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NANOTECHNOLOGY AND BIOSENSORS
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SYSNO ASEP 0535968 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Carbon Electrodes in Electrochemical Analysis of Biomolecules and Bioactive Substances: Roles of Surface Structures and Chemical Groups Author(s) Hasoň, Stanislav (BFU-R) RID, ORCID
Daňhel, Aleš (BFU-R) RID, ORCID
Schwarzová-Pecková, K. (CZ)
Fojta, Miroslav (BFU-R) RID, ORCIDNumber of authors 4 Source Title NANOTECHNOLOGY AND BIOSENSORS. - AMSTERDAM, NETHERLANDS : ELSEVIER SCIENCE BV, 2018 / Nikolelis DP ; Nikoleli GP - ISBN 978-0-12-813855-7 Pages roč. 2018, č. 2018 (2018), s. 51-111 Series Micro & Nano Technologies Number of pages 61 s. Number of pages 470 Publication form Print - P Language eng - English Country NL - Netherlands Keywords boron-doped diamond ; oriented pyrolytic-graphite ; square-wave voltammetry ; adsorptive stripping voltammetry ; charge-transfer reactions ; amyloid-beta peptides ; label-free detection Subject RIV CE - Biochemistry OECD category Biochemistry and molecular biology R&D Projects GBP206/12/G151 GA ČR - Czech Science Foundation (CSF) Institutional support BFU-R - RVO:68081707 UT WOS 000532363700004 EID SCOPUS 85054897941 DOI 10.1016/B978-0-12-813855-7.00003-9 Annotation In this chapter we focus on the properties of graphitic carbon and boron-doped diamond (BDD) electrodes from the point of view of surface micro- and nanostructures, chemistry of surface termination, effects of these characteristics on electron transfer and adsorption characteristics of the electrodes. Their properties are discussed in relation to electrochemical responses measured for typical groups of analytes, such as nucleic acid and protein constituents or other electroactive compounds. In general, basal planes of graphitic materials are sites of preferential adsorption of organic compounds while the edge planes and defects are sites of fast electron transfer for a number of analytes. At the BDD, fast electron transfer kinetics is observed particularly at hydrogenated and polished surfaces. Surface termination with oxygenous groups causes the electron transfer rate to decrease and renders the carbon surface hydrophilic properties, manifested in decreased adsorption of hydrophobic molecules and involvement of coulombic forces and hydrogen bonds in interactions of relevant analytes with the electrode surfaces. Examples of applications in the area of electroanalysis of biomolecules and their components are briefly discussed.
Workplace Institute of Biophysics Contact Jana Poláková, polakova@ibp.cz, Tel.: 541 517 244 Year of Publishing 2021 Electronic address https://www.sciencedirect.com/science/article/pii/B9780128138557000039
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