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Color-by-number neurons.

In the study of nervous systems, staining represents a useful but often tedious and expensive technique for making nerves visible. Now, neurobilogists in Canada say they have developed a new dye procedure that's quick and easy and lets researchers monitor cells' electrical and chemical activity. Patrick A. Carr of the University of Manitoba in Winnipeg injects the dye, tetramethylrhodamine, through an electrode inserted into the nerve cell under study. The sugar part of the dye molecules makes it easy for the dye to get to the far reaches of the cell. "We see fine cellular processes that we couldn't see before," Carr says.
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Title Annotation:dyeing procedure that uses tetramethylrhodamine allows researchers to study nervous systems and activity of cells
Author:Pennisi, Elizabeth
Publication:Science News
Article Type:Brief Article
Date:Nov 20, 1993
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