Dictionary > Basic dye

Basic dye

Definition
noun, plural: basic dyes
(biological techniques) A dye that ionize in solution giving a positively-charged ions and is used to produce a brilliant color during staining of biological specimen
Supplement
Biological staining is a common laboratory technique applied in the study and identification of a specimen. It is carried out for use in microscopy. An unstained specimen would be difficult to observe in a typical microscope. Staining or dyeing the specimen helps in highlighting microscopic structures such as cell organelles, cells and tissues. There are different kinds of staining techniques. Examples include gram staining, endospore staining, counterstaining, differential staining, Ziehl-Neelsen stain, Haematoxylin and eosin (H&E) staining, Papanicolaou staining, PAS staining, Masson’s trichrome, Romanowsky stains, silver staining, Sudan staining, and Conklin’s staining. Dyes that are used for biological staining may be basic, neutral, or acid.
Basic dyes used in biological staining ionize in solution to give cations (positively charged ions). The cation in a basic dye is the colored component of the dye molecule that binds to anionic groups of nucleic acids or acidic mucopolysaccharides. Basic dyes stain basophilic structures such as nuclei, ribosomes and GAGs. Examples of basic dyes are methylene blue, toluidine blue, thionine, and crystal violet.
Synonym(s):

  • basic stain

Compare:

  • acid dye
  • neutral stain
  • See also:

    Mentioned in:

  • Basoplasm
  • Neutrophilous
  • Basophil adenoma


  • You will also like...

    Control of body movement
    Control of Body Movement

    Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..

    Genetics – Lesson Outline & Worksheets
    Genetics – Lesson Outline & Worksheets

      Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics – Definition: Heredity and ..

    Homeostasis by water regulation
    Homeostasis of Organism Water Regulation

    Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

    Darwin's Finches - Natural Selection
    Darwin and Natural Selection

    This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

    Lights' Effect on Growth
    Lights’ Effect on Growth

    This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..

    Thermographic image of face and neck
    Regulation of Organic Metabolism, Growth and Energy Balance

    The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..

    Related Articles...

    No related articles found

    See all Related Topics