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Capture Sandwich Immunoassay

It’s just like an ELISA.

Only better.

It’s just like an ELISA, but on a bead.


A capture sandwich immunoassay is used to detect an antigen (target) with the use of a capture antibody attached to the surface of a microsphere and a detection antibody that incorporates a fluorescent label, forming a “sandwich.” This assay is commonly used to measure a large number of hormones, blood products, enzymes, drugs, disease markers, and other biological molecules.

xMAP® Technology Advantages Over ELISA


  • Multiplexing reduces costs and labor
  • Generates more data with less sample
  • Delivers faster, more reproducible results because you’re analyzing all the markers in one sample
  • Open architecture platform allows you to make your own or buy a kit from one of our partners

Partner Kit Applications


  • Alzheimer’s Biomarkers
  • Cancer Markers
  • Cardiac Markers
  • Cellular Signaling Markers
  • Cytokines
  • Chemokines & Growth Factors
  • Endocrinology Markers
  • Isotyping
  • Matrix Metalloproteinases
  • Metabolic Markers
  • Brain & Nervous System Markers
  • Sepsis Markers
  • Skin Markers
  • Toxicology Markers