Ghost Dye Red 710 Fixable Viability Dye #90232
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Product Information
Product Usage Information
a. 1X PBS (azide- and protein/serum-free)
b. Incubation Buffer: Dissolve 0.5 g Bovine Serum Albumin (BSA) (#9998) in 100 ml 1X PBS. Store at 4°C.
2. Remove Ghost Dye from -20°C and bring to room temperature.
3. Collect cells by centrifugation and aspirate supernatant.
4. Wash cells by centrifugation in excess 1X PBS. Repeat if necessary.
5. Resuspend cells to a concentration of 1-10 x 106/mL in 1X PBS.
6. Centrifuge the Ghost Dye before opening then add 1 uL for each 1 mL of cell suspension and vortex immediately.
7. Incubate for 30 minutes at 4°C protected from light.
8. Wash by centrifugation in excess incubation buffer. Discard supernatant. Repeat.
9. Cells can then be fixed, permeabilized, and immunostained based upon experimental design and recommended protocols.
10. Exclude cells with high Ghost Dye fluorescence from analysis. These were non-viable cells at the time of fixation. See details below for excitation and emission specifications.
Ghost Dye Red 710 Fixable Viability Dye excited by the red (633-647 nm) laser line and has a peak emission of 710 nm that can be detected using the recommended 710/50 band pass filter commonly used for detection of Alexa Fluor® 700.
Storage
Product Description
Ghost Dye Red 710 Fixable Viability Dye is used to discriminate viable from non-viable mammalian cells in flow cytometry applications. Ghost Dye Red 710 Fixable Viability Dye irreversibly binds free amines available on the cell surface as well as intracellular free amines exposed in cells with compromised cell membranes. Non-viable cells with loss of membrane integrity will be labeled with significantly more dye than healthy cells in the same sample. The cells may then be fixed, and the degree of labeling will be preserved through fixation, permeabilization, and antibody incubation steps. Cells that exhibit increased fluorescence intensity were non-viable at the time of fixation and can be excluded from analysis.
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