Gold Nanorods as Plasmonic Sensors for Particle Diffusion

Publication type:
Journal article
Metadata:
Autoren
  • Verena Wulf
  • Fabian Knoch
  • Thomas Speck
  • Carsten Soennichsen
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000389175200025&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1021/acs.jpclett.6b02165
Externe Identifier
  • Clarivate Analytics Document Solution ID: ED9FI
  • PubMed Identifier: 27934054
ISSN
1948-7185
Ausgabe der Veröffentlichung
23
Zeitschrift
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Paginierung
4951 - 4955
Datum der Veröffentlichung
2016
Status
Published
Titel
Gold Nanorods as Plasmonic Sensors for Particle Diffusion
Sub types
  • Article
Ausgabe der Zeitschrift
7

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
  • Verena Wulf
  • Fabian Knoch
  • Thomas Speck
  • Carsten Sönnichsen
DOI
10.1021/acs.jpclett.6b02165
eISSN
1948-7185
ISSN
1948-7185
Ausgabe der Veröffentlichung
23
Zeitschrift
The Journal of Physical Chemistry Letters
Sprache
en
Online publication date
2016
Paginierung
4951 - 4955
Datum der Veröffentlichung
2016
Status
Published
Herausgeber
American Chemical Society (ACS)
Herausgeber URL
http://dx.doi.org/10.1021/acs.jpclett.6b02165
Datum der Datenerfassung
2023
Titel
Gold Nanorods as Plasmonic Sensors for Particle Diffusion
Ausgabe der Zeitschrift
7

Data source: Crossref

Abstract
Plasmonic gold nanoparticles are normally used as sensor to detect analytes permanently bound to their surface. If the interaction between the analyte and the nanosensor surface is negligible, it only diffuses through the sensor's sensing volume, causing a small temporal shift of the plasmon resonance position. By using a very sensitive and fast detection scheme, we are able to detect these small fluctuations in the plasmon resonance. With the help of a theoretical model consistent with our detection geometry, we determine the analyte's diffusion coefficient. The method is verified by observing the trends upon changing diffusor size and medium viscosity, and the diffusion coefficients obtained were found to reflect reduced diffusion close to a solid interface. Our method, which we refer to as NanoPCS (for nanoscale plasmon correlation spectroscopy), is of practical importance for any application involving the diffusion of analytes close to nanoparticles.
Addresses
  • Institute of Physical Chemistry and ‡Institute of Physics, University of Mainz , D-55128 Mainz, Germany.
Autoren
  • Verena Wulf
  • Fabian Knoch
  • Thomas Speck
  • Carsten Sönnichsen
DOI
10.1021/acs.jpclett.6b02165
eISSN
1948-7185
Externe Identifier
  • PubMed Identifier: 27934054
Funding acknowledgements
  • European Research Council: 259640
  • Deutsche Forschungsgemeinschaft: TRR 146
Open access
false
ISSN
1948-7185
Ausgabe der Veröffentlichung
23
Zeitschrift
The journal of physical chemistry letters
Sprache
eng
Medium
Print-Electronic
Online publication date
2016
Paginierung
4951 - 4955
Datum der Veröffentlichung
2016
Status
Published
Datum der Datenerfassung
2016
Titel
Gold Nanorods as Plasmonic Sensors for Particle Diffusion.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
7

Data source: Europe PubMed Central

Abstract
Plasmonic gold nanoparticles are normally used as sensor to detect analytes permanently bound to their surface. If the interaction between the analyte and the nanosensor surface is negligible, it only diffuses through the sensor's sensing volume, causing a small temporal shift of the plasmon resonance position. By using a very sensitive and fast detection scheme, we are able to detect these small fluctuations in the plasmon resonance. With the help of a theoretical model consistent with our detection geometry, we determine the analyte's diffusion coefficient. The method is verified by observing the trends upon changing diffusor size and medium viscosity, and the diffusion coefficients obtained were found to reflect reduced diffusion close to a solid interface. Our method, which we refer to as NanoPCS (for nanoscale plasmon correlation spectroscopy), is of practical importance for any application involving the diffusion of analytes close to nanoparticles.
Autoren
  • Verena Wulf
  • Fabian Knoch
  • Thomas Speck
  • Carsten Sönnichsen
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/27934054
DOI
10.1021/acs.jpclett.6b02165
eISSN
1948-7185
Ausgabe der Veröffentlichung
23
Zeitschrift
J Phys Chem Lett
Sprache
eng
Country
United States
Paginierung
4951 - 4955
Datum der Veröffentlichung
2016
Status
Published
Datum, an dem der Datensatz öffentlich gemacht wurde
2018
Titel
Gold Nanorods as Plasmonic Sensors for Particle Diffusion.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
7

Data source: PubMed

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