Detecting exposure to chemicals From: Resource | Date: July 1, 1998| Author: | Copyright American Society of Agricultural Engineers Jul 1998. Provided by ProQuest LLC.Copyright information

A microspic sensor that can determine the inner workings of a living cell was recently unveiled at the Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy in New Orleans. The sensor could find wide use in the laboratory and may someday detect signs of human exposure to biological and chemical weapons.

One sign of a living cell's health is the level of ions inside it. Biologists usually measure the levelby injecting dyes into a cell or poking it with electrodes.

Raoul Kopelman and his colleagues at the University of Michigan, Ann Arbor, sought a less invasive procedure and ...

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