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Proceedings Paper

Microgel photonics and lab on fiber technology for advanced label-free fiber optic nanoprobes
Author(s): M. Giaquinto; A. Micco; A. Aliberti; A. Ricciardi; M. Ruvo; A. Cutolo; A. Cusano
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Paper Abstract

We experimentally demonstrate a novel optical fiber label free optrode platform resulting from the integration between two rapidly emerging technologies such as Lab-on-Fiber Technology (LOFT) and Microgel Photonics (MPs). The device consists of a microgel (MG) layer painted on a metallic slabs supporting plasmonic resonances, directly integrated on the optical fiber tip. A molecular binding event induces significant changes in the MG layer thickness (and consequently in its 'equivalent' refractive index) resulting in an evident wavelength shift of the resonant feature. As a case of study, glucose-responsive MGs have been synthesized by incorporating into the gel matrix boronic acid moieties, whose interaction with glucose rules the driving forces for gel swelling. Our results pave the way for new technological routes aimed to develop advanced label free fiber optic nanoprobes.

Paper Details

Date Published: 30 May 2016
PDF: 4 pages
Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 99161M (30 May 2016); doi: 10.1117/12.2236829
Show Author Affiliations
M. Giaquinto, Univ. of Sannio (Italy)
A. Micco, Univ. of Sannio (Italy)
A. Aliberti, Univ. of Sannio (Italy)
A. Ricciardi, Univ. of Sannio (Italy)
M. Ruvo, Institute of Biostructure and Bioimaging, NRC (Italy)
A. Cutolo, Univ. of Sannio (Italy)
A. Cusano, Univ. of Sannio (Italy)


Published in SPIE Proceedings Vol. 9916:
Sixth European Workshop on Optical Fibre Sensors
Elfed Lewis, Editor(s)

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