Modification of Gold Surface with Gold Nanoparticles and Cyclohexyl Dithiocarbamate as a Selective Sensor for Cysteine

Modification of Gold Surface with Gold Nanoparticles and Cyclohexyl Dithiocarbamate as a Selective Sensor for Cysteine

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 appl...

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Main Authors: Ehab AlShamaileh, Haytham Saadeh, Valerie Favry
Format: Article
Language:English
Published: Hindawi Limited 2013-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2013/383921
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spelling doaj-4639396c979442d6ad0d6979e1a12d152020-11-25T01:05:11ZengHindawi LimitedJournal of Chemistry2090-90632090-90712013-01-01201310.1155/2013/383921383921Modification of Gold Surface with Gold Nanoparticles and Cyclohexyl Dithiocarbamate as a Selective Sensor for CysteineEhab AlShamaileh0Haytham Saadeh1Valerie Favry2Department of Chemistry, Faculty of Science, The University of Jordan, Amman 11942, JordanDepartment of Chemistry, Faculty of Science, The University of Jordan, Amman 11942, JordanFaculty of Sciences and Humanities, Salman bin Abdulaziz University, Al-Kharj 11942, Saudi ArabiaThe 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.http://dx.doi.org/10.1155/2013/383921
collection DOAJ
language English
format Article
sources DOAJ
author Ehab AlShamaileh
Haytham Saadeh
Valerie Favry
spellingShingle Ehab AlShamaileh
Haytham Saadeh
Valerie Favry
Modification of Gold Surface with Gold Nanoparticles and Cyclohexyl Dithiocarbamate as a Selective Sensor for Cysteine
Journal of Chemistry
author_facet Ehab AlShamaileh
Haytham Saadeh
Valerie Favry
author_sort Ehab AlShamaileh
title Modification of Gold Surface with Gold Nanoparticles and Cyclohexyl Dithiocarbamate as a Selective Sensor for Cysteine
title_short Modification of Gold Surface with Gold Nanoparticles and Cyclohexyl Dithiocarbamate as a Selective Sensor for Cysteine
title_full Modification of Gold Surface with Gold Nanoparticles and Cyclohexyl Dithiocarbamate as a Selective Sensor for Cysteine
title_fullStr Modification of Gold Surface with Gold Nanoparticles and Cyclohexyl Dithiocarbamate as a Selective Sensor for Cysteine
title_full_unstemmed Modification of Gold Surface with Gold Nanoparticles and Cyclohexyl Dithiocarbamate as a Selective Sensor for Cysteine
title_sort modification of gold surface with gold nanoparticles and cyclohexyl dithiocarbamate as a selective sensor for cysteine
publisher Hindawi Limited
series Journal of Chemistry
issn 2090-9063
2090-9071
publishDate 2013-01-01
description 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.
url http://dx.doi.org/10.1155/2013/383921
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AT haythamsaadeh modificationofgoldsurfacewithgoldnanoparticlesandcyclohexyldithiocarbamateasaselectivesensorforcysteine
AT valeriefavry modificationofgoldsurfacewithgoldnanoparticlesandcyclohexyldithiocarbamateasaselectivesensorforcysteine
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