No full text
Article (Scientific journals)
Ultrasensitive and label-free molecular-level detection enabled by light phase control in magnetoplasmonic nanoantennas
Maccaferri, Nicolò; Gregorczyk, Keith E.; de Oliveira, Thales V. A. G. et al.
2015In Nature Communications, 6, p. 6150
Peer Reviewed verified by ORBi
 

Files


Full Text
No document available.

Send to



Details



Abstract :
[en] Systems allowing label-free molecular detection are expected to have enormous impact on biochemical sciences. Research focuses on materials and technologies based on exploiting localized surface plasmon resonances in metallic nanostructures. The reason for this focused attention is their suitability for single-molecule sensing, arising from intrinsically nanoscopic sensing volume and the high sensitivity to the local environment. Here we propose an alternative route, which enables radically improved sensitivity compared with recently reported plasmon-based sensors. Such high sensitivity is achieved by exploiting the control of the phase of light in magnetoplasmonic nanoantennas. We demonstrate a manifold improvement of refractometric sensing figure-of-merit. Most remarkably, we show a raw surface sensitivity (that is, without applying fitting procedures) of two orders of magnitude higher than the current values reported for nanoplasmonic sensors. Such sensitivity corresponds to a mass of ~ 0.8 ag per nanoantenna of polyamide-6.6 (n=1.51), which is representative for a large variety of polymers, peptides and proteins.
Disciplines :
Physics
Author, co-author :
Maccaferri, Nicolò ;  CIC nanoGUNE
Gregorczyk, Keith E.
de Oliveira, Thales V. A. G.
Kataja, Mikko
van Dijken, Sebastiaan
Pirzadeh, Zhaleh
Dmitriev, Alexandre
Akerman, Johan
Knez, Mato
Vavassori, Paolo
External co-authors :
yes
Language :
English
Title :
Ultrasensitive and label-free molecular-level detection enabled by light phase control in magnetoplasmonic nanoantennas
Publication date :
2015
Journal title :
Nature Communications
ISSN :
2041-1723
Publisher :
Nature Publishing Group, London, United Kingdom
Volume :
6
Pages :
6150
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 22 February 2019

Statistics


Number of views
56 (8 by Unilu)
Number of downloads
0 (0 by Unilu)

Scopus citations®
 
178
Scopus citations®
without self-citations
144
OpenCitations
 
139
WoS citations
 
2

Bibliography


Similar publications



Contact ORBilu