Abstract

Given the vital role of water in life it is paramount to thrive and succeed in areas that look to clean and prevent further contamination in water bodies. Triclosan (TCS) is present in most of our day-to-day products and if left unchecked it can lead to long-term significant problems due to its many inauspicious effects in both human and animal health. Thus arose the need to develop sensors to detect and possibly remove TCS for aqueous solutions. This work was rooted on this premise and sensors based on LbL polyectrolyte thin-films were developed, such as poly(allylamine hydrochloride) (PAH) and poly(vinylsulfonic acid, sodium salt) (PVS), namely (PAH/PVS) 10 and (PAH/PVS)/PAH 10 . The goal of this work was to analyze the amount of TCS adsorbed onto reused (PAH/PVS) 10 and (PAH/PVS)/PAH 10 LbL thin-films when immersed in TCS aqueous solutions with decreasing pH. It was demonstrated that sensors with an outer layer of PAH led to a significantly better TCS molecules adsorption (removal). Additionally, sensors composed of (PAH/PVS) 10 presented higher sensibility in discriminating TCS solutions with concentrations between 10 -5 M and 10 -8 M, using impedance spectroscopy.

Original languageEnglish
Title of host publication6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538685068
DOIs
Publication statusPublished - 15 Apr 2019
Event6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Lisbon, Portugal
Duration: 22 Feb 201923 Feb 2019

Conference

Conference6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019
CountryPortugal
CityLisbon
Period22/02/1923/02/19

Fingerprint

Triclosan
Polycyclic aromatic hydrocarbons
Adsorption
Thin films
Sensors
Water
Animals
Contamination
Salts
Sodium
Health
Spectroscopy

Keywords

  • Adsorption
  • Impedance spectroscopy
  • PAH
  • PH
  • PVS
  • Thin-film
  • Triclosan

Cite this

Pereira-Da-Silva, J., Zagalo, P. M., Magro, C., Pinto, I., Ribeiro, P. A., & Raposo, M. (2019). Detection and adsorption of Triclosan on sensors based on PAH/PVS thin-films. In 6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings [8692527] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ENBENG.2019.8692527
Pereira-Da-Silva, J. ; Zagalo, P. M. ; Magro, C. ; Pinto, I. ; Ribeiro, P. A. ; Raposo, M. / Detection and adsorption of Triclosan on sensors based on PAH/PVS thin-films. 6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019.
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title = "Detection and adsorption of Triclosan on sensors based on PAH/PVS thin-films",
abstract = "Given the vital role of water in life it is paramount to thrive and succeed in areas that look to clean and prevent further contamination in water bodies. Triclosan (TCS) is present in most of our day-to-day products and if left unchecked it can lead to long-term significant problems due to its many inauspicious effects in both human and animal health. Thus arose the need to develop sensors to detect and possibly remove TCS for aqueous solutions. This work was rooted on this premise and sensors based on LbL polyectrolyte thin-films were developed, such as poly(allylamine hydrochloride) (PAH) and poly(vinylsulfonic acid, sodium salt) (PVS), namely (PAH/PVS) 10 and (PAH/PVS)/PAH 10 . The goal of this work was to analyze the amount of TCS adsorbed onto reused (PAH/PVS) 10 and (PAH/PVS)/PAH 10 LbL thin-films when immersed in TCS aqueous solutions with decreasing pH. It was demonstrated that sensors with an outer layer of PAH led to a significantly better TCS molecules adsorption (removal). Additionally, sensors composed of (PAH/PVS) 10 presented higher sensibility in discriminating TCS solutions with concentrations between 10 -5 M and 10 -8 M, using impedance spectroscopy.",
keywords = "Adsorption, Impedance spectroscopy, PAH, PH, PVS, Thin-film, Triclosan",
author = "J. Pereira-Da-Silva and Zagalo, {P. M.} and C. Magro and I. Pinto and Ribeiro, {P. A.} and M. Raposo",
note = "info:eu-repo/grantAgreement/FCT/5876/147412/PT# The authors acknowledge the financial support from FEDER, through Programa Operacional Factores de Competitividade—COMPETE and Fundac¸{\~a}o para a Ci{\^e}ncia e a Tecnologia—FCT, by the project PTDC/FIS-NAN/0909/2014 and for the Portuguese research Grant No. PEst-OE/FIS/UI0068/2011 and UID/FIS/00068/2013. J. Pereira-da-Silva and P.M. Zagalo acknowledge their fellowships PD/BD/142768/2018, PD/BD/142767/2018 from RABBIT Doctoral Programme, respectively. C. Magro acknowledge Fundac¸{\~a}o para a Ci{\^e}ncia e a Tecnologia for her PhD fellowship SFRH/BD/114674/2016.",
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Pereira-Da-Silva, J, Zagalo, PM, Magro, C, Pinto, I, Ribeiro, PA & Raposo, M 2019, Detection and adsorption of Triclosan on sensors based on PAH/PVS thin-films. in 6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings., 8692527, Institute of Electrical and Electronics Engineers Inc., 6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019, Lisbon, Portugal, 22/02/19. https://doi.org/10.1109/ENBENG.2019.8692527

Detection and adsorption of Triclosan on sensors based on PAH/PVS thin-films. / Pereira-Da-Silva, J.; Zagalo, P. M.; Magro, C.; Pinto, I.; Ribeiro, P. A.; Raposo, M.

