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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Isoaho, Noora
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Publications (6/6 displayed)
- 2022Microfabrication atomic layer deposited Pt NPs/TiN thin film on silicon as a nanostructure signal Transducer: Electrochemical characterization toward neurotransmitter sensingcitations
- 2019Integrating Carbon Nanomaterials with Metals for Bio-sensing Applicationscitations
- 2018Carbon Nanostructures for Enzymatic Electrochemical Biosensors ; Hiilinanorakenteet entsymaattisten sähkökemiallisten bioanturien valmistamiseencitations
- 2017Amorphous carbon thin film electrodes with intrinsic Pt-gradient for hydrogen peroxide detectioncitations
- 2017Amorphous carbon thin film electrodes with intrinsic Pt-gradient for hydrogen peroxide detectioncitations
- 2017Carbon Nanostructure Based Platform for Enzymatic Glutamate Biosensorscitations
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article
Microfabrication atomic layer deposited Pt NPs/TiN thin film on silicon as a nanostructure signal Transducer: Electrochemical characterization toward neurotransmitter sensing
Abstract
| openaire: EC/H2020/824070/EU//CONNECT Funding Information: The authors thank Dr. Ville Rontu for valuable discussions in ALD process, Niklas Wester and Antti Peltonen for help with preparing electrode samples. The work utilized the fabrication and characterization facilities of Aalto University, cleanroom facilities of Micronova micro and nanofabrication center, and Nanotalo-Nanomicroscopy Center (Aalto-NMC). This project has received funding from the Horizon 2020 Framework Programme Project : 824070 — CONNECT. Publisher Copyright: © 2021 ; Titanium nitride (TiN) is widely utilized in microelectrode array fabrication for electrophysiological recordings due to its relatively low noise levels, long term stability, and exceptional biocompatibility. Atomic layer deposition (ALD) is a well-established approach for the fabrication of TiN thin films, offering great control over the thickness and properties of the films. Although, advanced procedures have been reported to develop micro and nanostructured electrodes, TiN thin film has yet not been widely applied as electrode material for electrochemical sensing, and characterization of these ALD fabricated TiN films is lacking. Here, we study the use of TiN thin films as electrochemical signal transducer for neurotransmitter dopamine (DA) detection with emphasis on investigation the effect of oxygen functionalities on the electrochemical performance of the films. We find that in order to have high enough sensitivity and selectivity the electrode material used to realize the measurements must be modified. In this work, we described TiN thin film surface modification through hybridization of microfabrication and nanocomposite approaches. Because of its good adhesion, TiN is considered as a high interesting support for Pt catalyst. Therefore, ALD was used to deposit TiN thin films and to design Pt nanoparticles (Pt NPs) on highly conductive boron-doped silicon. Further modification was done through multiwalled carbon nanotubes (MWCNTs), which were immobilized on Pt NPs/ ...