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Mixing nitrogenous ligands in osmium(VI)ligand-polysaccharide complexes. Voltammetric sensing
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SYSNO ASEP 0570208 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Mixing nitrogenous ligands in osmium(VI)ligand-polysaccharide complexes. Voltammetric sensing Author(s) Trefulka, Mojmír (BFU-R) RID, ORCID
Ostatná, Veronika (BFU-R) RID, ORCIDNumber of authors 2 Article number 116978 Source Title Journal of Electroanalytical Chemistry. - : Elsevier - ISSN 1572-6657
Roč. 928, č. 2023 (2023)Number of pages 7 s. Publication form Online - E Language eng - English Country NL - Netherlands Keywords Chemical modification of carbohydrates ; Dextran ; Osmium(VI) complexes ; Polysaccharides ; Electrochemical analysis Subject RIV CG - Electrochemistry OECD category Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) R&D Projects GA22-26590S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support BFU-R - RVO:68081707 UT WOS 000930492100004 EID SCOPUS 85142840396 DOI 10.1016/j.jelechem.2022.116978 Annotation Simple chemical modification of carbohydrates with complexes of sixvalent osmium and nitrogenous ligands (Os(VI)L) changes electro inactive carbohydrates to electroactive species. In this work we show that the type of the nitrogenous ligand (L) significantly influences adsorption of Os(VI)L-modified dextrans at a charged sur-face. Modification by mixture containing two ligands can improve electrochemical analysis in comparison to simple modification only with one ligand. For instance, modification with complexes of Os(VI) and mixture of N,N,N',N'-tetramethylethylenediamine (temed) with 2,2'-bipyridine (bipy) allows to (i) determine the con-centration of Os(VI)L modified dextran in one order higher range as in case of dextran modified only with Os (VI)temed and (ii) discriminate between various polysaccharides differing in building units and structures. Workplace Institute of Biophysics Contact Jana Poláková, polakova@ibp.cz, Tel.: 541 517 244 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/abs/pii/S1572665722009717?via%3Dihub
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