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Drop-n-Stain EverBrite™ Mounting Medium

Wet-set antifade mounting medium optimally formulated for preserving fluorescence of our CF® dyes and other fluorochromes.  Dropper bottle makes for quick and easy dispensing. Available with or without DAPI.

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Product Description

Drop-n-Stain EverBrite™ Mounting Medium is antifade medium in a dropper bottle for fast & easy dispensing.

Features:

  • Convenient dropper bottle for pipette-free mounting
  • Protects fluorescent dyes from rapid photobleaching
  • Compatible with cyanine-based fluorophores like Cy®3, Cy®5, and Alexa Fluor® 647, unlike VECTASHIELD®
  • Available with our without DAPI for nuclear counterstaining
  • Works as well as original EverBrite™, but less viscous for rapid DAPI staining

Drop-n-Stain EverBrite™ Mounting Medium is a wet-set medium that remains liquid. After mounting, coverslips can be sealed with nail polish or Biotium’s CoverGrip™ Coverslip Sealant. Mounted slides can be stored at 4°C or -20°C, protected from light. Antibody-stained slides can be preserved for a year or longer (note: some labels, like phalloidin, are less stable during storage). Drop-n-Stain EverBrite™ Mounting Medium has a refractive index of 1.42.

Drop-n-Stain EverBrite FITC
Photostability of FITC staining in HeLa cells with Drop-n-Stain EverBrite™ Mounting Medium compared to buffer alone.

We also offer EverBrite™ Hardset Mounting Medium, which cures overnight to form a hard seal, eliminating the need to seal the edges of the coverslips.

EverBrite Mounting Media

ProductCounterstainCat. No.
EverBrite™ Mounting MediumNone23001
EverBrite™ Mounting Medium with DAPIDAPI23002
Drop-n-Stain EverBrite™ Mounting MediumNone23008
Drop-n-Stain EverBrite™ Mounting Medium with DAPIDAPI23009
EverBrite™ Hardset Mounting MediumNone23003
EverBrite™ Hardset Mounting Medium with DAPIDAPI23004
Alexa Fluor is a registered trademark of Thermo Fisher Scientific; Cy Dye is a registered trademark of GE Healthcare; VECTASHIELD is a registered trademark of Vector Laboratories.
 

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Support & Faq

EverBrite™ Mounting Medium

EverBrite™ Mounting Medium (23001) and EverBrite™ Mounting Medium with DAPI (23002) both have a refractive index of 1.46.  EverBrite™ Hardset Mounting Medium (23003) and EverBrite™ Hardset Mounting Medium with DAPI (23004) both have an initial refractive index of 1.38, which increases to 1.42 after 24 hours of curing, and 1.46 after 4 days, after which it remains constant

Category: EverBrite™ Mounting Medium

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EverBrite™ wet-set mounting medium is an aqueous, glycerol-containing medium. It can be removed from samples by washing several times with PBS or other buffer. However, washing with PBS will not remove DAPI staining.

For coverslips mounted on slides with EverBrite™ Hardset or EverBrite™ wet-set medium, the slides can be soaked in PBS in a slide jar for several hours with gentle agitation until the coverslip slides off (avoid prying or pulling the coverslip, which could damage the sample). Then wash the slide several times to remove any remaining mounting medium. If the coverslips have been sealed with CoverGrip™ Coverslip Sealant, soaking in PBS will remove the sealant as well. Other methods may be required to remove other types of coverslip sealants.

Category: EverBrite™ Mounting Medium

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Product shelf life, solubility, shipping and storage, and stability

Bioscience kits
The guaranteed shelf life from date of receipt for bioscience kits is listed on the product information sheet. Some kits have an expiration date printed on the kit box label, this is the guaranteed shelf life date calculated from the day that the product shipped from our facility. Kits often are functional for significantly longer than the guaranteed shelf life. If you have an older kit in storage that you wish to use, we recommend performing a small scale positive control experiment to confirm that the kit still works for your application before processing a large number of samples or precious samples.

Antibodies and other conjugates
The guaranteed shelf life from date of receipt for antibodies and conjugates is listed on the product information sheet. Antibodies and other conjugates often are functional for significantly longer than the guaranteed shelf life. If you have an older conjugate in storage that you wish to use, we recommend performing a small scale positive control experiment to confirm that the product still works for your application before processing a large number of samples or precious samples.

For lyophilized antibodies, we recommend reconstituting the antibody with glycerol and antimicrobial preservative like sodium azide for the longest shelf life (note that sodium azide is not compatible with HRP-conjugates).

Chemicals, dyes, and gel stains
Biotium guarantees the stability of chemicals, dyes, and gel stains for at least a year from the date you receive the product. However, the majority of these products are highly stable for many years, as long as they are stored as recommended. Storage conditions can be found on the product information sheet or product safety and data sheet, material safety data sheet, and on the product label. Fluorescent compounds should be protected from light for long term storage.

If you have a Biotium compound that has been in storage for longer than one year that you wish to use, we recommend performing a small scale positive control experiment to confirm that the compound still works for your application before processing a large number of samples or precious samples.

Expiration date based on date of manufacture (DOM)
If your institution requires you to document expiration date based on date of manufacture for reagents, please contact techsupport@biotium.com for assistance.

