Integrating an electronic tongue in a lab-on-a-chip system

• Grant number: 08/06504-2
• Support Opportunities: Regular Research Grants
• Duration: March 01, 2009 - February 29, 2012
• Field of knowledge: Engineering - Materials and Metallurgical Engineering
• Principal Investigator: Antonio Riul Júnior
• Grantee: Antonio Riul Júnior
• Host Institution: Universidade Federal de São Carlos (UFSCAR). Campus de Sorocaba. Sorocaba , SP, Brazil

Abstract

The aim of this project is the fabrication of microchannels in different materials (glass, polymers, ...) and distinct configurations (series and/or parallel) to optimize an architecture that best aggregate the integration of the electronic tongue we are developing in the last couple of years in lab-on-a-chip devices. The final goal is the fabrication of a "tongue-on-a-chip" sensor, with nothing alike in the literature up to date. Having in mind the potential application of both systems, e-tongue and lab-on-a-chip, this project becomes an important key to the development of a new technology with strong commercial appeal here and abroad. As the fabrication of microchannels and microelectrodes needs techniques and equipments that we do not have at the moment at UFSCar Sorocaba, we will use somethimes the laboratories of the Brazilian Synchroton Light Laboratory (LNLS) throughout a specific project in this area (already approved = LMF 7472). An alternative to the microchannel fabrication is the use of a higher power laser that we intent to do in collaboration with Prof. Dr. Cleber R. Mendonça at the Physics Institute in Sao Carlos (USP). It is the first time microfluidics is applied in e-tongue devices, being necessary a thorough work to verify the best conditions involved in the microchannel fabrication, allowing its integration with interdigitated electrodes, which will further recovered with ultrathin films for signal acquisition. Besides the volume reduction in the analysed samples, minimizing chemical waste and amount of analysed materials, there will be also a decrease in time of analysis, as data acquisition will be get in flow measurements, which needs as well a detailed study envisaging future applications in several areas (clinical and biological, environmental, beverages, ...). (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DAIKUZONO, CRISTIANE M.; DANTAS, CLEBER A. R.; VOLPATI, DIOGO; CONSTANTINO, CARLOS J. L.; PIAZZETTA, MARIA H. O.; GOBBI, ANGELO L.; TAYLOR, DAVID M.; OLIVEIRA, JR., OSVALDO N.; RIUL, JR., ANTONIO. Microfluidic electronic tongue. SENSORS AND ACTUATORS B-CHEMICAL, v. 207, n. B, SI, p. 1129-1135, FEB 2015. (08/06504-2)