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Indiana University Associate Professor Dongwhan Lee, who led the research, said the tool is able to sense cyanide below the toxicity threshold established by the World Health Organization.
"This is the first system that works in water at normal pH levels and can be modified at will to enhance its reactivity," Lee said. "We are now looking at how to make the detector more sensitive."
He said another unique aspect of the detector molecule is its modular structure.
"This is an essentially three-component chemical device with an activator, a receptor and a reporter module," Lee said. "These three components we can change at will in the future, either to make the detector more sensitive, or have it detect an entirely different toxin by sending out signals as different colors of light. Because of the structure's modularity, a change in one of the three components doesn't really affect the others."
Lee and the study's first author, graduate student Junyong Jo, report the research in the Journal of the American Chemical Society.
Copyright 2009 by United Press International.
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