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Open AccessArticle

Influence of the Silver Nanoparticles (AgNPs) Formation Conditions onto Titanium Dioxide (TiO2) Nanotubes Based Electrodes on Their Impedimetric Response

1
Department of Biomedical Engineering, Faculty of Mechanical Engineering, University of Zielona Góra, Prof. Z. Szafrana 4, 54-516 Zielona Góra, Poland
2
Nałęcz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Ks. Trojdena 4, 02-109 Warszawa, Poland
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(8), 1072; https://doi.org/10.3390/nano9081072
Received: 18 June 2019 / Revised: 17 July 2019 / Accepted: 24 July 2019 / Published: 25 July 2019
This paper presents the comparison of the effects of three methods of production of silver spherical and near-spherical nanoparticles (AgNPs) on the titanium dioxide nanotubes (TNT) base: cyclic voltammetry, chronoamperometry, and sputter deposition. It also evaluates the influence of silver nanoparticles on the electrochemical properties of the developed electrodes. The novelty of this research was to fabricate regular AgNPs free of agglomerates uniformly distributed onto the TNT layer, which has not been accomplished with previous attempts. The applied methods do not require stabilizing and reducing reagents. The extensive electrochemical characteristic of AgNP/TNT was performed by open circuit potential and electrochemical impedance spectroscopy methods. For AgNPs/TNT obtained by each method, the impedance module of these electrodes was up to 50% lower when compared to TNT, which means that AgNPs enabled more efficient electron transfer due to the effective area increase. In addition, the presence of nanoparticles increases the corrosion resistance of the prepared electrodes. These substrates can be used as electrochemical sensors due to their high electrical conductivity, and also as implants due to the antibacterial properties of both the TNT and AgNPs. View Full-Text
Keywords: titanium dioxide (TiO2); titanium nanotubes (TNT); silver nanoparticles (AgNPs); electrochemical impedance spectroscopy; sputter deposition; chronoamperometry; cyclic voltammetry titanium dioxide (TiO2); titanium nanotubes (TNT); silver nanoparticles (AgNPs); electrochemical impedance spectroscopy; sputter deposition; chronoamperometry; cyclic voltammetry
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MDPI and ACS Style

Nycz, M.; Arkusz, K.; Pijanowska, D.G. Influence of the Silver Nanoparticles (AgNPs) Formation Conditions onto Titanium Dioxide (TiO2) Nanotubes Based Electrodes on Their Impedimetric Response. Nanomaterials 2019, 9, 1072. https://doi.org/10.3390/nano9081072

AMA Style

Nycz M, Arkusz K, Pijanowska DG. Influence of the Silver Nanoparticles (AgNPs) Formation Conditions onto Titanium Dioxide (TiO2) Nanotubes Based Electrodes on Their Impedimetric Response. Nanomaterials. 2019; 9(8):1072. https://doi.org/10.3390/nano9081072

Chicago/Turabian Style

Nycz, Marta; Arkusz, Katarzyna; Pijanowska, Dorota G. 2019. "Influence of the Silver Nanoparticles (AgNPs) Formation Conditions onto Titanium Dioxide (TiO2) Nanotubes Based Electrodes on Their Impedimetric Response" Nanomaterials 9, no. 8: 1072. https://doi.org/10.3390/nano9081072

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