Home Products Most Popular Contact
No items in your cart.
The page below is a sample from the LabCE course Histology Special Stains: Nervous Tissue. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Histology Special Stains: Nervous Tissue (online CE course) »
How to Subscribe
Histology CE Package$65 Add to cart
Individual course$20 Add to cart

Image courtesy of Wikimedia Commons.

Luxol Fast Blue (LFB) Staining - Chemistry

Luxol fast blue (LFB) stains are used to identify myelin in nervous tissue. The image demonstrates a loss of myelinated fibers at the basis pontis in the brainstem. This staining technique takes advantage of a simple acid-base reaction. LFB is a sulfonated copper phthalocyanine dye. Tissue sections are stained with the LFB solution to allow the base of the dye to exchange with the base of the myelin proteolipid, resulting in a dark blue precipitate. The excess dye is removed with 95% ethanol, then the tissue section is differentiated in lithium carbonate and 70% ethanol until the gray matter is colorless. The white matter will be blue to blue-green.