Paper Info
Title
Detecting organic molecules using Au nanoparticle dimers with supramolecular interactions
Abstract
In this work, we have developed a controlled method of functionalization of colloidal nanoparticles in solution based in using rigid molecules as linkers (Cucurbituril molecules) which allow us to obtain reproducible hot spots in gold nanoparticle dimers, due to the control of the gap size between the plasmonic structures with subnanometer precision, and at the same time enables placing analyte molecules precisely within these junctions of ultrahigh field enhancement. This novel protocol allows to obtain dimers of Au NPs using cucurbit[6]uril as linker in a reproducible manner that are stable over several days. The sensing performance of these dimeric structures, is by far superior to previous work using supramolecular interactions, as demonstrated by measuring the SERS response of this system using cucurbituril linker as the host and methyl viologen as the guest molecule.
Year
DOI
Venue
2014
10.1109/ICTON.2014.6876650
Transparent Optical Networks
Keywords
DocType
ISSN
chemical sensors,chemical variables measurement,colloids,gold,macromolecules,molecular biophysics,nanoparticles,nanosensors,organic compounds,plasmonics,surface enhanced Raman scattering,surface plasmons,Au,Cucurbituril molecule linker,SERS response,analyte molecules,colloidal nanoparticles,cucurbit[6]uril,dimeric structures,functionalization,methyl viologen,nanoparticle dimers,organic molecule detection,plasmonic structures,reproducible hot spots,rigid molecules,sensing performance,supramolecular interactions,ultrahigh field enhancement,cucurbit[6]uril,host-guest,plasmonic nanoparticles dimers,quantitative SERS,self-assembled nanoparticles,sensing
Conference
2162-7339
Citations 
PageRank 
References 
0
0.34
0
Authors
6
Name
Order
Citations
PageRank
Juan C. Fraire100.34
Sueldo Ocello, V.N.200.34
Leandro Allende300.34
Alicia V. Veglia400.34
Valeria N. Sueldo Ocello500.34
Eduardo A. Coronado600.68