Chemical products with special stability considerations:

Esters

Ester compounds include the following:
• Succinimidyl esters (SE, also known as NHS esters), such as our amine-reactive dyes
• Acetoxymethyl esters (AM esters) such as our membrane-permeable ion indicator dyes
• Diacetate-modified dyes, like ViaFluor™ 405, CFDA, and CFDA-SE cell viability/cell proliferation dyes

Ester dyes are stable in solid form as long as they are protected from light and moisture. Esters are not stable in aqueous solution. Concentrated stock solutions should be prepared in anhydrous DMSO (see Biotium catalog no. 90082). Stock solutions in anhydrous DMSO can be stored desiccated at -20°C for one month or longer. Esters should be diluted in aqueous solution immediately before use. Succinimidyl esters (SE) should be dissolved in a solution that is free of amine-containing compounds like Tris, glycine, or protein, which will react with the SE functional group. AM esters and diacetate compounds should be dissolved in a solution that is free of serum, because serum could contain esterases that would hydrolyze the compound.

A note on CF™ dye succinimidyl ester stability
Succinimidyl esters are generally susceptible to hydrolysis, which can result in lower labeling efficiency. Heavily sulfonated dyes, such as the Alexa Fluor® dyes, DyLight® dyes and IRDyes® are particularly hygroscopic, worsening the hydrolysis problem. For example, the percent of active Alexa Fluor® 488 succinimidyl ester (SE) could be well below 50% by the time of application (according to the manufacturer’s product datasheet). In a number of Alexa Fluor® SE reactive dyes, the SE group is derived from an aromatic carboxylic acid, while in all of Biotium’s CF™ dyes the SE group is prepared from an aliphatic carboxylic acid. This structural difference reduces the susceptibility of CF™ dye SE reactive groups to hydrolysis, resulting in relatively stable reactive dyes with consistently higher labeling efficiency compared to other SE derivatives of other fluorescent dyes.

Maleimides, MTS and thiosulfate dyes
Like the succinimidyl ester dyes, these dyes are also susceptible to hydrolysis, although generally to a much lower degree. Thus, for long term storage, anhydrous DMSO is recommended for making stock solutions.

Other reactive dyes
Amines, aminooxy (also known as oxylamine), hydrazide, azide, alkyne, BCN, and tyramide reactive dyes, as well as dye free acids, are generally stable in aqueous solution when stored at -20°C for 6-12 months or longer, as long as no compounds are present that may react with the dye’s functional group. See the product information sheets for specific reactive dyes more information.

Coelenterazines and D-luciferin

Coelenterazines are stable in solid form when stored as recommended; they are not stable in aqueous solution. Concentrated coelenterazine stock solutions (typically 1-100 mg/mL) should be prepared in ethanol or methanol; do not use DMSO or DMF to dissolve coelenterazines, because these solvents will oxidize the compounds. Ethanol or methanol stocks of coelenterazine can be stored at -20°C or below for six months or longer; alcohol stocks may evaporate during storage, so use tightly sealing screw cap vials and wrap the vials with Parafilm for long term storage. Propylene glycol also can be used as a solvent to minimize evaporation. If the solvent evaporates, the coelenterazine will still be present in the vial, so note the volume in the vial prior to storage so that you can adjust the solvent volume to correct for evaporation if needed. Prepare working solutions in aqueous buffers immediately before use. Coelenterazines are stable for up to five hours in aqueous solution.

Aquaphile™ coelenterazines are water soluble formulations of coelenterazines. They are stable in solid form when stored as recommended. Aquaphile™ coelenterazines should be dissolved in aqueous solution immediately before use. They are stable for up to five hours in aqueous solution.

Note that coelenterazines are predominantly yellow solids, but may contain dark red or brown flecks. This does not affect product stability or performance. If your coelenterazine is uniformly brown, then it is oxidized and needs to be replaced.

D-luciferin is stable in solid form and as a concentrated stock solution when stored as recommended; it is not stable at dilute working concentrations in aqueous solution. Prepare concentrated D-luciferin stock solutions (typically 1-100 mg/mL) in water, and store in aliquots at -20°C or below for six months or longer. Prepare working solutions immediately before use.

Category: Mix-n-Stain™ Antibody Labeling Kits, DNA Quantitation Kits, NucView® Caspase 3 Enzyme Substrates, Luciferase Assays, CF® Dyes, Product shelf life, solubility, shipping and storage, and stability

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Many of our solid compounds are packaged by lyophilization, in which case they usually do not appear as fluffy powders, but form a film or coating on the sides of the vial. Simply add the appropriate volume of the recommended solvent to the vial to make the desired concentration stock solution, and swirl or gently vortex to mix. Make sure the solvent comes in contact with the inside walls of the vial to fully recover the product.

Category: Product shelf life, solubility, shipping and storage, and stability

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Most of our products are stable at room temperature for many days, but we recommend storage at 4°C or -20°C to prolong shelf life. In the case of many of our aqueous dye solutions, the compounds are very stable at room temperature, but we recommend cold storage to prevent the growth of mold or other microbes over time. Therefore, to save on shipping costs, products with recommended storage at 4°C or -20°C may ship at ambient temperature or with an ice pack. These products may thaw without affecting product performance. When you receive the product, place it under the recommended storage conditions.

Category: Mix-n-Stain™ Antibody Labeling Kits, DNA Quantitation Kits, NucView® Caspase 3 Enzyme Substrates, Luciferase Assays, CF® Dyes, Product shelf life, solubility, shipping and storage, and stability

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Shipping/Shelf-life

Shipping & Handling Disclaimer: Shipping and handling methods are calculated based on item temperature storage recommendation. Large, multi-item orders may be assessed additional fees. Shipping to Puerto Rico may be assessed additional fees. A Biotium customer service representative will contact you if additional fees are required. For expedited shipping, please request in the Order Notes section of the checkout page. Please note that products with recommended storage at 4°C or -20°C may ship at ambient temperature. This will not affect product performance. When you receive the product, place it under the recommended storage conditions.