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Issue 11, 2012
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Contactless conductivity biosensor in microchip containing folic acid as bioreceptor

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Abstract

We report a glass/PDMS-based microfluidic biosensor that integrates contactless conductivity transduction and folic acid, a target for tumor biomarker, as a bioreceptor. The device presents relevant advantages such as direct determination—dismiss the use of redox mediators as in faradaic electrochemical techniques—and the absence of the known drawbacks related to the electrode-solution interface. Characterizations of the functionalization processes and chemical sensor are described in this communication.

Graphical abstract: Contactless conductivity biosensor in microchip containing folic acid as bioreceptor

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Publication details

The article was received on 13 Feb 2012, accepted on 17 Apr 2012 and first published on 18 Apr 2012


Article type: Communication
DOI: 10.1039/C2LC40157F
Citation: Lab Chip, 2012,12, 1963-1966
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    Contactless conductivity biosensor in microchip containing folic acid as bioreceptor

    R. S. Lima, M. H. O. Piazzetta, A. L. Gobbi, U. P. Rodrigues-Filho, P. A. P. Nascente, W. K. T. Coltro and E. Carrilho, Lab Chip, 2012, 12, 1963
    DOI: 10.1039/C2LC40157F

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