A graphene-based electrochemical competitive immunosensor for the sensitive detection of okadaic acid in shellfish.

@article{Eissa2012AGE,
  title={A graphene-based electrochemical competitive immunosensor for the sensitive detection of okadaic acid in shellfish.},
  author={Shimaa Eissa and Mohammed Zourob},
  journal={Nanoscale},
  year={2012},
  volume={4 23},
  pages={7593-9}
}
A novel graphene-based voltammetric immunosensor for sensitive detection of okadaic acid (OA) was developed. A simple and efficient electrografting method was utilized to functionalize graphene-modified screen-printed carbon electrodes (GSPE) by the electrochemical reduction of in situ generated 4-carboxyphenyl diazonium salt in acidic aqueous solution. Next, the okadaic acid antibody was covalently immobilized on the carboxyphenyl modified graphene electrodes via carbodiimide chemistry. Square… CONTINUE READING

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