0
Special Section on Glass Photonics for Integrated Optics

Metal-clad optical waveguide fluorescence device for the detection of heavy metal ions

[+] Author Affiliations
Giancarlo Margheri

Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy

Emilia Giorgetti

Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy

Paolo Marsili

Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy

Angela Zoppi

Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy

Luisa Lascialfari

Department of Chemistry of the University of Florence, Via della Lastruccia 3/13, 50019 Sesto Fiorentino, Firenze, Italy

Stefano Cicchi

Department of Chemistry of the University of Florence, Via della Lastruccia 3/13, 50019 Sesto Fiorentino, Firenze, Italy

Opt. Eng. 53(7), 071816 (Mar 03, 2014). doi:10.1117/1.OE.53.7.071816
History: Received October 31, 2013; Revised January 24, 2014; Accepted January 27, 2014
Text Size: A A A

Abstract.  We developed Hg2+-sensing chips by decorating the external surface of metal-clad optical waveguides with a monolayer of Hg2+-sensitive fluorescent molecular probes. The emission properties of the original water-soluble form of the molecule were previously found to be selectively quenched in the presence of Hg2+ ions. The fabricated samples were tested with optical waveguide fluorescence spectroscopy by putting them in contact with a 5-μM water solution of Hg2+ ions and recording the emission spectra versus incubation time. The estimate of the limit of detection was 150 nM. A preliminary evaluation of the selectivity of the structure was also performed by using Cd2+ as possible interfering analytes.

Figures in this Article
© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Giancarlo Margheri ; Emilia Giorgetti ; Paolo Marsili ; Angela Zoppi ; Luisa Lascialfari, et al.
"Metal-clad optical waveguide fluorescence device for the detection of heavy metal ions", Opt. Eng. 53(7), 071816 (Mar 03, 2014). ; http://dx.doi.org/10.1117/1.OE.53.7.071816


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
 
Your Session has timed out. Please sign back in to continue.
Sign In to Access Full Content

Tables

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement


Buy this article ($18 for members, $25 for non-members).
Sign In