Nigrosin - Capsule Visualization Applications

Nigrosin excludes from polysaccharide capsules revealing unstained halos around Klebsiella pneumoniae, Streptococcus pneumoniae.

Microbiology labs mix 1:1 bacteria suspension confirming capsule-mediated virulence factor preventing phagocytosis.

Bacillus anthracis poly-D-glutamate capsule (1-3µm halo) distinguished from slime layer artifacts.

Non-toxic alternative to India ink eliminates carbon particle phagocytosis during examination.