The Biosensis CE Marked BDNF Rapid™ enzyme-linked immunosorbent assay (ELISA) Kit is a sandwich ELISA that allows the preferential quantification of mature BDNF in less than 3 hours. This kit consists of a pre-coated mouse monoclonal anti-BDNF capture antibody, a biotinylated anti-BDNF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3’,5,5’- tetramethylbenzidine, TMB) yields a coloured reaction product which is directly proportional to the concentration of BDNF present in samples and protein standards.

The BDNF ELISA Kit employs a recombinant human BDNF standard approved by the World Health Organization (WHO, www.nibsc.org). This kit is suitable to measure mature BDNF in human serum and citrate-treated plasma samples only. The antibodies used in this ELISA kit bind epitopes within the mature domain of the protein and therefore recognise the mature as well as the pro-form of BDNF. However, cross-reactivity to the full-length proBDNF protein is low.