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

J. Pereira-Da-Silva; P. M. Zagalo; C. Magro; I. Pinto; P. A. Ribeiro; M. Raposo

doi:10.1109/ENBENG.2019.8692527

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

J. Pereira-Da-Silva, P. M. Zagalo, C. Magro, I. Pinto, P. A. Ribeiro, M. Raposo

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

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 language	English
Title of host publication	6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
ISBN (Electronic)	9781538685068
DOIs	https://doi.org/10.1109/ENBENG.2019.8692527
Publication status	Published - 15 Apr 2019
Event	6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Lisbon, Portugal Duration: 22 Feb 2019 → 23 Feb 2019

Conference

Conference	6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019
Country/Territory	Portugal
City	Lisbon
Period	22/02/19 → 23/02/19

Keywords

Adsorption
Impedance spectroscopy
PAH
PH
PVS
Thin-film
Triclosan

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/ENBENG.2019.8692527

Cite this

@inproceedings{6913edc64be34dc8a4fa30dac768f3a5,

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.; 6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 ; Conference date: 22-02-2019 Through 23-02-2019",

year = "2019",

month = apr,

day = "15",

doi = "10.1109/ENBENG.2019.8692527",

language = "English",

booktitle = "6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019 - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

}

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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

AN - SCOPUS:85065466631

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

PB - Institute of Electrical and Electronics Engineers (IEEE)

T2 - 6th IEEE Portuguese Meeting on Bioengineering, ENBENG 2019

Y2 - 22 February 2019 through 23 February 2019

ER -

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

Abstract

Conference

Keywords

UN SDGs

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