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anionic dyes have a negative charge and attach to cationic surfaces and vice versa when the cationc dyes which are postively charged attach to anionic surfaces...
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Why do bacteria tend to stain better with cationic dyes?
Cationic dyes are positively charged, bacteria must have negatively charged dyes on their surface to attract.
What causes a stain to adhere to bacteria cells and why all colored dyes not necessarily useful for simple staining?
The causes a stain adheres to bacterial cells is the color-bearing ions (chromophores) and they might be positively charged (cationic), such as methylene blue, basic fuchsin, and crystal violet, because bacteria are negatively charged and anionic chromophores, such as eosin, will not stain bacteria because of the electrostatic repelling forces that are involved.
Why are all colored dyes not necessarily useful simple staining?
Acidic dyes contain anionic chromospores. Anionic chromospores such as eosinate- will not stain because of electrostatic repelling forces that are involved.
What is difference betweemn dyes and pigments?
difference between dyes and pigment
Would water be a suiable solvent for every dye?
-Cationic dyes (basic dyes) are soluble in polar solvents such as water, alcohols -Nonionic Fat-soluble dyes line metal-free azo and anthraquinone dyes are soluble in aromatic and aliphatic hydrocarbons. -Metal-complex dyes are normally soluble in alcohols, ketones, glycoethers
What is the difference between natural and unnatural dyes?
Natural dyes are found in nature (for example using beetroot to dye something purple) unnatural dyes are man-made.unnatural dyes are made up of chemicals or other substances.......
Difference between dye and stain?
A stain is temporary whereas dyes are permanent and can be removedonly after cell wall destruction.
What is the Difference between dyes and stains in biology?
a dye is used on inanimate objects & stain is used on animate objects .
What is the difference between acidic dye and basic dye?
basic dyes are more effective for bacterial staining than acidic dyes because basic dyes have a positive charged chromogen. Bacterial nucleic acids and certain cell wall components carry a negative charge that strongly binds to the cationic chromogen.
What is the difference between Metachromasia and the stain Congo red?
Metachromasy is the attribute of certain dyes changing in biological tissues changing color based on the tissues involved. Congo Red is a particular dye, in a category separate from Metachromasia dyes, though it does act as a PH indicator between pH 3.0 and 5.2.
What is the difference between hexene and methylbenzene?
Methylbenzene is used to manufacture benzene, urethane raw materials, and other organic chemicals. It is used in the production of pharmceuticals, dyes, cosmetic nail products
What is the difference between active ingredients and non-active ingredients?
Active ingredients are those that have an effect on the body. Inactive ingredients are fillers, dyes and binders used to carry or deliver the active ingredient.
