Science and Technology
publicado em 04/09/2011 às 12h30:00
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Laser designed with telecommunications technology burns fat and treats acne

Infra-red beam penetrates the skin, with minimal damage on the way to reach and destroy the deepest pockets of fat

 
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A laser developed at the University of Michigan in the United States, is designed to melt the fat without burning the surrounding tissue. It could be used, for example, in the treatment of acne, the researchers said.

With 1,708 nanometers, infrared ray has the edge on a single wavelength, which can absorb fat more efficiently than water, which makes up more than half of the human body. It can penetrate the skin, with minimal damage on the way to reach and destroy the deepest pockets of fat, said the professor of electrical engineering and internal medicine Mohammed Islam. The research is described in an article published in Lasers in Surgery and Medicine.

The laser can treat acne, seeking the production of oil from sebaceous glands. "It is usually very difficult to penetrate deep enough into the skin because of water absorption, but we choose a wavelength that is in line with the fat," said Islam.

The new laser, which is the size of a DVD player, the glands can reach more than 1.5 mm below the skin. "Acne is an extremely common condition, not an ideal treatment. This laser system has the potential to change the skin's sebaceous glands. We are very excited about this and other potential uses of this device," said the professor of dermatology, Jeffrey Orringer, UM Medical School.

To avoid superficial burns, the researchers realized the need to cool the skin before treatment. They conducted experiments in human specimens that had been removed due to its proximity to non-skin cancer melanoma.

The UM team is not the first to think this kind of treatment, but is believed to be the first to do so with telecommunications technology. "In the middle of the last decade, there have been experiments like this, using a free electron laser, which was roughly the size of an entire hospital. It was an interesting result, but it was not a practical light source. I'm a fan of optical fiber . We're doing what we know in this area for years: the construction of a compact and economical laser with real potential to make it reach the market, "said Islam.

Source: Isaude.net
   Palavras-chave:   Laser    Infrared beam    Length    Wave absorption    Fat    Skin    Destruction    Sebaceous glands    Burns    University of Michigan    USA   
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