Biomarker Testing Services

RayBiotech offers a comprehensive suite of laboratory biomarker testing services in a wide range of therapeutic areas. With our expertise, we work with clients to provide a unique approach to each project and optimal strategies from design to completion.
Our lab can help clients to:

  • Identify biomarkers
  • Design experiments
  • Choose the best analytical methodology
  • Develop and validate the specific assay(s)

Our capabilities include advanced technologies and specialized expertise in the below areas.

Service Platforms

Bead-Based Arrays

Bead-Based Arrays

RayBiotech’s multiplex bead array is an advanced technology using antibody-conjugated multiplex beads to quantitatively detect a wide range of analytes with high sensitivity in a liquid phase.

  • A variety of sample types can be used including whole blood, PBMCs and other primary and immortalized cell lines.
  • Capability for up to 12-color or 18-color analysis depending upon the needs of the assay.
  • Multiplexing for up to 50 targets proteins.
  • Custom and pre-validated panels are available.
  • Minimal sample volume required per test.


Quantibody® glass slide arrays are fully quantifiable multiplex immunoassays.

  • Contains fully validated assays for cytokines, chemokines, growth factors, soluble receptors, and many more molecule classes.
  • Design and validation of customized biomarker panels available for >1200 human, >640 mouse, and other species: Rat, Sheep, Chicken, Cow, Pig, Horse, Dog, Primate, Rabbit, Cat & Dolphin.
  • Up to 40 proteins can be measured with just 50 µL of sample.


Choose from over 4000 targets across 16 different species and 6 different ELISA platforms for single target biomarker detection.

  • Sandwich ELISA
  • Phosphorylation ELISA
  • High-Sensitivity Immuno-PCR
  • Competition-based ELISA
  • Cell-based ELISA
  • Transcription Factor Activity Assay


RayBiotech’s Auto-Western Service marries our state-of-the-art capillary immunoprobing system with our vast pre-validated antibody library.
Our high throughput system can achieve ng to pg sensitivity with only 5 µL of starting material.

  • Standard curve may be included for full quantification.


Single molecule array (Simoa™) testing is a powerful new technique that utilizes the isolation of individual immuno-complexes on paramagnetic beads to generate data that is orders of magnitude more sensitive than standard sandwich based immunoassay techniques.

  • Choose from a library of over 4,000 targets
  • Sensitivity as low as femtogram (fg/ml) levels

The RayBio Ultrasensitive Simoa Testing Services reach femtogram (fg/ml) levels, allowing the detection and quantification of biomarkers at concentrations previously difficult or impossible to measure.

Discuss your project requirements

Featured Resources

Get additional information to help you advance your studies from articles on the science underlying antibody-based techniques to video protocols, application notes, and more.

    Discovering endometriosis biomarkers with multiplex cytokine arrays.
    Quantitative screening of serum protein biomarkers by reverse phase protein arrays.
    Cancer Stem Cell Biomarker Discovery Using Antibody Array Technology
    Antibody arrays in biomarker discovery

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