Premium
Electrochemical structure‐switching sensing using nanoplasmonic devices
Author(s) -
Patskovsky Sergiy,
Dallaire AnneMarie,
BlanchardDionne AndrePierre,
ValléeBélisle Alexis,
Meunier Michel
Publication year - 2015
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201500229
Subject(s) - materials science , plasmon , electrode , nanostructure , optoelectronics , nanotechnology , electrochemistry , microfluidics , surface plasmon resonance , nanoparticle , chemistry
In this article, the implementation of electrochemical plasmonic nanostructures functionalized with DNA‐based structure‐switching sensors is presented. eNanoSPR devices with open and microfluidic measurement cells are developed on the base of nanohole arrays in 100 nm gold film and applied for combined microscopic and electrochemical surface plasmon (eSPR) visualization. eSPR voltammograms and spectroscopy are performed using planar three electrode schematic with plasmonic nanostructure operated as working electrode. Limit of detection of eNanoSPR devices for oligonucleotide hybridization is estimated in the low nanomolar and applications for structure‐switching electro‐plasmonic sensing in complex liquids are discussed.