eBioscience™ Fixable Viability Dye eFluor™ 780

Catalog number: 65-0865-14

Invitrogen™  Related applications: Flow Cytometry

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Description

Fixable Viability Dye eFluor™ 780 is a viability dye that can be used to irreversibly label dead cells prior to cryopreservation, fixation and/or permeabilization procedures. Unlike 7-AAD and propidium iodide, cells labeled with Fixable Viability Dyes can be washed, fixed, permabilized, and stained for intracellular antigens without any loss of staining intensity of the dead cells. Thus, using Fixable Viability Dyes allows dead cells to be excluded from analysis when intracellular targets are being studied. Fixable Viability Dyes may be used to label cells from all species.

Fixable Viability Dye eFluor™ 780 can be excited by the red (633 nm) laser line and has a peak emission of 780 nm that can be detected using a 780/60 band pass filter (equivalent to APC-eFluor™ 780 or APC-Alexa Fluor™ 750). Please make sure that your instrument is capable of detecting this dye. For compensation, it is recommended to use a sample of the cells of interest stained with the Fixable Viability Dye. If the percentage of dead cells is expected to be less than 5%, then it is recommended to take a small aliquot of cells and heat them at 65°C for 1 minute then immediately place on ice for 1 minute. After this treatment, the heat-killed cells can be combined 1:1 with live cells and then stained with the Fixable Viability Dye. Our testing suggests that compensation out of most detectors is negligible, with compensation out of PE-Cyanine7 being the highest at <5%. Actual compensation values will depend on each investigator's specific instrument, filter sets, and PMT voltage settings.

Fixable Viability Dye eFluor™ 780 is supplied as a pre-diluted solution prepared in high-quality, anhydrous DMSO. It should be protected from light and moisture. Store at -70°C with dessicant. It may be freeze-thawed up to 20 times. Allow vial to equilibrate to room temperature before opening.

Reported Application
Flow Cytometric Analysis

For Research Use Only. Not for use in diagnostic procedures.

Specifications

Color: Infrared
For Use With (Equipment): Flow Cytometry
Detection Method: Fluorescent
Excitation⁄Emission (nm): 633⁄780
Product Line: eBioscience™
Product Size: 100 tests

Documents

Manuals & protocols