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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

An electronic tongue based on conducting electrospun nanofibers for detecting tetracycline in milk samples

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Scagion, Vanessa P. ; Mercante, Luiza A. ; Sakamoto, Karine Y. ; Oliveira, Juliano E. ; Fonseca, Fernando J. ; Mattoso, Luiz H. C. ; Ferreira, Marcos D. ; Correa, Daniel S.
Total Authors: 8
Document type: Journal article
Source: RSC ADVANCES; v. 6, n. 105, p. 103740-103746, 2016.
Web of Science Citations: 6

The development of novel and portable chemical sensors aimed at the food industry is of prime importance for food safety issues, and nanomaterial science can greatly contribute to this task. In this context, a careful choice of the sensing material is essential for achieving high performance sensor arrays, such as those employed in nanostructured electronic tongues (e-tongues). In the current work, an impedimetric e-tongue based on gold interdigitated microelectrodes (IDEs) modified with polyamide 6/polyaniline (PA6/PANI) electrospun nanofibers was developed, characterized and used to detect tetracycline (TC) residue in fat and skimmed milk samples. By analyzing the electrical resistance data collected by the e-tongue, which were treated by Principal Component Analysis (PCA), the e-tongue was able to identify the presence of TC residues (from 1 to 300 ppb) in fat and skimmed milk samples. The results obtained demonstrate the ability of the approach of modifying IDEs with conducting electrospun nanofibers to be used as sensing units in the e-tongue, aiming to analyze complex matrices such as milk without any prior pre-treatment. (AU)

FAPESP's process: 14/16789-5 - Hybrid nanostructured materials based on conjugated polymers and metallic nanoparticles for sensor applications
Grantee:Daniel Souza Corrêa
Support type: Regular Research Grants
FAPESP's process: 12/23880-3 - Development of polymeric nanostructures as a sensor platform for diagnosis of bacteria causing mastitis
Grantee:Luiza Amim Mercante
Support type: Scholarships in Brazil - Post-Doctorate