ELISpot & Fluorospot Products

From research to discovery

 

Step 1

ELISpot step 1

The cytokine-specific capture antibody is coated onto the PVDF-bottomed 96-well microtitre plate (not required for the pre-coated plates).

Step 2

ELISpot step 2

The cell suspension is added to the wells and incubated overnight at 37°C in a CO2 incubator, allowing the coated antibody to capture the target cytokine while being secreted.

Step 3

ELISpot step 3

The biotinylated cytokine-specific detection antibody binds to the capture cytokine.

Step 4

ELISpot step 4

The alkaline phosphatase-conjugated streptavidin binds specifically to biotin.

Step 5

ELISpot step 5

The BCIP/NBT substrate is added and turns into coloured spots wich can be quandtified either by an appropriate analysis software or manually by microscopy.

Caption

Antibody

Capture /
Detection
antibody

Cytokine

Cytokine

T cell

Cytokine-
secreting
cell


Biotin

Biotin

Streptavidin

Streptavidin

Enzyme

Alkaline
phosphatase