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Development of intelligent devices (electronic noses and tongues) using electrochemical, colorimetric and mass measurements aiming to the discrimination of forensic and food samples

Grant number: 12/12106-5
Support type:Regular Research Grants
Duration: September 01, 2012 - February 28, 2015
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Thiago Regis Longo Cesar da Paixão
Grantee:Thiago Regis Longo Cesar da Paixão
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated grant(s):14/50792-3 - Development and characterization of molecularly imprinted polymer-based sensor for biomarker detection, AP.R SPRINT
13/50751-2 - Development of microneedie array (microeletronic tongue) for quantification and discrimination of hormones, AP.R


Currently the development of smart sensors, such as electronic noses and tongues, has gained importance in Analytical Chemistry and it is attracting great interest from several companies in the food, pharmaceutical and environmental sectors. However, as a recent area of research there is much to be done regarding the development of new sensors and combination of different techniques to extract information aiming to discriminate different samples using chemometric tools. In this context, this project aims to develop new electronic noses and tongues using information extracted from different instrumental techniques: electrochemical, colorimetric and mass (quartz crystal microbalance) to discriminate forensic and food samples. To this end, electronic tongues and noses will be develop always taking into account that the methodology is easily spread, reproducible and inexpensive, such as the construction of intelligent devices using paper for the colorimetric detection. (AU)

Articles published in Agência FAPESP Newsletter about the research grant
Researchers develop paper sensors to detect explosives  

Scientific publications (9)
(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)
SALLES, MAIARA O.; ARAUJO, WILLIAM R.; PAIXAO, THIAGO R. L. C. Development of a Molecularly Imprinted Modified Electrode to Evaluate Phenacetin Based on the Preconcentration of Acetaminophen. Journal of the Brazilian Chemical Society, v. 27, n. 1, p. 54-61, JAN 2016. Web of Science Citations: 6.
DE ARAUJO, WILLIAM R.; MALDANER, ADRIANO O.; COSTA, JOSE L.; PAIXAO, THIAGO R. L. C. Development of an electroanalytical method for the quantification of aminopyrine in seized cocaine samples. Microchemical Journal, v. 121, p. 213-218, JUL 2015. Web of Science Citations: 7.
GUIMARAES SELVA, THIAGO MATHEUS; DE ARAUJO, WILLIAM REIS; LONGO CESAR DA PAIXAO, THIAGO REGIS. Non-Invasive Salivary Electrochemical Quantification of Paraquat Poisoning Using Boron Doped Diamond Electrode. Electroanalysis, v. 27, n. 7, p. 1642-1648, JUL 2015. Web of Science Citations: 7.
BUENO, LIGIA; MELONI, GABRIEL N.; REDDY, SUBRAYAL M.; PAIXAO, THIAGO R. L. C. Use of plastic-based analytical device, smartphone and chemometric tools to discriminate amines. RSC ADVANCES, v. 5, n. 26, p. 20148-20154, 2015. Web of Science Citations: 15.
BUENO, LIGIA; EL-SHARIF, HAZIM F.; SALLES, MAIARA O.; BOEHM, RYAN D.; NARAYAN, ROGER J.; PAIXAO, THIAGO R. L. C.; REDDY, SUBRAYAL M. MIP-based electrochemical protein profiling. SENSORS AND ACTUATORS B-CHEMICAL, v. 204, p. 88-95, DEC 1 2014. Web of Science Citations: 13.
DE ARAUJO, W. R.; PAIXAO, T. R. L. C. Fabrication of disposable electrochemical devices using silver ink and office paper. ANALYST, v. 139, n. 11, p. 2742-2747, 2014. Web of Science Citations: 35.
SALLES, M. O.; MELONI, G. N.; DE ARAUJO, W. R.; PAIXAO, T. R. L. C. Explosive colorimetric discrimination using a smartphone, paper device and chemometrical approach. ANALYTICAL METHODS, v. 6, n. 7, p. 2047-2052, 2014. Web of Science Citations: 50.
DA SILVA, IRANALDO S.; DE ARAUJO, WILLIAM R.; PAIXAO, THIAGO R. L. C.; ANGNES, LUCIO. Direct nitrate sensing in water using an array of copper-microelectrodes from flat flexible cables. SENSORS AND ACTUATORS B-CHEMICAL, v. 188, p. 94-98, NOV 2013. Web of Science Citations: 18.
JUNQUEIRA, JOAO R. C.; DE ARAUJO, WILLIAM R.; SALLES, MAIARA O.; PAIXAO, THIAGO R. L. C. Flow injection analysis of picric acid explosive using a copper electrode as electrochemical detector. Talanta, v. 104, p. 162-168, JAN 30 2013. Web of Science Citations: 32.

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