Custom Premix Selecting "Custom Premix" option means that all of the beads you have chosen will be premixed in manufacturing before the kit is sent to you.
Developed in 1983, the ELISpot assay represents the convergence of plate-based Enzyme Linked Immunosorbent Assays (ELISAs) with membrane-based Western blotting technologies, permitting detection of secreted analytes at the single cell level.
ELISpot assays may be performed either with antibodies directly conjugated to the detection motif (enzyme or fluorochrome) or as a two-step process involving a biotin/streptavidin-conjugated Ab pair.
ELISpot assays offer multi-dimensional, quantitative assessment of effector function(s) at the single cell level with superior sensitivity and resolution.
True spot has a densely colored center which fades toward the edges the size and/or color intensity of the spots is determined by the amount of cytokine released.