thionin
9.9
A purple dye used to stain cells or tissue for viewing under a microscope
- noun
- /ˈθaɪənɪn/
- Specialized
:
tiónina
- The sections were then mounted on gelatin-coated slides, allowed to dry for approximately 24 hours, and counterstained with 0.25% thionin for identification of the nervous tissue cytoarchitecture.
Examples
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The scientist used thionin to stain the nerve cells for better visualization under the microscope.
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To prepare the tissue samples for observation, they applied thionin as a counterstain during the microscopy process.
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Another protein in the thionin family, hordothionin, is a target of research by ARS scientists and their colleagues in Madison, Wisconsin.
Academic text (1999) -
For the experiment, the slides were treated with thionin to highlight the specific structures in the biological samples.
Surface Forms
Etymology
Thionin for the purple stain comes from the prefix thio- meaning 'sulfur', because the dye belongs to a chemical group that includes sulfur. So the name links the dye's chemical nature to its use for staining samples under the microscope.
