Triclosan Detection in Aqueous Environmental Matrices by Thin-Films Sensors

Cátia Magro; Paulo Morgado Zagalo; João Pereira-da-Silva; Eduardo Pires Mateus; Alexandra B. Ribeiro; Paulo António Ribeiro; Maria Raposo

doi:10.3390/proceedings2019015024

Triclosan Detection in Aqueous Environmental Matrices by Thin-Films Sensors

Cátia Magro, Paulo Morgado Zagalo, João Pereira-da-Silva, Eduardo Pires Mateus, Alexandra B. Ribeiro, Paulo António Ribeiro, Maria Raposo

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Abstract

Triclosan (TCS), a bacteriostatic detected in water bodies, have inauspicious effects in human and biota. Consequently, there is a critical need of monitoring these type of compounds in aqueous matrices. In this sense, sensors, based on polyethyleneimine and polysodium 4-styrenesulfonate layer-by-layer thin-films adsorbed on supports with gold interdigitated electrodes deposited, were developed. The aim was analyze the sensitivity of discrimination of TCS (10−15 M to 10−5 M) in deionized water, Luso® and in an effluent, by measuring the impedance spectra. LbL films can distinguish TCS concentrations in EF, while in LW was achieved an acceptable sensibility when interdigitated electrodes without films were used.

Original language	English
Number of pages	5
Journal	Proceedings
Volume	15
Issue number	1
DOIs	https://doi.org/10.3390/proceedings2019015024
Publication status	Published - 15 Jul 2019

Keywords

triclosan monitoring
thin-films interdigitated sensors
impedance spectroscopy

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Triclosan Detection in Aqueous EnvironmentalFinal published version, 538 KBLicence: CC BY

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title = "Triclosan Detection in Aqueous Environmental Matrices by Thin-Films Sensors",

abstract = "Triclosan (TCS), a bacteriostatic detected in water bodies, have inauspicious effects in human and biota. Consequently, there is a critical need of monitoring these type of compounds in aqueous matrices. In this sense, sensors, based on polyethyleneimine and polysodium 4-styrenesulfonate layer-by-layer thin-films adsorbed on supports with gold interdigitated electrodes deposited, were developed. The aim was analyze the sensitivity of discrimination of TCS (10−15 M to 10−5 M) in deionized water, Luso{\textregistered} and in an effluent, by measuring the impedance spectra. LbL films can distinguish TCS concentrations in EF, while in LW was achieved an acceptable sensibility when interdigitated electrodes without films were used.",

keywords = "triclosan monitoring, thin-films interdigitated sensors, impedance spectroscopy",

author = "C{\'a}tia Magro and Zagalo, {Paulo Morgado} and Jo{\~a}o Pereira-da-Silva and Mateus, {Eduardo Pires} and Ribeiro, {Alexandra B.} and Ribeiro, {Paulo Ant{\'o}nio} and Maria Raposo",

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TY - JOUR

T1 - Triclosan Detection in Aqueous Environmental Matrices by Thin-Films Sensors

AU - Magro, Cátia

AU - Zagalo, Paulo Morgado

AU - Pereira-da-Silva, João

AU - Mateus, Eduardo Pires

AU - Ribeiro, Alexandra B.

AU - Ribeiro, Paulo António

AU - Raposo, Maria

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Y1 - 2019/7/15

N2 - Triclosan (TCS), a bacteriostatic detected in water bodies, have inauspicious effects in human and biota. Consequently, there is a critical need of monitoring these type of compounds in aqueous matrices. In this sense, sensors, based on polyethyleneimine and polysodium 4-styrenesulfonate layer-by-layer thin-films adsorbed on supports with gold interdigitated electrodes deposited, were developed. The aim was analyze the sensitivity of discrimination of TCS (10−15 M to 10−5 M) in deionized water, Luso® and in an effluent, by measuring the impedance spectra. LbL films can distinguish TCS concentrations in EF, while in LW was achieved an acceptable sensibility when interdigitated electrodes without films were used.

AB - Triclosan (TCS), a bacteriostatic detected in water bodies, have inauspicious effects in human and biota. Consequently, there is a critical need of monitoring these type of compounds in aqueous matrices. In this sense, sensors, based on polyethyleneimine and polysodium 4-styrenesulfonate layer-by-layer thin-films adsorbed on supports with gold interdigitated electrodes deposited, were developed. The aim was analyze the sensitivity of discrimination of TCS (10−15 M to 10−5 M) in deionized water, Luso® and in an effluent, by measuring the impedance spectra. LbL films can distinguish TCS concentrations in EF, while in LW was achieved an acceptable sensibility when interdigitated electrodes without films were used.

KW - triclosan monitoring

KW - thin-films interdigitated sensors

KW - impedance spectroscopy

U2 - 10.3390/proceedings2019015024

DO - 10.3390/proceedings2019015024

M3 - Conference article

VL - 15

JO - Proceedings

JF - Proceedings

IS - 1

ER -

Triclosan Detection in Aqueous Environmental Matrices by Thin-Films Sensors

Abstract

Keywords

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