Online / 06. September 2021 - 09. September 2021
31. International Conference on Diamond and Carbon Materials
Der thematische Fokus der Konferenz liegt auf den Themen Diamant, Kohlenstoff-Nanoröhrchen, Graphene und die neue Forschung zu alternativen kohlenstoffbasierten Materialien. Die Konferenz umfasst traditionell das komplette Spektrum von der Materialvorbereitung über grundlegende physikalische und chemische Konzepte bis hin zur angewandten Forschung, die sich mit neuartigen Gerätekonzepten beschäftigt, die die bemerkenswerten Eigenschaften von Kohlenstoffmaterialien nutzen.
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Posterpräsentation
Jan Gäbler, Volker Sittinger, Martin Menzler
Abstract
Diamond is a unique material for electrochemistry: Its remarkable wide potential window enables unrivalled redox reactions that cannot be performed with other electrode materials; it enables high signal-to-noise ratios due to its low background current; and it has an extreme chemical and mechanical stability, providing constant results over a long time. These exceptional properties offer a great potential for sensing applications, especially for biosensing, where biomolecules are being detected via electrochemical redox reactions. Using diamond as electrode material has the potential to increase the sensitivity of biosensors, e.g. for the detection of pathogens like viruses. Results will be presented about biosensing experiments with boron-doped diamond electrodes. A largearea hot-filament activated CVD technology will be used to deposit the diamond electrodes in a costeffective way, with variation of the boron doping-level. Electrochemical impedance spectroscopy (EIS) will be used to analyse electrolytes with different biomolecules. The diamond electrode surface will be functionalised to enable a selection of the detected biomolecule. Results will be shown about testing of different functionalisation coatings and their effect on the EIS results.