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An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water †
Highly sensitive plasmonic optical fiber platforms combined with receptors have been recently used to obtain selective sensors. A low-cost configuration can be obtained exploiting a D-shaped plastic optical fiber covered with a multilayer sensing surface. The multilayer consists of a gold film, func...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6928843/ https://www.ncbi.nlm.nih.gov/pubmed/31795303 http://dx.doi.org/10.3390/s19235246 |
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author | Pesavento, Maria Profumo, Antonella Merli, Daniele Cucca, Lucia Zeni, Luigi Cennamo, Nunzio |
author_facet | Pesavento, Maria Profumo, Antonella Merli, Daniele Cucca, Lucia Zeni, Luigi Cennamo, Nunzio |
author_sort | Pesavento, Maria |
collection | PubMed |
description | Highly sensitive plasmonic optical fiber platforms combined with receptors have been recently used to obtain selective sensors. A low-cost configuration can be obtained exploiting a D-shaped plastic optical fiber covered with a multilayer sensing surface. The multilayer consists of a gold film, functionalized with a specific receptor, where the surface plasmon resonance (SPR) occurs. The signal is produced by the refractive index variation occurring as a consequence of the receptor-to analyte binding. In this work, a selective sensor for copper(II) detection in drinking water, exploiting a self-assembled monolayer (SAM) of d,l-penicillamine as the sensing layer, has been developed and tested. Different concentrations of copper(II) in NaCl 0.1 M solutions at different pH values and in a real matrix (drinking water) have been considered. The results show that the sensor is able to sense copper(II) at concentrations ranging from 4 × 10(−6) M to 2 × 10(−4) M. The use of this optical chemical sensor is a very attractive perspective for fast, in situ and low-cost detection of Cu(II) in drinking water for human health concerns. Furthermore, the possibility of remote control is feasible as well, because optical fibers are employed. |
format | Online Article Text |
id | pubmed-6928843 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-69288432019-12-26 An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water † Pesavento, Maria Profumo, Antonella Merli, Daniele Cucca, Lucia Zeni, Luigi Cennamo, Nunzio Sensors (Basel) Article Highly sensitive plasmonic optical fiber platforms combined with receptors have been recently used to obtain selective sensors. A low-cost configuration can be obtained exploiting a D-shaped plastic optical fiber covered with a multilayer sensing surface. The multilayer consists of a gold film, functionalized with a specific receptor, where the surface plasmon resonance (SPR) occurs. The signal is produced by the refractive index variation occurring as a consequence of the receptor-to analyte binding. In this work, a selective sensor for copper(II) detection in drinking water, exploiting a self-assembled monolayer (SAM) of d,l-penicillamine as the sensing layer, has been developed and tested. Different concentrations of copper(II) in NaCl 0.1 M solutions at different pH values and in a real matrix (drinking water) have been considered. The results show that the sensor is able to sense copper(II) at concentrations ranging from 4 × 10(−6) M to 2 × 10(−4) M. The use of this optical chemical sensor is a very attractive perspective for fast, in situ and low-cost detection of Cu(II) in drinking water for human health concerns. Furthermore, the possibility of remote control is feasible as well, because optical fibers are employed. MDPI 2019-11-28 /pmc/articles/PMC6928843/ /pubmed/31795303 http://dx.doi.org/10.3390/s19235246 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Pesavento, Maria Profumo, Antonella Merli, Daniele Cucca, Lucia Zeni, Luigi Cennamo, Nunzio An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water † |
title | An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water † |
title_full | An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water † |
title_fullStr | An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water † |
title_full_unstemmed | An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water † |
title_short | An Optical Fiber Chemical Sensor for the Detection of Copper(II) in Drinking Water † |
title_sort | optical fiber chemical sensor for the detection of copper(ii) in drinking water † |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6928843/ https://www.ncbi.nlm.nih.gov/pubmed/31795303 http://dx.doi.org/10.3390/s19235246 |
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