Propidium Iodide is a red-fluorescent dye that can be used to stain cells.

Solid

Propidium Iodide is a cell-membrane impermeable dye with characteristic excitation maximum at 535 nm and emission maximum at 617 nm which intercalates with nucleic acids with a stoichiometry of one dye per 4-5 base pairs with little sequence preference. Propidium Iodide has evidenced of having no toxic effects on neurons, being today’s most common marker for membrane integrity and cell viability when applied prior to fixation (pre-fixation Propidium Iodide staining method). The pre-fixation staining has been widely used for quantitative assessments of neuronal cell decline in models of acute neurodegeneration, visualized as intensely labeled PI-pycnotic nuclei of degenerating neurons . Propidium Iodide cannot cross the membrane of live cells, making it useful to measure the percentage of apoptotic cells by flow-cytometric analysis. The flow cytometric data shows an excellent correlation with the results obtained with both electrophoretic and colorimetric methods. This new rapid, simple and reproducible method proves useful for assessing apoptosis of specific cell populations in heterogeneous tissues such as bone marrow, thymus and lymph nodes.

Medlife has not independently confirmed the accuracy of these methods. They are for reference only.

Room temperature or refrigerated transportation.

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

• Description: Propidium Iodide is a cells dye with red fluorescence. Propidium Iodide only can be taken up by cells with impaired membrane integrity, it can be used in cell cycle and cell viability assays.
  Method: For cell nucleus staining.
  1. Cells are washed with PBS, and then incubates cells with Propidium Iodide (15 min).
  2. Fluorescent images are acquired with a confocal laser scanning microscope (Olympus Fluoviewer. 3.1, Japan).
• Description: Propidium Iodide is a cells dye with red fluorescence. Propidium Iodide only can be taken up by cells with impaired membrane integrity, it can be used in cell cycle, cell viability and necrocytosis assays.
  Method: For cell walls staining.
• Description: Propidium Iodide is a cells dye with red fluorescence. Propidium Iodide only can be taken up by cells with impaired membrane integrity, it can be used in cell cycle, cell viability and necrocytosis assays.
  Method: For cell staining.
  1. Fix cultured cells with paraformaldehyde (4%; 10 min).
  2. Incubate cells with Propidium Iodide (50 mg/L; 15 min; dark).
  3. Fluorescent images are acquired with a confocal laser scanning microscope.

• [1]. Hezel M, et al. Propidium iodide staining: a new application in fluorescence microscopy for analysis of cytoarchitecture in adult and developing rodent brain. Micron. 2012 Oct;43(10):1031-8.  [Information]

  [2]. Hezel M, et al. Propidium iodide staining: a new application in fluorescence microscopy for analysis of cytoarchitecture in adult and developing rodent brain. Micron. 2012 Oct;43(10):1031-8.  [Information]

  [3]. A rapid and simple method for measuring thymocyte apoptosis by propidium iodidestaining and flow cytometry. J Immunol Methods. 1991 Jun 3;139(2):271-9.  [Information]

产品不同，其溶解度不同。建议根据产品选择合适的溶剂配制储备溶液；配成溶液后，建议分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)。-80°C 储存时，建议在 6 个月内使用，-20°C 储存时，建议在 1 个月内使用。