Label-free detection of single nanoparticles with disordered nanoisland surface plasmon sensor.
File(s)
Published version
Author(s)
Lee, Hongki
Berk, Joel
Webster, Aaron
Kim, Donghyun
Foreman, Matthew R
Type
Journal Article
Abstract
We report sensing of single nanoparticles using disordered metallic nanoisland substrates supporting surface plasmon polaritons (SPPs). Speckle patterns arising from leakage radiation of elastically scattered SPPs provides a unique fingerprint of the scattering microstructure at the sensor surface. Experimental measurements of the speckle decorrelation are presented and shown to enable detection of sorption of individual gold nanoparticles and polystyrene beads. Our approach is verified through bright-field and fluorescence imaging of particles adhering to the nanoisland substrate.
Date Issued
2022-01-24
Date Acceptance
2021-12-16
Citation
Nanotechnology, 2022, 33, pp.1-11
ISSN
0957-4484
Publisher
IOP Publishing
Start Page
1
End Page
11
Journal / Book Title
Nanotechnology
Volume
33
Copyright Statement
© 2021 The Author(s). Original content from this work may be used under the terms
of the Creative Commons Attribution 4.0 licence. Any
further distribution of this work must maintain attribution to the author(s) and
the title of the work, journal citation and DOI.
of the Creative Commons Attribution 4.0 licence. Any
further distribution of this work must maintain attribution to the author(s) and
the title of the work, journal citation and DOI.
License URL
Sponsor
The Royal Society
Royal Society
Engineering and Physical Sciences Research Council
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/34915461
Grant Number
UF150335
University Research Fellowship
1992728
Subjects
disordered nanoislands
nanoparticles
single particle detection
surface plasmon sensing
Publication Status
Published
Coverage Spatial
England
Date Publish Online
2022-01-24