Title
Silver Nanoparticle Modified Electrode Covered by Graphene Oxide for the Enhanced Electrochemical Detection of Dopamine.
Abstract
Several neurological disorders such as Alzheimer's disease and Parkinson's disease have become a serious impediment to aging people nowadays. One of the efficient methods used to monitor these neurological disorders is the detection of neurotransmitters such as dopamine. Metal materials, such as gold and platinum, are widely used in this electrochemical detection method; however, low sensitivity and linearity at low dopamine concentrations limit the use of these materials. To overcome these limitations, a silver nanoparticle (SNP) modified electrode covered by graphene oxide for the detection of dopamine was newly developed in this study. For the first time, the surface of an indium tin oxide (ITO) electrode was modified using SNPs and graphene oxide sequentially through the electrochemical deposition method. The developed biosensor provided electrochemical signal enhancement at low dopamine concentrations in comparison with previous biosensors. Therefore, our newly developed SNP modified electrode covered by graphene oxide can be used to monitor neurological diseases through electrochemical signal enhancement at low dopamine concentrations.
Year
DOI
Venue
2017
10.3390/s17122771
SENSORS
Keywords
Field
DocType
silver nanoparticle,neurotransmitter,dopamine,graphene oxide,electrochemical signal
Nanotechnology,Oxide,Graphene,Silver nanoparticle,Platinum,Engineering,Biosensor,Electrochemistry,Electrode,Indium tin oxide
Journal
Volume
Issue
ISSN
17
12.0
1424-8220
Citations 
PageRank 
References 
0
0.34
1
Authors
6
Name
Order
Citations
PageRank
Jae-Wook Shin100.34
Kyeong-Jun Kim200.34
Jinho Yoon300.34
Jinhee Jo400.34
Waleed Ahmed El-Said500.34
Jeong-Woo Choi612.41