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Yahoo! My Yahoo! Mail More Yahoo! Services Account Options New User? Sign Up Sign In Help Yahoo! Search web search Home Singapore Asia Pacific World Business Entertainment Sports Technology Weekend Edition Top Stories Most Popular Photos Full Coverage Sitemap Ink-jet printers inspire scientists to make skin AFP - Monday, February 21 Send IM Story Print WASHINGTON (AFP) - – Ink-jet printing technology has inspired scientists to look for ways to build sheets of skin that could one day be used for grafts in burn victims, experts said. One technique involves a portable bioprinter that could be carried to wounded soldiers on the battlefield where it would scan the injury, take cells from the patient and print a section of compatible skin. Another uses a three-dimensional printer combining donor cells, biofriendly gel and other materials to build cartilage. The 3-D printer was shown at work, building a prototype of an ear during a half-hour demonstration at a Washington science conference. Hod Lipson of Cornell University in New York said it worked much like an ink-jet printer. "It spits out plastic to gradually build an object layer by layer... after a couple of hours you end up with a real physical object that you can hold in your hand," he said. "Just imagine -- if you could take cells from a donor, culture them, put them into an ink and recreate an implant that is alive and made of the original cells from the donor -- how useful that would be in terms of avoiding rejection," said Lipson. "That is where we are going. Let's see how far we can go." Studies using the technology in animals have shown promise, particularly with printed cartilage, which is relatively simple in its construction and is tough so it can withstand the rigors of printing. "There are very severe limitations," Lipson said. "We are right now limited to cells... that can handle being printed." Scientist James Yoo of Wake Forest University in North Carolina said his team's approach to printing skin has shown positive results in repairing skin in mouse and pig models. "One approach is to directly deploy cells to the wound site and the other approach is to build a tissue construct outside the body and transfer it into the body," said Yoo. The technology works in part via a scanner that takes a measure of the affected area and identifies the depth and extent of the injury, informing the bioprinter of how many layers of cells need to be made. Both scientists said the advances were still in their early stages and required more research and refinement before they are ready for human patients. "One of the challenges that we will eventually face is like anything else, when you are trying to transfer the technology into the body, how can we create and connect those tissues?" said Yoo. "Whatever you put in the body has to be connected with the body's blood vessels, blood supply and oxygen." Recommend Send IM Story Print News Search Top Stories Shell to sell African downstream assets Ink-jet printers inspire scientists to make skin US researchers defend animal testing Oral sex linked to cancer risk Extreme tides flood Marshalls capital More Top Stories » ADVERTISEMENT Most Popular Most Viewed Planet could be 'unrecognizable' by 2050, experts say Oral sex linked to cancer risk Mourinho home joy as Real close gap on Barca Britain's Fergie 'not invited to royal wedding' More Libya fighting amid fears of 'catastrophe' More Most Viewed » More Most Recommended » Elsewhere on Yahoo! Financial news on Yahoo! Finance Stars and latest movies Best travel destinations More on Yahoo! News Home Singapore Asia Pacific World Business Entertainment Sports Technology Weekend Edition Subscribe to our news feeds Top StoriesMy Yahoo!RSS » More news feeds | What are news feeds? Also on Yahoo! Answers Groups Mail Messenger Mobile Travel Finance Movies Sports Games » All Yahoo! Services Site Highlights Singapore Full Coverage Most Popular Entertainment Photos Yahoo! News Network Copyright © 2011 Yahoo! Southeast Asia Pte. Ltd. (Co. Reg. No. 199700735D). All Rights Reserved. Terms of Service | Privacy Policy | Community | Intellectual Property Rights Policy | Help

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