Oil Red O staining uses which solvent to prepare the stain?

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Multiple Choice

Oil Red O staining uses which solvent to prepare the stain?

Explanation:
Oil Red O is a fat-soluble dye, so it must be dissolved in a non-aqueous solvent that dissolves lipids without overly removing them from the tissue. Isopropanol serves as the standard solvent because Oil Red O dissolves readily in it, and it works well with frozen tissue sections used for lipid staining, providing good dye uptake while preserving tissue integrity during staining and rinse steps. Water cannot dissolve Oil Red O, so an aqueous solvent won’t work. While ethanol or methanol can be used in some protocols, they are less ideal due to different solubility characteristics and potential lipid extraction or tissue effects. Therefore, the solvent used to prepare Oil Red O is isopropanol.

Oil Red O is a fat-soluble dye, so it must be dissolved in a non-aqueous solvent that dissolves lipids without overly removing them from the tissue. Isopropanol serves as the standard solvent because Oil Red O dissolves readily in it, and it works well with frozen tissue sections used for lipid staining, providing good dye uptake while preserving tissue integrity during staining and rinse steps. Water cannot dissolve Oil Red O, so an aqueous solvent won’t work. While ethanol or methanol can be used in some protocols, they are less ideal due to different solubility characteristics and potential lipid extraction or tissue effects. Therefore, the solvent used to prepare Oil Red O is isopropanol.

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