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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K8350-1

To better understand cellular activity within the brain, technician Derek Fisher views fluorescent images of calcium in cells that are affected by oxidative stress. The calcium binds to a fluorescent dye that the imaging system can measure.

Photo by Keith Weller.

640 pixels wide: (k8350-1.jpg)

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Last Modified: 5/23/2006
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