Projects per year
Abstract
Metallic nanostructures such as nanoantennas are capable of confining the energy of an incident radiation into volumes much smaller than the wavelength of incoming waves through localized surface plasmon resonance (LSPR). Here, we report on a strong enhancement of the vibrational signal from molecules adsorbed on metallic nanoantennas when those latter are excited at their LSPR frequencies. Because nanoantennas possess two plasmon modes with different directional profiles, it is likely possible to selectively probe the molecules adsorbed onto the nanoantenna side wall, on the nanoantenna top part or on the flat region of the substrate in-between antennas. This work gives promising perspectives to set-up a label-free vibrational biosensing platform with a multi-zones selectivity and a plasmon-enhanced sensitivity that could deserve diagnosis or surface molecular analysis.
Original language | English |
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Title of host publication | NANOCON 2013 - Conference Proceedings, 5th International Conference |
Pages | 497-502 |
Publication status | Published - 2013 |
Projects
- 1 Finished
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RAPARRAY: Conception d'un support de biopuce à protéines adapté à une méthode de détection sans marquage par spectroscopie non linéaire de génération de fréquence-somme (SFG)
Caudano, Y. (PI), LIS, D. (PI) & Cecchet, F. (PI)
1/10/09 → 31/03/14
Project: Research
Equipment
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Optics, Lasers and spectroscopy
Lepere, M. (Manager)
Technological Platform Optics, Lasers and spectroscopyFacility/equipment: Technological Platform
Activities
- 3 Participation in conference
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Third Annual Conference on Optical Nanospectroscopy
Cecchet, F. (Invited Speaker)
21 Mar 2016Activity: Participating in or organising an event types › Participation in conference
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Biointerfaces Symposium
Cecchet, F. (Invited Speaker)
12 May 2015Activity: Participating in or organising an event types › Participation in conference
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Action Nationale de Formation du CNRS en "Spectroscopie et Imagerie d’interfaces materiaux- molecules du vivant"
Cecchet, F. (Invited Speaker)
15 Oct 2014 → 17 Oct 2014Activity: Participating in or organising an event types › Participation in conference