisat Captured Breath of Volcano

...g between image acquisitions. Combined radar and optical data acquired from space are also very useful when an eruption begins. The synoptic view taken from optical and radar instruments aboard Envisat can simultaneously show the ash plume, the ash falling area, th...