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The role of film composition and nanostructuration on the polyphenol sensor performance

Departamento de Física, Faculdade de Ciências e Tecnologia, UNESP Univ. Estadual Paulista, Presidente Prudente, SP, Brazil, 19060-900.

Topical Section: Thin films, surfaces and interfaces

The recent advances in the supramolecular control in nanostructured films have improved the performance of organic-based devices. However, the effect of different supramolecular arrangement on the sensor or biosensor performance is poorly studied yet. In this paper, we show the role of the composition and nanostructuration of the films on the impedance and voltammetric-based sensor performance to catechol detection. The films here studied were composed by a perylene derivative (PTCD-NH2) and a metallic phthalocyanine (FePc), using Langmuir-Blodgett (LB) and physical vapor deposition (PVD) techniques. The deposition technique and intrinsic properties of compounds showed influence on electrical and electrocatalytic responses. The PVD PTCD-NH2 shows the best sensor performance to the detection of catechol. Quantification of catechol contents in mate tea samples was also evaluated, and the results showed good agreement compared with Folin-Ciocalteu standard method for polyphenol detection.
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Keywords nanostructuration; PVD films; LB films; phthalocyanine; perylene, polyphenol sensor

Citation: Cibely Silva Martin, Mateus Dassie Maximino, Matheus Santos Pereira, Clarissa de Almeida Olivati, Priscila Alessio. The role of film composition and nanostructuration on the polyphenol sensor performance. AIMS Materials Science, 2017, 4(1): 27-42. doi: 10.3934/matersci.2017.1.27

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Copyright Info: © 2017, Priscila Alessio, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licese (http://creativecommons.org/licenses/by/4.0)

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