Chemistry of oyster 'glue' identified
West Lafayette, Ind. (UPI) Sep 20, 2010
Identifying the "glue" oysters use to stick together to form large reefs could provide advances for fisheries, boating and in medicine, U.S. researchers say.
Researchers at Purdue University say they've uncovered the chemical components of the oysters' adhesive, which could help those trying to boost dwindling oyster populations, lead to creation of materials to keep boat hulls clean without harming the environment, and aid researchers in creating wet-setting adhesives for use in medicine and construction, a university release said Monday.
"With a description of the oyster cement in hand, we may gain strategies for developing synthetic materials that mimic the shellfish's ability to set and hold in wet environments," Jonathan Wilker, a Purdue professor of chemistry and materials engineering, said.
"Dentistry and medicine may benefit from such a material. For instance, it would be great to have a surgical adhesive that could replace staples and sutures, which puncture healthy tissue and create potential sites for infection."
Researchers found the adhesive produced by oysters had almost five times the amount of protein and more water than what is found in oyster shells.
"The adhesive material differed significantly in composition from the shell, which indicates that the oyster produces a chemically distinct substance for sticking together," Wilker said.
Oysters stick together to reproduce and to protect themselves from predators and large waves. The reefs they create can stretch for miles and filter large volumes of water, prevent erosion and create a storm wall that strengthens coastlines, researchers said.
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Space Technology News - Applications and Research
London, UK (SPX) Sep 20, 2010
In his 1979 novel 'The Fountains of Paradise' Science Fiction author Arthur C Clarke imagined a not-too-distant future where technology would have progressed so far as to allow us to engineer a material strong enough to be used as a cable connecting an orbiting satellite with the ground - a concept commonly referred to as 'The Space Elevator' or 'Tether'. It involves having a satellite in ... read more
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