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Development of analytical tools based on electronic tongues for simultaneous detection of bacterial threats

Grant number: 15/01770-0
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): June 01, 2015
Effective date (End): February 28, 2019
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Osvaldo Novais de Oliveira Junior
Grantee:Deivy Wilson Masso
Home Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
Associated research grant:13/14262-7 - Nanostructured films from biologically-relevant materials, AP.TEM


The identification of bacteria in food, water and biological samples is made through complicated or lengthy procedures, with confirmation of the bacteria presence normally arriving late. In this study we shall develop advanced analytical methods based on the electronic tongues (ET) paradigm for detecting bacterial threats. Use will be made of field-effect transistors and impedance spectroscopy with sensing units obtained from nanostructured membranes fabricated with self-assembled monolayers and molecular imprinted polymers (MIPs). The aim is reach an integrated approach combining advantages of ETs with sensor arrays, MIP sensors (high selectivity, chemical stability, low cost and ease of preparation), and field-effect transistors (possibility of integration in microchip and other electronic devices). The proposal also includes development of portables devices for real-time monitoring of bacteria threats through recognition of enzymes, antibodies, proteins, metabolites and toxins. (AU)

News published in Agência FAPESP Newsletter about the scholarship:
Wearable sensors printed on natural materials analyze substances present in sweat 
Biosensor uses molecule derived from bee venom to detect bacteria in food and drink 

Scientific publications (4)
(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)
SILVA, ROBSON R.; RAYMUNDO-PEREIRA, PAULO A.; CAMPOS, ANDERSON M.; WILSON, DEIVY; OTONI, CAIO G.; BARUD, HERNANE S.; COSTA, CARLOS A. R.; DOMENEGUETTI, RAFAEL R.; BALOGH, DEBORA T.; RIBEIRO, SIDNEY J. L.; OLIVEIRA JR, OSVALDO N. Microbial nanocellulose adherent to human skin used in electrochemical sensors to detect metal ions and biomarkers in sweat. Talanta, v. 218, OCT 1 2020. Web of Science Citations: 1.
IBANEZ-REDIN, GISELA; FURUTA, ROBERTO H. M.; WILSON, DEIVY; SHIMIZU, FLAVIO M.; MATERON, ELSA M.; REBOLHO BATISTA ARANTES, LIDIA MARIA; MELENDEZ, MATIAS E.; CARVALHO, ANDRE L.; REIS, RUI MANUEL; CHAUR, MANUEL N.; GONCALVES, DEBORA; OLIVEIRA, JR., OSVALDO N. Screen-printed interdigitated electrodes modified with nanostructured carbon nano-onion films for detecting the cancer biomarker CA19-9. Materials Science & Engineering C-Materials for Biological Applications, v. 99, p. 1502-1508, JUN 2019. Web of Science Citations: 4.
WILSON, DEIVY; MATERON, ELSA M.; IBANEZ-REDIN, GISELA; FARIA, RONALDO C.; CORREA, DANIEL S.; OLIVEIRA, JR., OSVALDO N. Electrical detection of pathogenic bacteria in food samples using information visualization methods with a sensor based on magnetic nanoparticles functionalized with antimicrobial peptides. Talanta, v. 194, p. 611-618, MAR 1 2019. Web of Science Citations: 2.
IBANEZ-REDIN, G.; WILSON, D.; GONCALVES, D.; OLIVEIRA, JR., O. N. Low-cost screen-printed electrodes based on electrochemically reduced graphene oxide-carbon black nanocomposites for dopamine, epinephrine and paracetamol detection. Journal of Colloid and Interface Science, v. 515, p. 101-108, APR 1 2018. Web of Science Citations: 27.

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