 |
|
'Smart' holograms help patients help themselves
February 04, 2008Patients with diabetes, cardiac problems, kidney disorders or high blood pressure could benefit from the development of new hologram technology. The new "smart" holograms, which can detect changes in, for example, blood-glucose levels, should make self-diagnosis much simpler, cheaper and more reliable, write Chris Lowe and Cynthia Larbey in February's Physics World.
A hologram is a recording of an optical interference pattern created when laser light shone on an object is made to overlap with a separate beam of light that does not pass through the object. When light is shone onto the interference pattern, a 3D image of the original object is recreated.
Traditional holograms, like those on your credit card, are stored on photo-sensitive materials and remain unchanged with time. Smart holograms, however, use materials called hydrogels that shrink or swell in response to local environmental conditions. Such holograms can therefore be used as sensors to detect chemical imbalances in potentially fatal situations.
Smart Holograms, a spin-out company from the Institute of Biotechnology at Cambridge University, has already developed a hand-held syringe to measure water content in aviation fuel tanks - necessary because aeroplane engines are liable to freeze mid-air if there is more than 30 parts water to million fuel.
The same ability to detect chemical imbalances could be used by diabetics to check their blood-sugar levels; by patients with kidney disorders to check on adrenaline levels; by security forces to detect chemicals like anthrax after a terrorist attack; or, less urgently but with wide applicability, by glazing firms to detect whether water has crept in between window panes, something that can cause long-term structural damage.
Since the Nobel-prize-winning physicist Dennis Gabor first unveiled their underlying principles, holograms have become widely used as authentication tags to deter copying, and on credit cards, passports, banknotes. They also underpin the technology of supermarket scanners and CD players.
As Chris Lowe and Cynthia Larbey write, "Visual images produced by smart holograms can be made to appear or disappear under appropriate chemical or biological stimuli which makes them ideal for use in Breathalysers, monitoring heart conditions and for various security and smart packaging systems."
Institute of Physics
Smart Holograms, a spin-out company from the Institute of Biotechnology at Cambridge University, has already developed a hand-held syringe to measure water content in aviation fuel tanks - necessary because aeroplane engines are liable to freeze mid-air if there is more than 30 parts water to million fuel.
The same ability to detect chemical imbalances could be used by diabetics to check their blood-sugar levels; by patients with kidney disorders to check on adrenaline levels; by security forces to detect chemicals like anthrax after a terrorist attack; or, less urgently but with wide applicability, by glazing firms to detect whether water has crept in between window panes, something that can cause long-term structural damage.
Since the Nobel-prize-winning physicist Dennis Gabor first unveiled their underlying principles, holograms have become widely used as authentication tags to deter copying, and on credit cards, passports, banknotes. They also underpin the technology of supermarket scanners and CD players.
As Chris Lowe and Cynthia Larbey write, "Visual images produced by smart holograms can be made to appear or disappear under appropriate chemical or biological stimuli which makes them ideal for use in Breathalysers, monitoring heart conditions and for various security and smart packaging systems."
Institute of Physics
Holograms Current Events and Holograms News RSSNYU physicists find way to explore microscopic systems through holographic video
Physicists at New York University have developed a technique to record three-dimensional movies of microscopic systems, such as biological molecules, through holographic video.
Cell phones using lens-free imaging promise to improve health monitoring
Cell phones have already revolutionized the way people around the world communicate and do business. Thanks to advances being made at UCLA, they are about to do the same thing for medicine.
New holographic method could be used for lab-on-a-chip technologies
Researchers at Purdue University have developed a technique that uses a laser and holograms to precisely position numerous tiny particles within seconds, representing a potential new tool to analyze biological samples or create devices using nanoassembly.
Bringing Second Life to life: Researchers create character with reasoning abilities of a child
Today's video games and online virtual worlds give users the freedom to create characters in the digital domain that look and seem more human than ever before. But despite having your hair, your height, and your hazel eyes, your avatar is still little more than just a pretty face.
UA optical scientists add new, practical dimension to holography
University of Arizona optical scientists have broken a technological barrier by making three-dimensional holographic displays that can be erased and rewritten in a matter of minutes.
Nature leads the way for the next generation of paints, cosmetics and holograms
A plant-like micro-organism mostly found in oceans could make the manufacture of products, from iridescent cosmetics, paints and fabrics to credit card holograms, cheaper and 'greener'.
Holograms make for better vision tests
A new paper published in the July 1 issue of OSA's Optics Letters shows that researchers in Australia have created a new one-step test that uses holograms to diagnose the astigmatic error of the human eye, a key measurement in determining the appropriate prescriptions for eye glasses in patients.
