LIVE/DEAD™ Sperm Viability Kit

LIVE/DEAD™ Sperm Viability Kit - FAQs

2 product FAQs found

What is the fluorescence emission maxima of SYBR 14 dye and propidium iodide?

When bound to DNA, the fluorescence emission maxima of these dyes are 516 nm and 617 nm, respectively. The spectra are available in Figure 1 of the Product Manual.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.

How do I prepare dead cell controls for LIVE/DEAD cell viability assays?

There are two easy options. One is to heat-inactivate the cells by placing at 60 degrees C for 20 minutes. The second is to subject the cells to 70% ethanol. Alcohol-fixed cells can be stored indefinitely in the freezer until use, potentially up to several years.

Centrifuge cells, pellet, and remove supernatant.
Fix cells: Add 10 mL ice cold 70% ETOH to a 15 mL tube containing the cell pellet, adding dropwise at first while vortexing, mix well.
Store in freezer until use.
When ready to use, wash twice and resuspend in buffer of choice.

Find additional tips, troubleshooting help, and resources within our Cell Analysis Support Center.