2D photonic crystal membranes for optical biosensors

Author

Zecca, D. ; Qualtieri, A. ; Stomeo, T. ; De Vittorio, M. ; Magno, G. ; Grande, M. ; Petruzzelli, V. ; D´Orazio, A. ; Prieto-Simon, B. ; Voelcker, N.H.

Author_Institution

Center for Bio-Mol. Nanotechnol., Ist. Italiano di Tecnol. (IIT), Lecce, Italy

fYear

2014

fDate

12-14 May 2014

Firstpage

1

Lastpage

3

Abstract

Biosensors are devices able to reduce costs and time in biological assays. They are efficient and useful tools also in biochemical assays, providing high performance in sensitivity and selectivity of measurements. In this work, we developed a label-free biosensor based on a two-dimensional photonic crystal patterned on a large area silicon nitride membrane that operates in the visible spectrum for the detection of proteins. The biosensor has been preliminarily tested in solutions of different refractive index, showing as expected a shift of the resonance in the reflection spectrum.

Keywords

biosensors; membranes; molecular biophysics; optical sensors; photonic crystals; proteins; refractive index; silicon compounds; visible spectra; 2D photonic crystal membranes; Si₃N₄; biochemical assays; biological assays; label-free biosensor; large area silicon nitride membrane; measurement selectivity; measurement sensitivity; optical biosensors; preliminary solution testing; protein detection; reflection spectru; refractive index; resonance shift; two-dimensional patterned photonic crystal; visible spectrum; Biomedical optical imaging; Integrated optics; Optical reflection; Optical sensors; Photonics; Biosensor; label-free; photonic crystal;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Technologies, 2014 Fotonica AEIT Italian Conference on

Conference_Location

Naples

Print_ISBN

978-8-8872-3718-4

Type

conf

DOI

10.1109/Fotonica.2014.6843901

Filename

6843901