The present invention discloses an electrochemical immunosensor (ECL). The ECL is configured for detecting Haptoglobin in biological samples. The immunosensor includes nanocomposite of gold nanoparticles, single-walled carbon nanotubes, quantum dots, and chitosan. This nanocomposite modified CNFs-SPE-interface could also be used for the ECL based detection of other biomarkers and biomolecules, such as Immunoglobulin A and dopamine.
The invention detects Haptoglobin in biological samples with electrochemiluminescene immunosensor