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1 .This is Scientific American 60-Second Science. I'm Cynthia Graber. This'll just take a minute.
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2 .When TV sets die, they usually end up incinerated or in landfills.
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3 .But now researchers from England's University of York believe they've found a valuable use for told TVs in medicine.
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4 .Liquid crystal displays, or LCDs are becoming increasingly popular.
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5 .One key component of the display is a compound called polyvinyl-alcohol, or PVA.
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6 .The researchers recovered the PVA from television screens.
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7 .They then heated the material in water with microwaves, cooled it back down and washed it with ethanol.
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8 .That process creates a new material called expanded PVA.
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9 .And our bodies fail to mount an immune response against expanded PVA,
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10 .so it's a good substance for biomedical applications.
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11 .It's porous with a large surface area,
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12 .so the expanded PVA is a good material for cellular scaffolding that can be implanted and on which tissues can regenerate.
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13 .It can also be used for pills and dressings that deliver drugs.
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14 .The research was published in the journal Green Chemistry.
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15 .The study authors say billions of televisions with LCD technology are nearing the end of their lives.
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16 .Which means that medical dramas that once played out on the TVs may soon come from the TVs.
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17 .Thanks for the minute, for Scientific American 60-Second Science. I'm Cynthia Graber.
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