Magnetic 'handedness' could lead to better magnetic storage devices
Better magnetic storage devices for computers and other electronics could result from new work by researchers in the United States and Germany.
X-ray holograms expose secret magnetism
Collaborative research between scientists in the UK and USA has led to a major breakthrough in the understanding of antiferromagnets, published in this week's Nature.
Increase in counterfeit antimalarial drugs prompts call for crackdown, better detection
A worsening epidemic of sophisticated anti-malarial drug counterfeiting in southeast Asia and Africa is increasing the likelihood of drug-resistant parasites, yielding false-positive results on screening tests and risking the lives of hundreds of thousands of malaria patients.
More Holograms Current Events and Holograms News Articles
 |
Mirage 3-D Instant Hologram Maker by Opti-Gone International A GIFT IDEA FROM SCIENCE NO ONE CAN TOUCH. Make a mirage appear right before your eyes! Even the camera sees it. But you can't touch it! And neither will anyone else. Scientists call these amazing phenomena three-dimensional real images. Indeed, the illusions you can create are so brilliant, so alive with color and depth, they defy, yet demand, explanation. Never has the fine line between reality and perception been exposed with such startling clarity. Mirage® faithfully reproduces every detail of the object you display within it. Mirage produces a small, full-color hologram of natural, lifelike appearance, allowing 360-degree viewing. To achieve these effects, the Mirage utilizes a patented technology of two concealed, opposing parabolic mirrors. In overall appearance, Mirage resembles... |
 |
3D Hologram Chamber by National Party Supply Do you see the quarter on the plate? Are you sure? As hard as you try, you will not be able to touch whats sitting on the plate. Its an optical illusion and your hand will go right through it! Put any object you want on the plate! |
 |
5 Hologram Laser Pet Toy by Ethical Pets 5 Hologram Laser Pet Toy |
 |
The Complete Book of Holograms: How They Work and How to Make Them by Joseph E. Kasper (Author), Steven A. Feller (Author) Clear, thorough account, without complicated mathematics, explains the two models of holography—the geometric and the zone plate—and different types of holograms, including transmission, reflection, phase, projection, rainbow, and multiplex. They also show basic setups for making holograms and provide step-by-step instructions so readers can make their own. “I predict that Kasper and Feller will become a standard reference on holography for students and interested laymen”—James A. Van Allen. 116 b/w illustrations. |
 |
Star Wars - 2006 - Hasbro - Saga Collection - Emperor Palpatine Action Figure - #043 - Battle of Endor - Episode VI - Return of the Jedi - w/ Exclusive Hologram Figure - New - Limited Edition - Collectible by Toy Rocket 2006 - Hasbro - Star Wars - The Saga Collection - Emperor Palpatine Action Figure - #043 - Battle of Endor - Episode VI - Return of the Jedi - Includes Exclusive Hologram Figure - New - Mint in Package - Limited Edition - Collectible |
 |
Night of 1000 Ex-Boyfriends by The Holograms Debut album from this pure pop girl gang sounds like Josie & The Pussycats getting harrassed by G.G. Allin at a really really really cool slumber party while loaded on donuts, diet pills, and cheap champagne. Produced by Blag Dahlia of the Dwarves. |
 |
Paper Hologram Gift Bags, Four colors Variety 12 Pack, Small, 9"x 7.5"x 4" by Jed Mart |
 |
Naruto CCG Hologram Card Protecting Sleeves by gkworld |
 |
Hologram Time Traveler by Digital Leisure Based on the Sega arcade game. For the first time ever Play the home version of the original Hologram coin-operated arcade game on your home computer! If you have 3D glasses, use them to play in startling 3D or select the 2D option to play without the glasses and then get ready for the non-stop action of Hologram Time Traveler. Beautiful Kyi-La, Princess of the Galactic Federation, is kidnapped by the evil renegade scientist Vulcor. You control the daring Marshall Gram and travel through the ages of time to rescue the Princess. Adventure through time as you confront space knights, ninja warriors, cavemen, futuristic robots, cowboys and countless other adversaries. Travel from prehistoric caves to 26th century space ships as you battle to save Kyi-La and prevent Vulcor from tearing the... |
 |
Luke Skywalker In Hoth Gear (Green Card) (Hologram) (Collection 1) by Kenner Luke Skywalker In Hoth Gear Green Card Hologram Collection 1 |
| © 2009 BrightSurf.com |