What does propidium iodide mean?
Definitions for propidium iodide
pro·pid·i·um iodide
This dictionary definitions page includes all the possible meanings, example usage and translations of the word propidium iodide.
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Wikipedia
Propidium iodide
Propidium iodide (or PI) is a fluorescent intercalating agent that can be used to stain cells and nucleic acids. PI binds to DNA by intercalating between the bases with little or no sequence preference. When in an aqueous solution, PI has a fluorescent excitation maximum of 493 nm (blue-green), and an emission maximum of 636 nm (red). After binding DNA, the quantum yield of PI is enhanced 20-30 fold, and the excitation/emission maximum of PI is shifted to 535 nm (green) / 617 nm (orange-red). Propidium iodide is used as a DNA stain in flow cytometry to evaluate cell viability or DNA content in cell cycle analysis, or in microscopy to visualize the nucleus and other DNA-containing organelles. Propidium Iodide is not membrane-permeable, making it useful to differentiate necrotic, apoptotic and healthy cells based on membrane integrity. PI also binds to RNA, necessitating treatment with nucleases to distinguish between RNA and DNA staining. PI is widely used in fluorescence staining and visualization of the plant cell wall.
Numerology
Chaldean Numerology
The numerical value of propidium iodide in Chaldean Numerology is: 9
Pythagorean Numerology
The numerical value of propidium iodide in Pythagorean Numerology is: 5
Translations for propidium iodide
From our Multilingual Translation Dictionary
- بروبيديوم يوديدArabic
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"propidium iodide." Definitions.net. STANDS4 LLC, 2025. Web. 24 Jan. 2025. <https://www.definitions.net/definition/propidium+iodide>.
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