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Niklas Wester
Researcher at Aalto University
Publications - 36
Citations - 609
Niklas Wester is an academic researcher from Aalto University. The author has contributed to research in topics: Amorphous carbon & Thin film. The author has an hindex of 12, co-authored 31 publications receiving 378 citations.
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Journal ArticleDOI
Unmodified and multi-walled carbon nanotube modified tetrahedral amorphous carbon (ta-C) films as in vivo sensor materials for sensitive and selective detection of dopamine
Tommi Palomäki,Emilia Peltola,Sami Sainio,Niklas Wester,Olli Pitkänen,Krisztian Kordas,Jari Koskinen,Tomi Laurila +7 more
TL;DR: Modification with MWCNTs resulted in excellent selectivity and all three analytes could be detected simultaneously at physiologically relevant concentrations using cyclic voltammetry.
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Electron transport determines the electrochemical properties of tetrahedral amorphous carbon (ta-C) thin films
Tommi Palomäki,Niklas Wester,Miguel A. Caro,Sami Sainio,Vera Protopopova,Jari Koskinen,Tomi Laurila +6 more
TL;DR: In this article, the effect of film thickness on the electrochemical properties of tetrahedral amorphous carbon (ta-C) electrodes was investigated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS).
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Correlation between sp3-to-sp2 Ratio and Surface Oxygen Functionalities in Tetrahedral Amorphous Carbon (ta-C) Thin Film Electrodes and Implications of Their Electrochemical Properties
Sami Sainio,Dennis Nordlund,Miguel A. Caro,Ram P. Gandhiraman,Jessica E. Koehne,Niklas Wester,Jari Koskinen,M. Meyyappan,Tomi Laurila +8 more
TL;DR: A detailed X-ray absorption spectroscopy study of two different tetrahedral amorphous-carbon (ta-C) thin films and their subsequent electrochemical characterization is presented in this paper.
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Nanodiamonds on tetrahedral amorphous carbon significantly enhance dopamine detection and cell viability.
Emilia Peltola,Emilia Peltola,Niklas Wester,Katherine B. Holt,Leena-Sisko Johansson,Jari Koskinen,Vesa Myllymäki,Tomi Laurila +7 more
TL;DR: It is demonstrated here that by using functionalized NDs on ta-C thin films the authors can significantly improve sensitivity towards dopamine as well as selectively promote cell viability and provide an interesting concept for development of various in vivo targeted sensor solutions.
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Multiwalled Carbon Nanotubes/Nanofibrillar Cellulose/Nafion Composite-Modified Tetrahedral Amorphous Carbon Electrodes for Selective Dopamine Detection
Vasuki Durairaj,Niklas Wester,Jarkko Etula,Tomi Laurila,Janika Lehtonen,Orlando J. Rojas,Nikolaos Pahimanolis,Jari Koskinen +7 more
TL;DR: In this article, a composite membrane comprised of multiwalled carbon nanotubes (MWCNTs) dispersed in a matrix of sulfated nanofibrillar cellulose (SNFC) and Nafion is introduced.