Issue 5, 2011
From the journal:

Analyst

Quantitative SERS sensors for environmental analysis of naphthalene

O. Péron,ab   E. Rinnert,*a   T. Toury,b   M. Lamy de la Chapellec  and  C. Compèrea  

* Corresponding authors

a IFREMER, Service Interfaces et Capteurs, Département Recherches et Développements Technologiques, BP70, 29280 Plouzané, France
E-mail: Emmanuel.Rinnert@ifremer.fr
Fax: +33 (0)2-98-22-45-35
Tel: +33 (0)2-98-22-41-61

b ICD – LNIO – UMR CNRS 6279, Université de Technologie de Troyes, 12 rue Marie Curie, 10010 Troyes, France

c Laboratoire CSPBAT (FRE 3043), UFR SMBH, Université Paris XIII, 74 rue Marcel Cachin, 93017 Bobigny, France

Abstract

In the investigation of chemical pollutants, such as PAHs (Polycyclic Aromatic Hydrocarbons) at low concentration in aqueous medium, Surface-Enhanced Raman Scattering (SERS) stands for an alternative to the inherent low cross-section of normal Raman scattering. Indeed, SERS is a very sensitive spectroscopic technique due to the excitation of the surface plasmon modes of the nanostructured metallic film. The surface of quartz substrates was coated with a hydrophobic film obtained by silanization and subsequently reacted with polystyrene (PS) beads coated with gold nanoparticles. The hydrophobic surface of the SERS substrates pre-concentrates non-polar molecules such as naphthalene. Under laser excitation, the SERS-active substrates allow the detection and the identification of the target molecules localized close to the gold nanoparticles. The morphology of the SERS substrates based on polystyrene beads surrounded by gold nanoparticles was characterized by scanning electron microscopy (SEM). Furthermore, the Raman fingerprint of the polystyrene stands for an internal spectral reference. To this extent, an innovative method to detect and to quantify organic molecules, as naphthalene in the range of 1 to 20 ppm, in aqueous media was carried out. Such SERS-active substrates tend towards an application as quantitative SERS sensors for the environmental analysis of naphthalene.

Graphical abstract: Quantitative SERS sensors for environmental analysis of naphthalene

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Article information

DOI
https://doi.org/10.1039/C0AN00797H
Article type
Paper
Submitted
14 Oct 2010
Accepted
24 Nov 2010
First published
17 Dec 2010

Analyst, 2011,136, 1018-1022

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Quantitative SERS sensors for environmental analysis of naphthalene

O. Péron, E. Rinnert, T. Toury, M. Lamy de la Chapelle and C. Compère, Analyst, 2011, 136, 1018 DOI: 10.1039/C0AN00797H

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