In Situ Laser-Induced Fabrication of a Ruthenium-Based Microelectrode for Non-Enzymatic Dopamine Sensing.
Maxim S PanovAnastasiia E GrishankinaDaniil D StupinAlexey I LihachevVladimir N MironovDaniil M StrashkovEvgeniia M KhairullinaIlya I TumkinMikhail N RyazantsevPublished in: Materials (Basel, Switzerland) (2020)
In this paper, we propose a fast and simple approach for the fabrication of the electrocatalytically active ruthenium-containing microstructures using a laser-induced metal deposition technique. The results of scanning electron microscopy and electrical impedance spectroscopy (EIS) demonstrate that the fabricated ruthenium-based microelectrode had a highly developed surface composed of 10 μm pores and 10 nm zigzag cracks. The fabricated material exhibited excellent electrochemical properties toward non-enzymatic dopamine sensing, including high sensitivity (858.5 and 509.1 μA mM-1 cm-2), a low detection limit (0.13 and 0.15 μM), as well as good selectivity and stability.
Keyphrases
- electron microscopy
- deep brain stimulation
- hydrogen peroxide
- uric acid
- label free
- high resolution
- gold nanoparticles
- low cost
- photodynamic therapy
- tissue engineering
- single molecule
- ionic liquid
- prefrontal cortex
- loop mediated isothermal amplification
- real time pcr
- magnetic resonance imaging
- molecularly imprinted
- magnetic resonance
- computed tomography