Next Article in Journal
New Approaches to the Integration of Navigation Systems for Autonomous Unmanned Vehicles (UAV)
Next Article in Special Issue
Multi-Parameter Sensing Device to Detect Liquid Layers Using Long-Period Fiber Gratings
Previous Article in Journal
Sensor Selection to Improve Estimates of Particulate Matter Concentration from a Low-Cost Network
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(9), 3009; https://doi.org/10.3390/s18093009

A Simple and Low-Cost Optical Fiber Intensity-Based Configuration for Perfluorinated Compounds in Water Solution

1
Department of Engineering, University of Campania Luigi Vanvitelli, 81031 Aversa, Italy
2
Copernico S.r.l., 33100 Udine, Italy
3
Instituto de Telecomunicações, 3810-193 Aveiro, Portugal
*
Author to whom correspondence should be addressed.
Received: 25 July 2018 / Revised: 5 September 2018 / Accepted: 6 September 2018 / Published: 8 September 2018
(This article belongs to the Special Issue Optical Fiber Sensors 2018–2019)
Full-Text   |   PDF [2851 KB, uploaded 8 September 2018]   |  

Abstract

We present a very simple approach for the detection of the Perfluorinated Alkylated Substances (PFAs) in water solution. Perfluorooctanesulfonate (PFOS) and Perfluorooctanoate (PFOA) are the most extensively investigated perfluoroalkyl and polyfluoroalkyl substances in water because human exposition can occur through different pathways, even if the dietary intake seems to be their main route of exposure. The developed sensor is based on a specific Molecularly Imprinted Polymer (MIP) receptor deposited on a simple D-shaped Plastic Optical Fiber (POF) platform. This novel chemical sensor has been characterized using a very simple and low-cost experimental setup based on an LED and two photodetectors. This optical sensor system is an alternative method to monitor the presence of contaminants with an MIP receptor, instead of a surface plasmon resonance (SPR) sensor in D-shaped POFs. For the sake of comparison, the results obtained exploiting the same MIP for PFAs on a classic SPR-POF sensor have been reported. The experimental results have shown that the actual limit of detection of this new configuration was about 0.5 ppb. It is similar to the one obtained by the configuration based on an SPR-POF with the same MIP receptor. View Full-Text
Keywords: plastic optical fibers (POFs); molecularly imprinted polymers (MIPs); PFOA (Perfluorooctanoate); PFAs (Perfluorinated Alkylated Substances); chemical sensors; optical fiber sensors plastic optical fibers (POFs); molecularly imprinted polymers (MIPs); PFOA (Perfluorooctanoate); PFAs (Perfluorinated Alkylated Substances); chemical sensors; optical fiber sensors
Figures

Figure 1a

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Cennamo, N.; D’Agostino, G.; Sequeira, F.; Mattiello, F.; Porto, G.; Biasiolo, A.; Nogueira, R.; Bilro, L.; Zeni, L. A Simple and Low-Cost Optical Fiber Intensity-Based Configuration for Perfluorinated Compounds in Water Solution. Sensors 2018, 18, 3009.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top