Cell coloring or cell staining can be defined as a technique of coloring of cells for better visualization under a microscope. By using distinct stains or colors, one can see particular cell components, like the nucleus, cell walls, or the whole cell. Most colors are used on fixed cells, or non-living cells, while only a few colors can be used to see living cells.
Hematoxylin and eosin are the most commonly used stains used in histology and histopathology. The basic reason behind the cells staining is to increase cell view or certain cellular components under a microscope. You can buy a cell staining kit at https://www.bosterbio.com/products/cell-staining-kits.html.
Cells are also colored to highlight the process of metabolism of cells or distinguish between living cells and dead cells in the given sample. Cells can also be measured by coloring cells to determine their biomass in an environment. Cell coloring techniques depend on the type of stain and analysis used for the cell.
The first technique is permeabilization in which the cell is treated generally with mild surfactants, which dissolve cell membranes. The second technique is fixation which serves to "improve" cell network through the preparation process. The third is the installation which involves linking samples to microscope slides for observation and analysis.
The last technique is coloring which is used to stain cells to visualize their networks, components, and metabolic process. This process involves dipping into the dye solution and then rinse and observe the sample under a microscope. Sometimes, coloring requires the use of the Mordant, which is a chemical compound that reacts with stains to make insoluble and colored deposits.