Abstract
The c-reactive protein (CRP) is one of the significant human blood serum markers for inflammatory processes. The serum presence of this hepatic approximately 115 kDa protein of five identical subunits accompanies several diseases (e.g. CVD, inflammatory bowel diseases) and is nowadays detected by high-sensitivity ELISA assays in blood serum. To enable CRP detection in other matrices, an SPR-based (surface plasmon resonance) immunosensor for the CRP detection has been established. A linear detection range of 2-5 microg CRP per ml was found, using two different antiCRP antibodies (monoclonal, IgG) for CRP trapment and detection. Furthermore, the kinetic antibody association and dissociation constants of one antibody (antiCRP, clone C2) could be determined.
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