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Lugol's iodine is a liquid made up of two parts potassium iodide for every one part elemental iodine in water. [8] Lugol's iodine was first made in 1829 by the French physician Jean Lugol. [7] [8] It is on the World Health Organization's List of Essential Medicines. [9] [10] Lugol's iodine is available as a generic medication and over the ...
The image on the right stains with Lugol's iodine, and identifies a squamous cell carcinoma, which does not pick up the stain. Chromoendoscopy is a medical procedure wherein dyes (often the same stains used in histology ) are instilled into the gastrointestinal tract at the time of visualization with fibre-optic endoscopy .
Lugol's solution or Lugol's iodine (IKI) is a brown solution that turns black in the presence of starches and can be used as a cell stain, making the cell nuclei more visible. Used with common vinegar (acetic acid), Lugol's solution is used to identify pre-cancerous and cancerous changes in cervical and vaginal tissues during "Pap smear" follow ...
Hemiamyloidity in mycology refers to a special case of cell wall amyloidity where the blue staining by iodine only occurs when the tissue was pretreated with potassium hydroxide solution (KOH) or other strong bases, whereas direct application of iodine causes a red reaction when using Lugol's solution, but no reaction when using Melzer's reagent.
Gram stain (Gram staining or Gram's method), is a method of staining used to classify bacterial species into two large groups: gram-positive bacteria and gram-negative bacteria. It may also be used to diagnose a fungal infection. [1] The name comes from the Danish bacteriologist Hans Christian Gram, who developed the technique in 1884. [2]
Staining solutions are one way to make comparative analysis of starch granules more accessible, depending on what type of stain is specifically used. For example, as stated by Kovárník and Benes, Lugol's solution stains the grains a dark blue color, in order to distinguish the starch grain from other common structures that can appear similar ...
Staining dyes are dyes used for staining in microbiology and histology. Subcategories. ... Liu's stain; Lugol's iodine; M. Malachite green; Mallory's trichrome stain;
After Coomassie staining, areas of degradation are visible as clear bands against a darkly stained background. [ 3 ] Modern usage of the term zymography has been adapted to define the study and cataloging of fermented products, such as beer or wine, often by specific brewers or winemakers or within an identified category of fermentation such as ...