Author
Khan, Muhammad Salman, Asif, Afia, Khawaldeh, S., Tekin, Ahmet
Publication Date
2018
Publication Place
-
Sciendo
Subject
Dopamine, Cyclic-voltammetry, Mercaptopropionic acid, Microfabrication
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1891-5469
Record ID
ff7ca091-bc09-40c9-8cbe-8383a01c0f61
Library Location
Electrical & Electronics Engineering
Date
2018
Notes
This article has been retracted. Retraction note: https://doi.org/10.2478/joeb-2018-0008
The reason for the retraction is misunderstanding and communication failure between the authors.
Sample Text
Gold electrodes are often not suitable for dopamine measurements as dopamine creates a non-conducting polymer layer on the surface of the electrodes, which leads to increased amount of electrode passivity with the gradual increase in voltammograms measurement. This work presents the impedance spectroscopy and cyclic-voltammetry comparative study for dopamine detection with two modifications for the surface of Au electrodes; cysteamine and mercaptopropionic acid for thermally bonded and ultrasonically welded microfluidic chips, respectively. The effects of optimized tubing selection, bonding techniques, and cleaning methods of the devices with KOH solution played crucial role for improvements in dopamine detection, which are observed in the results. Furthermore, comparison for the modification with unmodified chips, and finding the unknown concentration of dopamine solution using flow injection techniques, is also illustrated.
DOI
10.2478/joeb-2018-0002
Cilt
9
