Bioassays, kits, and reagents used to analyze various properties of living cell samples. Products include apoptosis assays, signal transduction assays, and cell growth and differentiation assays.
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Membrane-permeable live-cell labeling dye. Upon entering the cell, intracellular esterases cleave the acetoxymethyl (AM) ester group, yielding the membrane-impermeable Calcein Violet fluorescent dye. Apoptotic and dead cells with compromised cell membranes do not retain Calcein Violet 450.
Membrane-permeable live-cell labeling dye. Upon entering the cell, intracellular esterases cleave the acetoxymethyl (AM) ester group, yielding the membrane-impermeable Calcein Blue fluorescent dye. Apoptotic and dead cells with compromised cell membranes do not retain Calcein Blue.
Membrane-permeable dye used to determine changes in calcium concentrations in the cell using fluorescence microscopy, flow cytometry, fluorescence spectroscopy and fluorescence microplate readers. Once Indo-1 enters the cell, esterases cleave the AM group yielding a membrane-impermeable dye.
Imaging dye that binds to free Ca2+. Fura-2 is the preferred dye for ratiometric imaging microscopy with digital image analysis, especially when altering excitation wavelengths is more practical than detecting multiple emission wavelengths.
Membrane-permeable dye used to monitor changes in intracellular free calcium concentrations in the cell. Once eFluor™ 514 Calcium Sensor Dye enters the cell, cellular esterases cleave the AM group yielding a membrane-impermeable dye fluorescing at ≈520nm.
Can be used to irreversibly label dead cells prior to cryopreservation, fixation and/or permeabilization procedures. Unlike 7-AAD and PI, cells labeled with Fixable Viability Dyes can be washed, fixed, permabilized and stained for intracellular antigens without loss of staining intensity.