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Science 21 December 1973:
Vol. 182. no. 4118, pp. 1255 - 1256
DOI: 10.1126/science.182.4118.1255
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Articles

Procion Brown: An Intracellular Dye for Light and Electron Microscopy

Burgess N. Christensen 1

1 Division of Biological and Medical Sciences, Brown University, Providence, Rhode Island 02912

Procion browvn has been used to inject lamprey giant interneutros. The dye is opaque to both light and electrons, and imparts a pink color to the neuron in situ during iontophoresis. It has the advantage over cobaltolus chloride that postinjection treatment with ammonium sulfide is eliminated and the integrity of the surrounding neuropil is ensured.


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