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Invitrogen™ ProLong™ Gold Antifade Mountant with DNA Stain DAPI
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Catalog No. P36941
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1 x 2 mL
5 x 2 mL
1 x 10 mL
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P36941 1 x 2 mL
P36935 5 x 2 mL
P36931 1 x 10 mL
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Catalog No. P36941 Supplier Invitrogen™ Supplier No. P36941
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ProLong Gold Antifade Mountant with DNA Stain DAPI come mixed and ready-to-use to make counterstaining more convenient and consistent while protecting fluorescently stained samples.

ProLong Gold Antifade Mountant with DNA Stain DAPI is a mounting media that can be directly applied to fluorescently labeled cell or tissue samples on microscope slides. It comes ready-to-use and stored at room temperature—just apply a drop, add a coverslip, cure, and image. ProLong Gold Antifade Mountants come in a 2-mL dropper bottle or 10-mL bottle. It is formulated with the blue DNA stain DAPI to make your nuclear counterstaining more convenient and consistent when preparing your samples for imaging.

ProLong Gold Antifade Mountant with DNA Stains DAPI contains chemical components designed to protect fluorescent dyes from fading (photobleaching) during fluorescence microscopy experiments. It is a curing mounting media that forms an optical path of 1.47 RI and allows longer-term storage of the sample.

Many mountants can quench initial fluorescence signal strength by up to 80%. ProLong Gold Antifade Mountant was developed to minimize this initial signal quenching for the broadest range of colors and dyes and is formulated with the DAPI DNA nuclear stain to simplify your experiments. DAPI stain is excited by UV light at 360 nm when bound to DNA, with an emission maximum at 460 nm, and is detected using a DAPI traditional filter.

ProLong Gold Antifade Mountant is not recommended for mounting samples containing fluorescent proteins such as GFP or TagRFP but can be used with Alexa Fluor dyes of your choice. For superior antifade protection of fluorescent proteins and fluorescent dyes, ProLong Diamond or ProLong Glass Antifade Mountants are recommended. ProLong Glass mountants are recommended for all immersion oil imaging applications. For immediate viewing of a sample, choose our non-curing mountant, SlowFade Gold Antifade Mountant with DAPI.

Specifications

Quantity 1 x 2 mL
Product Type Antifade Mountant
Content And Storage Store at room temperature.
Product Line ProLong
Reagent Type Mounting Solution, Antifade Solution
Volume (Metric) 2 mL
What do ProLong Gold, ProLong Diamond and ProLong Glass antifade mountant reagents contain?

They are composed of proprietary antifades and polymers in aqueous buffers.

Can I use ProLong Gold, ProLong Diamond, or ProLong Glass mounting medium in a multi-well plate?

No. If the sample cannot be sealed with a coverslip, we recommend the use of SlowFade antifade mountant.

What can affect sample curing of ProLong Gold-, ProLong Diamond-, and ProLong Glass-mounted samples?

Our ProLong Gold, ProLong Diamond, and ProLong Glass mounting media harden ('cure') by the evaporation of water. Placing the mounted samples in a humid or refrigerated environment would slow down the evaporation process ('curing').

Are ProLong, ProLong Gold, ProLong Diamond, and ProLong Glass reagents compatible with DyLight dye-conjugated antibodies and streptavidin and with other organic dyes?

We have not tested ProLong, ProLong Gold, ProLong Diamond, or ProLong Glass on DyLight dye-conjugated proteins or with other organic dyes, but it is likely that they will be compatible.

Can I use any of the ProLong, ProLong Gold, ProLong Diamond, or ProLong Glass reagents on live samples?

No. ProLong, ProLong Gold, ProLong Diamond, and ProLong Glass reagents are intended for use on fixed or fixed/permeabilized samples. Only ProLong Live Antifade Reagent (Cat Nos. P36974 and P36975) is intended for use with live cells.

What happens when ProLong, ProLong Gold, ProLong Diamond, or ProLong Glass antifade mountant is curing? Is there a chemical reaction?

The evaporation of water is the “curing” process for Prolong, ProLong Gold, ProLong Diamond, and ProLong Glass antifade mountant. The evaporation of water causes the polymer to harden. There is no chemical reaction. Please note that there is no curing/hardening for any of the SlowFade reagents or ProLong Live products.

DAPI and Hoechst dyes are quite similar to each other. Why would I choose one over the other?

DAPI is a very common blue-fluorescent dye for nuclear counterstaining and gives very bright labeling on nuclei in fixed and permeabilized cells and tissues. However, it is considered to be a semi-permeant to impermeant stain and provides inconsistent staining of live cells. Hoechst 33342 dye is cell-permeant and stains with the same binding mechanism and fluorescent color; it is preferred for live-cell imaging and is just as good as DAPI for fixed cell labeling.