EBSS, no calcium, no magnesium, no phenol red - FAQs

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3 product FAQs found

I understand that some media are worse than others for fluorescence imaging. How do I choose?

Most media contain phenol red, which can quench fluorescent dyes in the visible wavelengths. Most media also contain autofluorescent components, such as riboflavin, which can reduce signal-to-background. We offer FluoroBrite DMEM and HEPES-based Live Cell Imaging Solution, which have been optimized for fluorescent imaging. We also offer a number of media without phenol red. But if none of these are reasonable options for your experiment, then we also offer BackDrop Background Suppressor ReadyProbes Reagent, which can be added to quench media autofluorescence.

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

Should I be concerned about phenol red in my media when labeling my live cells with fluorescent dyes?

Some cell types accumulate phenol red, and this can pose a problem in the use of many fluorescent probes. Phenol red can quench visible-wavelength dyes and, although phenol red is non-fluorescent, various impurities may be fluorescent. We have many phenol red-free media to choose from. Our Live Cell Imaging Solution (HEPES-based) and our FluoroBrite DMEM have been optimized to be phenol red-free as well as to be non-autofluorescent.

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

Do you offer media without phenol red (phenol red-free media)?

Yes, please visit this page for a list of our phenol red-free media (http://tools.thermofisher.com/content/sfs/brochures/Phenol_RedFree_Media_Glance.pdf).

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