Author:
Pavličková Michaela,Lorencová Lenka,Hatala Michal,Kováč Miroslav,Tkáč Ján,Gemeiner Pavol
Abstract
AbstractMolybdenum disulfide (MoS2) screen-printed working electrodes were developed for dopamine (DA) electrochemical sensing. MoS2 working electrodes were prepared from high viscosity screen-printable inks containing various concentrations and sizes of MoS2 particles and ethylcellulose binder. Rheological properties of MoS2 inks and their suitability for screen-printing were analyzed by viscosity curve, screen-printing simulation and oscillatory modulus. MoS2 inks were screen-printed onto conductive FTO (Fluorine-doped Tin Oxide) substrates. Optical microscopy and scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM/EDX) analysis were used to characterize the homogeneity, topography and thickness of the screen-printed MoS2 electrodes. The electrochemical performance was assessed through differential pulse voltammetry. Results showed an extensive linear detection of dopamine from 1 µM to 300 µM (R2 = 0.996, sensitivity of 5.00 × 10–8 A μM−1), with the best limit of detection being 246 nM. This work demonstrated the possibility of simple, low-cost and rapid preparation of high viscosity MoS2 ink and their use to produce screen-printed FTO/MoS2 electrodes for dopamine detection.
Funder
Ministerstvo školstva, vedy, výskumu a športu Slovenskej republiky
Agentúra na Podporu Výskumu a Vývoja
Operational Program Integrated Infrastructure
Publisher
Springer Science and Business Media LLC
Reference47 articles.
1. Yang, Y., Deng, H. & Fu, Q. Recent progress on PEDOT:PSS based polymer blends and composites for flexible electronics and thermoelectric devices. Mater. Chem. Front. 4, 3130–3152 (2020).
2. Novoselov, K. S. et al. Electric field effect in atomically thin carbon films. Gene Expr. Genes Action 306, 666–669 (2004).
3. Cheng, L. et al. 2D nanomaterials for cancer theranostic applications. Adv. Mater. 32, 1902333 (2020).
4. Zhang, H., Chhowalla, M. & Liu, Z. 2D nanomaterials: Graphene and transition metal dichalcogenides. Chem. Soc. Rev. 47, 3015–3017 (2018).
5. Vilian, A. T. E. et al. Recent advances in molybdenum disulfide-based electrode materials for electroanalytical applications. Microchim. Acta 186, 203 (2019).
Cited by
15 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献