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American Chemical Society's Weekly PressPac -- Aug. 8, 2007

es with 97 percent accuracy. Researchers also used the polymer to check the freshness of a tuna by detecting the amount of amines present in the sample. The sensitivity of the described assay is better than the typical mammalian sense of smell and is able to detect this nonvolatile amine at hazardous levels before the fish would begin to smell rancid, the report states. The approach also shows promise for detecting spoilage in other food types, it adds.

ARTICLE #4 FOR IMMEDIATE RELEASE A Food Freshness Sensor Using the Multistate Response from Analyte-Induced Aggregation of a Cross-Reactive Poly(thiophene)


John J. Lavigne, Ph.D.
University of South Carolina
Columbia, South Carolina
Phone: 803-777-2295


Toward real-world Star Trek tricoder devices
Chemical & Engineering News

So you drop by the store tonight and buy the latest model of a Star Trek tricoder-type device a handheld instrument for scanning alien environments and use it to check your home air for indoor pollutants. As farfetched as that idea may seem, such devices are inching closer to reality, according to an article ( scheduled for the August 13 issue of Chemical & Engineering News (C&EN), ACSs weekly newsmagazine.

The article, by C&EN Senior Correspondent Marc Reisch

Contact: Michael Woods
American Chemical Society

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