6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. 8692527.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Detection and adsorption of Triclosan on sensors based on PAH/PVS thin-films

AU - Pereira-Da-Silva, J.

AU - Zagalo, P. M.

AU - Magro, C.

AU - Pinto, I.

AU - Ribeiro, P. A.

AU - Raposo, M.

N1 - info:eu-repo/grantAgreement/FCT/5876/147412/PT# The authors acknowledge the financial support from FEDER, through Programa Operacional Factores de Competitividade—COMPETE and Fundac¸ão para a Ciência e a Tecnologia—FCT, by the project PTDC/FIS-NAN/0909/2014 and for the Portuguese research Grant No. PEst-OE/FIS/UI0068/2011 and UID/FIS/00068/2013. J. Pereira-da-Silva and P.M. Zagalo acknowledge their fellowships PD/BD/142768/2018, PD/BD/142767/2018 from RABBIT Doctoral Programme, respectively. C. Magro acknowledge Fundac¸ão para a Ciência e a Tecnologia for her PhD fellowship SFRH/BD/114674/2016.

PY - 2019/4/15

Y1 - 2019/4/15

N2 - Given the vital role of water in life it is paramount to thrive and succeed in areas that look to clean and prevent further contamination in water bodies. Triclosan (TCS) is present in most of our day-to-day products and if left unchecked it can lead to long-term significant problems due to its many inauspicious effects in both human and animal health. Thus arose the need to develop sensors to detect and possibly remove TCS for aqueous solutions. This work was rooted on this premise and sensors based on LbL polyectrolyte thin-films were developed, such as poly(allylamine hydrochloride) (PAH) and poly(vinylsulfonic acid, sodium salt) (PVS), namely (PAH/PVS) 10 and (PAH/PVS)/PAH 10 . The goal of this work was to analyze the amount of TCS adsorbed onto reused (PAH/PVS) 10 and (PAH/PVS)/PAH 10 LbL thin-films when immersed in TCS aqueous solutions with decreasing pH. It was demonstrated that sensors with an outer layer of PAH led to a significantly better TCS molecules adsorption (removal). Additionally, sensors composed of (PAH/PVS) 10 presented higher sensibility in discriminating TCS solutions with concentrations between 10 -5 M and 10 -8 M, using impedance spectroscopy.

AB - Given the vital role of water in life it is paramount to thrive and succeed in areas that look to clean and prevent further contamination in water bodies. Triclosan (TCS) is present in most of our day-to-day products and if left unchecked it can lead to long-term significant problems due to its many inauspicious effects in both human and animal health. Thus arose the need to develop sensors to detect and possibly remove TCS for aqueous solutions. This work was rooted on this premise and sensors based on LbL polyectrolyte thin-films were developed, such as poly(allylamine hydrochloride) (PAH) and poly(vinylsulfonic acid, sodium salt) (PVS), namely (PAH/PVS) 10 and (PAH/PVS)/PAH 10 . The goal of this work was to analyze the amount of TCS adsorbed onto reused (PAH/PVS) 10 and (PAH/PVS)/PAH 10 LbL thin-films when immersed in TCS aqueous solutions with decreasing pH. It was demonstrated that sensors with an outer layer of PAH led to a significantly better TCS molecules adsorption (removal). Additionally, sensors composed of (PAH/PVS) 10 presented higher sensibility in discriminating TCS solutions with concentrations between 10 -5 M and 10 -8 M, using impedance spectroscopy.

KW - Adsorption

KW - Impedance spectroscopy

KW - PAH

KW - PH

KW - PVS

KW - Thin-film

KW - Triclosan

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U2 - 10.1109/ENBENG.2019.8692527

DO - 10.1109/ENBENG.2019.8692527

M3 - Conference contribution

BT - 6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings

PB - Institute of Electrical and Electronics Engineers Inc.

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Pereira-Da-Silva J, Zagalo PM, Magro C, Pinto I, Ribeiro PA, Raposo M. Detection and adsorption of Triclosan on sensors based on PAH/PVS thin-films. In 6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. 8692527 https://doi.org/10.1109/ENBENG.2019.8692527