In the course of a microfluidic e-tongue
C. A. R. Dantas1,2, M. S. Laranjeira2, M. H. O. Piazzetta3, A. L. Gobbi3 and A. Riul Jr2
DFQB, Universidade Estadual Paulista, Campus Presidente Prudente, SP, Brazil
Universidade Federal de São Carlos, Campus Sorocaba, SP, Brazil
LMF, Laboratório Nacional de Luz Síncroton, Campinas, SP, Brazil
We explore here the best results acquired in the last couple of years for the integration of an
electronic tongue [1] in lab-on-a-chip [2] devices. It is the first time microfluidics is applied
in e-tongue devices. A detailed work has being done to verify the best conditions involved in
the microchannel fabrication, their integration with interdigitated electrodes (IDEs) and
further recover of the IDEs with ultrathin films for signal acquisition. This integration
becomes an important key to the development of a new technology with strong commercial
appeal, besides the volume reduction in the analysis, minimizing chemical waste and a
decrease in the time of analysis, as data acquisition is get in flow measurements.
Keywords: electronic tongue, lab-on-a-chip, microfluidic
Work supported by FAPESP, CNPq, LNLS and INEO.
[1] A. Riul Jr., A.M.G. Soto, S.V. Mello, S. Bone, D.M. Taylor, L.H.C. Mattoso, Synth. Met.
132, 109 (2003).
[2] G.M. Whitesides, Nature 442, 368 (2006).
Corresponding author: [email protected], UFSCar – Campus Sorocaba, Rodovia João Leme
dos Santos, km 110, Sorocaba/SP, Brasil, CEP 18052–780.

In the course of a microfluidic e-tongue