Negative Stain Test Nigrosin Stain Smear

Practo

Tests

Gurgaon

Gurgaon Sector 43

Negative Stain Test Nigrosin Stain Smear

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Test Information

The negative stain is particularly useful for determining cell size and arrangement. Nigrosin is an acidic stain. This means that the stain readily gives up a hydrogen ion and becomes negatively charged. Since the surface of most bacterial cells is negatively charged, the cell surface repels the stain.

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