Toluidine blue stain of Mast Cell
Toluidine blue is a basic thiazine metachromatic dye that stains nuclei blue, and can be used to differentiate different types of granules (e.g. within mast cells).
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Endospore Staining – Principle, Procedure, Result
There are two methods which are commonly used to stain bacterial endospore such as Schaeffer Fulton and Klein methods.
Capsule Staining – Procedure, Principle, Result
Capsule staining is a differential staining method, where two different stains are used such as the primary stain and the counterstain.
Flagella Staining – Principle, Procedure, Result
Flagella can not be seen under a bright-field microscope by using ordinary stains. A simple and useful method has been used for visualization of flagella is known as wet mount technique.
Bacterial Flagella Staining by Leifson Flagella Stain Method
In 1930, Leifson introduced a simple flagella stain, using this stain he observed that mutations leading to nonflagellated from flagellated bacteria were common, as well as mutation leading to loss of motility without loss of the flagellum itself.
Parasporal Crystal Stain – Principle, Procedure, Result
Production of parasporal crystals is a unique ability (among Bacillus species) of Bacillus thuringiensis. This stain is a means of rapid identification of the species.
Sudan Black B Staining – Principle, Procedure, Applications
Sudan Black is a slightly basic dye and will combine with acidic groups in compound lipids, thus staining phospholipids also. An alternative stain to the Sudan Black B stain.
Lactophenol Cotton Blue Staining – Principle, Procedure, Result.
lactophenol cotton blue definition Lactophenol Blue Solution or Lactophenol cotton blue is a wet mounting medium and staining agent which is used for the preparation of microscopic slides of fungi for examination. Fungal elements are stained intensely blue. You might be thinking, why should we learn this technique or what is the purpose of this … Read more
Ziehl-Neelsen Staining (ZN Staining) – Principle and Procedure, Result
Ziehl Neelsen stinging method is used to differentiate between the acid-fast and non-acid fast bacteria.
Bacterial Smear Preparation
A bacterial smear is a thin layer of bacterial cell/culture which is placed on a clean, grease-free microscopic slide to observe a clear image under a microscope.