Modification of Gold surface with gold nanoparticles and cyclohexyl dithiocarbamate as a selective sensor for cysteine

Ehab Alshamaileh, Haytham Saadeh, Valerie Favry

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The self-assembly of cyclohexylamine dithiocarbamate (C6DTC) on gold (Au) and gold nanoparticles (AuNPs) was studied electrochemically using cyclic voltammetry (CV). Cyclic voltammetry was used to study the system Fe (CN) 63-/Fe(CN)64- at the electrode surface of (C6DTC/Au) and (C6DTC/AuNPs). The application of the resulting chemically modified surface as a selective sensor for cysteine, among other amino acids, was investigated. Linear oxidative desorption technique was used to characterize the modified electrode that consists of the self-assembled monolayer of cyclohexylamine dithiocarbamate on gold nanoparticles deposited on Au electrode (C6DTC/AuNPs/Au). The results showed an enhancement in the oxidation peak of cysteine on the modified electrode and hence a greater sensitivity.

Original languageEnglish
Article number383921
JournalJournal of Chemistry
DOIs
Publication statusPublished - 2013
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)

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