Share Email Print
cover

Proceedings Paper

Screen printed graphene electrodes for voltammetric dopamine determination
Author(s): T. Raczyński; D. Janczak; J. Jankowska-Śliwińska; M. Dawgul; A. Paziewska-Nowak; D. Pijanowska; M. Zych; M. Jakubowska
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

In this work, new graphene-based screen-printed electrodes are proposed as a new, cheaper alternative to more common electrodes for determination of dopamine. Electrodes were designed, manufactured and tested to look for correlations between different graphene weight percentages used in electrodes and oxidation peaks and sensitivity in dopamine determination. All electrodes were tested using cyclic voltammetry. For a reference, graphite electrodes were tested. With sensitivity of 0.0161 μA/μM and detection limit of 5.549 μM those electrodes showed potential promise in use of graphene for electrode material. In electrodes manufacturing, Laroflex and PMMA based vehicles were mixed in with graphene platelets with diameters ranging over 2 μm and thickness between 8-15 nm. Initial tests with electrodes screen printed with graphene layers of 150 μM showed very low response. 0.0077 μA/μM sensitivity and 11.970 μM detection limit were achieved with Laroflex based electrodes. Further testing with thicker layers gave more impressive results with detection limit going as low as 1.349 μM and 0.1343 μA/μM sensitivity. Such results bring those electrodes to comparable level with other electrodes available.

Paper Details

Date Published: 6 November 2019
PDF: 7 pages
Proc. SPIE 11176, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2019, 111764L (6 November 2019); doi: 10.1117/12.2535784
Show Author Affiliations
T. Raczyński, Warsaw Univ. of Technology (Poland)
D. Janczak, Warsaw Univ. of Technology (Poland)
J. Jankowska-Śliwińska, Institute of Electron Technology (Poland)
M. Dawgul, Nałęcz Institute of Biocybernetics and Biomedical Engineering (Poland)
A. Paziewska-Nowak, Nałęcz Institute of Biocybernetics and Biomedical Engineering (Poland)
D. Pijanowska, Nałęcz Institute of Biocybernetics and Biomedical Engineering (Poland)
M. Zych, Warsaw Univ. of Technology (Poland)
M. Jakubowska, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 11176:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2019
Ryszard S. Romaniuk; Maciej Linczuk, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray