Characterization of materials for sensing applications

Hydrogen is considered the future clean carrier of energy. Optical hydrogen sensor do not pose risk to generate sparks in an explosive hydrogen atmosphere. Thin films and alloys are characterized for Hydrogen sensing. Optical and structural properties are investigated. Optical sensor devices realization is the final goal.


Metal and metal/graphene chips for biosensing

Surface Plasmon Resonance (SPR) is a widely used technique to develop biosensor since it allows real-time and label-free detection of biomolecules with high sensitivity.  The most common way to excite surface plasmons is the Kretschmann configuration: the base of a high index prism is coated with a metal film, a TM-polarized light enters the prism and impinges on the prism-metal interface at an angle greater than the critical angle. Development of configuration in optical fibers is useful for in-line process controls. The metallic film usually consists of noble metals, typically gold and silver. The potentiality of the use of other materials, such as Palladium and Iridium, are investigated for  the so-called Inverted Surface Plasmon Resonance (ISPR). Use of graphene in biodevices is investigated. 

Surface Plasmon Resonance optical transducers

Development of a new device that allows two complementary measurements (SPR angular resolve and SPR imaging) on the same setup with no moving parts [Alain J. Corso, Sara Zuccon, Paola Zuppella, Maria G. Pelizzo, Flexible SPR system able to switch between Kretschmann and SPRi, Proc. SPIE 9506, Optical Sensors 2015, 95061D]. International patent application pending: Apparatus for SPR detection capable of switching between imaging and angular resolved spectroscopy, PCT/IB2015/058148



Gerlin, F., Zuppella, P., Corso, A. J., Nardello, M., Tessarolo, E., Bacco, D., & Pelizzo, M. G. (2016). Stability and extreme ultraviolet photo-reduction of graphene during CK edge NEXAFS characterization. Surface and Coatings Technology, 296, 211-215, (2016).

Cennamo, N., Zuppella, P., Bacco, D., Corso, A. J., Pelizzo, M. G., & Zeni, L. SPR sensor platform based on a novel metal bilayer applied on D–shaped plastic optical fibers for refractive index measurements in the range 1.38–1.42. IEEE Sensors Journal, 16(12), 4822-4827, (2016).

Cerea, Andrea, Denis Garoli, Pierfrancesco Zilio, Michele Dipalo, Eugenio Calandrini, Andrea Jacassi, Valeria Caprettini, Angelica Carrara, Maria G. Pelizzo, and Francesco De Angelis. "Modified three-dimensional nanoantennas for infrared hydrogen detection." Microelectronic Engineering (2016).

Paola Zuppella · Francesca Gerlin · Alain Jody Corso · Marco Nardello · Enrico Tessarolo · Davide Bacco · Daniele Scarpa · Alberto Andrighetto · Maria G. Pelizzo, Nd:YAG Laser Damage of Graphene–Nickel Interfaces, Lasers Manuf. Mater. Process. (2016) 3:131–139

P. Zuppella, E. Pasqualotto, S. Zuccon, F. Gerlin, A.J. Corso, M. Scaramuzza, A. De Toni, A. Paccagnella, and M.G. Pelizzo, “Palladium on Plastic Substrates for Plasmonic Devices”, Sensors 15(1), 1138–1147, 2015

Zuccon, Sara; Zuppella, Paola; Cristofani, Michele; Silvestrini, Simone; Corso, Alain; Maggini, Michele; Pelizzo, Maria G., Functional palladium metal film for plasmonic devices: an experimental proof, Journal of Optics 16 055001, 2014

P. Zuppella, S. Tosatto, A.J. Corso, S. Zuccon ,  M.G. Pelizzo, Graphene-noble metal bilayers for inverted surface plasmon resonance biosensors, J. Opt. 15(5), 055010, 2013

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