Electrochemical immunosensor for the determination of β-casein

  • Judith Molinari Unidad Técnica Nanomateriales, INTI-Procesos Superficiales, Instituto Nacional de Tecnología Industrial, C.C. 157, B1650WAB San Martín, Argentina
  • Carlos Moina Unidad Técnica Nanomateriales, INTI-Procesos Superficiales, Instituto Nacional de Tecnología Industrial, C.C. 157, B1650WAB San Martín, Argentina
  • Gabriel Ybarra Unidad Técnica Nanomateriales, INTI-Procesos Superficiales, Instituto Nacional de Tecnología Industrial, C.C. 157, B1650WAB San Martín, Argentina

Abstract

An amperometric biosensor for the quantification of food allergens based on an inhibitory immunoassay is presented. As a proof of concept, the experimental conditions were optimized for the detection of β-casein in the 0-10 ppm range. Eight electro­che­mi­cal cells were integrated into a small-sized portable potentiostat controlled by a smart­phone via Bluetooth communication. The determination of β-casein in eight different samples can be measured with the electrochemical biosensor, which has the potential to be modified for the detection of multiple allergens.

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Published
15-03-2015
Section
Electrochemical Science