Quantibody Array Technology

High Detection Sensitivity

Each item in the Quantibody product line has been tested to have similar or better detection sensitivity than traditional ELISA. Reproducibility and sensitivity is bolstered by use of a photobleaching resistant Alexa dye. Moreover, because we use an open format glass slide as our substrate, dozens or even hundreds of antibodies can be arrayed on the same array. Our custom quantibody array allows users to choose their own panels for cytokine detection. Raybiotech has tested and used the highest affinity antibodies possible on the market and each pair has been especially optimized for maximum sensitivity.

Outstanding Sensitivity

Sensitivity depends on the binding affinity of the antibody-antigen complex, which can vary for each cytokine. Raybiotech tests for the highest possible affinity, and each pair has been especially optimized for maximum sensitivity. Moreover, for the system itself, our Quantibody products have been tested to have similar or better detection sensitivity than traditional ELISA.

Many Sample Options

Quantibody arrays can accomodate many different type of samples: cell culture supernatant, serum, plasma, tissue lysate, and other body fluids. Typically, all that’s necessary is 50-100µl per sample for one array.  The following parameters can be used for samples volume: 50-100µl of cell culture supernatant, 50-100μl of original or diluted serum or plasma; or 20-200µg of protein for cell lysates and tissue lysates. For those samples in which a high response for one cytokine is expected, while a low response is expected for another, we recommend testing each sample in stepwise dilutions.

The options are unlimited!  In addition to the specialized kits we currently offer, you can make use of our pioneering expertise to help design your array.  Numerous cytokines are available for this purpose, so contact us to customize your array today.