Smart Hologram – Better Health Care

4 02 2008

Another landmark in the health care and hologram sectors! Scientists have developed smart holograms to help patients self diagnose!

Patients 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.

Science Daily 

I must say that the new hologram technology will be a boon to many struggling with ailments. Kudos to the team who developed the smart hologram. Hope that smart hologram will be available in the markets soon.





China Fights Counterfeit Medicines

12 07 2007

Chinese Food and Drug Official Executed for Accepting Bribes

China announced Tuesday its chief food and drug official has been executed for accepting bribes. The former head of China’s food and drug administration who took more than 400,000 pounds in bribes to license poor quality and fake medicines has been executed by the Chinese Government.

At Guilin Pharmaceutical in southern China, they’re worried about their reputation and their profits. They make World Health Organization-approved drugs for malaria, each blister pack carefully marked with a hologram. But the counterfeiters have now made 14 generations of hologram, each one more difficult to distinguish from the real thing. And fake Guilin anti-malarials are turning up all over Southeast Asia.

Source: http://www.pbs.org/newshour/bb/asia/july-dec07/execution_07-10.html





Holograms helps people with Astigmatism

11 07 2007

A new research in Australia suggests that people with astigmatism may soon look at holograms to diagnose their eye condition.

It is being hoped that 3D images will be easier for patients to use than current methods and allow optometrists to more quickly diagnose this common eye focusing problem.

In the most common form of the condition, the vertical and horizontal lines of a cross are in focus at two different distances, says Dr Avudainayagam. About 10% of the population have a degree of astigmatism that requires correction, he says, adding it can be very hard to correct if not caught at an early age. He says the current gold standard of diagnosing it involves patients trialling different lenses until they can see a test image 6 metres away completely clearly. This can be slow and cumbersome, and people have to remember how things look with each lens as they compare them. Dr Avudainayagam says the hologram method has already been tested on real eyes in another experiment involving a different focusing problem. – abc.net.au

Source: http://abc.net.au/news/stories/2007/07/10/1974208.htm





Holograms For Better Vision Tests

7 07 2007

Yet another innovation using a hologram.

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. This new technique adds to an earlier one, developed by the same researchers, for using a single hologram to measure another important property, the spherical refractive error of the eye.

In subjective refraction the spherical and cylindrical errors of the human eye are measured. Recently, we reported a technique by which the spherical error can be measured in one step using a hologram. We have now developed a holographic target consisting of sunburst patterns to measure the astigmatic error of the human eye as well. Apart from being simple, quick, and low cost, holography offers the advantage of being an open field refraction system that is devoid of the problem of proximal accommodation. We describe the holographic target, its working principles, the measurement procedure, and the initial results obtained. – ScienceDaily

Hologram Manufacturers, take a bow!

Source: http://www.sciencedaily.com/releases/2007/07/070705120743.htm