Thermo Fisher L34963 80 assays LIVE/DEADFixable Purple Dead Cell Stain Kit for 405nmexcitation
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L34963 80 assaysLIVE/DEAD Fixable Purple Dead Cell Staining Kit for 405 nm excitation

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LIVE/DEAD™ Fixable Purple Dead Cell Staining Kit can be used for the fixation and permeabilization steps in intracellular antibody staining Determine cell viability before fixation with formaldehyde to remove biohazardous substances. This kit is optimized and validated for use with violet laser flow cytometers.

• Stable—dyes are freeze-dried in individual vials to maintain stability

• Robust—staining patterns are the same before and after fixation

• Low compensation—comparable to other fluorophores The spectral overlap of the clusters is minimal

ViewSelection guide for all fixable viability dyes for flow cytometry analysis .

Stable
Unlike products sold as solutions, LIVE/DEAD™ Fixable Purple Stain comes in convenient packaging of 40 test bottles, ensuring the dye lasts longer Maintain stability and performance. Amine-reactive dyes in solution lose their effectiveness over a short period of time, so it is recommended that the vial be used up after rehydration. If this is not possible, aliquot the vial contents into small volumes and store at -80°C, avoiding freeze-thaw cycles.

Robust
Dead cell identification stains can lose sensitivity after treatment with fixatives such as formaldehyde or ethanol-based fixation methods required for intracellular phosphorylation studies. LIVE/DEAD™ Fixable Purple Stain is an amine-reactive dye that covalently binds to intracellular and extracellular amines, and the staining pattern remains after formaldehyde fixation.

Low Compensation
LIVE/DEAD™ Fixable Purple Stain was selected for its fluorescent properties to minimize interference with other violet dyes from the excitation 488 nm blue laser Compensation between dyes. The purple fluorescent reactive dye has a maximum excitation wavelength of ∼416 nm and excites well with a 405 nm violet laser, and its maximum emission wavelength is ∼451 nm, so it can be used in the first channel of most violet laser flow cytometers. collection.

How it works
For cells with damaged cell membranes, the dye can interact with free amines inside the cells and on the cell surface to achieve strong fluorescent staining. In living cells, the reactivity of the dye is limited to the amines on the cell surface, resulting in less fluorescence intensity. The intensity difference between live and dead cells is typically greater than 50-fold and can be easily distinguished.

Available in a variety of colors
LIVE/DEAD™ Fixable Dead Cell Stain is available in a variety of colors to meet your multicolor detection panel needs.
For Research Use Only. Not for use in diagnostic procedures.