Cerebellar tissue was fixed with paraformaldehyde for later immunohistochemical analysis.

This dye can then be fixed with paraformaldehyde and the preparation used for conventional immunocytochemistry methods.

At the end of the experiment, the cells are fixed with paraformaldehyde for immunocytochemistry and fluorescence microscopy imaging.

A stimulatory signal was delivered to the cloned cells by syngeneic spleen cells that were exposed to OVA and then fixed with paraformaldehyde.