Gly-Gly-His immobilized on monolayer modified back-side contact miniaturized sensors for complexation of copper ions

Urszula E. Wawrzyniak*, Patrycja Ciosek, Michał Zaborowski, Guozhen Liu, J. Justin Gooding

*Corresponding author for this work

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Miniaturized planar back-side contact transducers (BSC) with chemically modified gold surface have been utilized as electrochemical sensors. The electrodes have been functionalized by sequential immobilization of aryl diazonium salts or alkanethiols and short peptide Gly-Gly-His. The applicability of gold substrates modified with aryl diazonium salts in voltammetric detection of copper(II) ions in aqueous solutions has been studied. The combination of two fundamental elements of the solid-state electrode, i.e. back-side contact (BSC) gold sensor and self-assembled monolayers, allowed one to obtain reliable miniaturized copper(II) ion sensors. It can have important future applications in environmental sensing or in implantable biodevices.

Original languageEnglish
Pages (from-to)1461-1471
Number of pages11
JournalElectroanalysis
Volume25
Issue number6
DOIs
Publication statusPublished - Jun 2013
Externally publishedYes

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