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ExoBrite™ EV Membrane Staining Kits

Fluorescent staining kits for bright, clean staining of EVs and exosomes. Suitable for detection by flow cytometry or microscopy.

Product Attributes

Dye

ExoBrite™ 490/515, ExoBrite™ 560/585

Colors

Green, Orange-red

Dye
Note: Due to operating restrictions related to our COVID-19 response, primary antibody conjugates of R-PE, APC, PerCP, HRP, or AP are temporarily unavailable. All other antibody options are still available. We apologize for the inconvenience. Please see our easy-to-use Mix-n-Stain™ Antibody Labeling Kits for labeling antibodies with R-PE, APC, tandem dyes, and enzymes.
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500 labelings
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Product Description

ExoBrite™ EV Membrane Staining Kits were designed to overcome some of the challenges of exosome detection, particularly in flow cytometry. ExoBrite™ stains bind to molecules in the exosome membrane for bright, specific staining, with little to no background.

Features

  • Stain the membranes of EVs and exosomes
  • Stain both purified and bead-bound exosomes
  • Bright signal and low background
  • Designed for detection by flow cytometry
  • Compatible with antibody co-staining
  • Available in 2 colors (more coming soon)
  • 1 vial makes 100 uL of 500X staining solution

Kit Components

  • ExoBrite™ EV Membrane Stain
  • ExoBrite™ Reconstitution Solution

Extracellular vesicles (EVs), including exosomes, are released from cells and are able to carry biological information between cells in different parts of the body. Therefore exosomes are increasingly studied for their potential use in drug delivery and medical diagnostic applications. Biotium developed ExoBrite™ EV Membrane Staining Kits for fluorescent labeling and detection of EVs and exosomes by flow cytometry. Other potential applications include fluorescence microscopy or other fluorescent exosome detection systems.

ExoBrite™ stains were designed to overcome some of the challenges of exosome detection, particularly in flow cytometry. While some dyes may form aggregates of a similar size as exosomes or EVs, thus confounding analysis, ExoBrite™ stains show little to no background, allowing stained exosomes to be accurately identified. ExoBrite™ stains bind to molecules in the exosome membrane for bright, specific staining. Unlike most other membrane dyes, ExoBrite™ stains do not bind non-specifically to polystyrene beads, meaning that they can be used to stain bead-bound exosomes.

Exosomes are often detected by using fluorescent antibodies targeting one or more of the tetraspanin proteins CD9, CD63, & CD81. ExoBrite™ EV Membrane Stains can be combined with antibody staining, for multi-parameter analysis. Biotium sells CD9 and CD81 monoclonal antibodies verified for exosome staining, available purified or conjugated to a large selection of bright and soluble CF® Dyes.

ProductEx/EmDetection channelsSizeCatalog Number
ExoBrite™ 490/515
EV Membrane Staining Kit
490/516 nmFITC100 Labelings30112-T
500 Labelings30112
ExoBrite™ 560/585
EV Membrane Staining Kit
562/584 nmPE, Cy®3100 Labelings30113-T
500 Labelings30113
 

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