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Aug 10, 2022 · Negative staining requires an acidic dye such as India Ink or Nigrosin. India Ink or Nigrosin is an acidic stain. This means that the stain readily gives up a hydrogen ion (proton) and the chromophore of the dye becomes negatively charged. Since the surface of most bacterial cells is negatively charged, the cell surface repels the stain.
stain的意思、解釋及翻譯：1. to leave a mark on something that is difficult to remove: 2. If a material stains, it absorbs…。了解更多。
STAIN meaning: 1. a dirty mark on something that is difficult to remove: 2. a thin, clear paint that you put on…. Learn more.
Stain definition: . See examples of STAIN used in a sentence.
Stain definition: To discolor, soil, or spot. Dictionary Thesaurus Sentences Grammar Vocabulary Usage Reading & Writing ...
Explain the importance of Gram stains in health care and microbiology. Define "differential stain" and contrast with "simple stain." Identify the Gram stain as a type of differential stain; Tell what the Gram stain tells us about different species of bacteria. Examine Gram-stained cells and interpret whether the cells are Gram-positive or Gram ...
stain a dirty mark on something that is difficult to remove, especially one made by a liquid: blood stains fingerprint a mark on a surface made by the pattern of lines on the end of a person's finger, often used by the police to identify criminals: Her fingerprints were all over the gun.
