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Binding abilities of copper to phospholipids and transport of oxalate
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SYSNO ASEP 0444181 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Binding abilities of copper to phospholipids and transport of oxalate Author(s) Jaklová Dytrtová, Jana (UOCHB-X) RID, ORCID
Jakl, M. (CZ)
Nováková, Kateřina (UFCH-W) RID
Navrátil, Tomáš (UFCH-W) RID, ORCID
Šádek, Vojtěch (UOCHB-X)Number of authors 5 Source Title Monatshefte fur Chemie. - : Springer - ISSN 0026-9247
Roč. 146, č. 5 (2015), s. 831-837Number of pages 7 s. Language eng - English Country AT - Austria Keywords copper cations ; dipalmitoylphosphatidylcholine (lecithin) ; ESI-MS ; impedance spectroscopy ; oxalic acid ; voltammetry ; membrane Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GP13-21409P GA ČR - Czech Science Foundation (CSF) GAP208/12/1645 GA ČR - Czech Science Foundation (CSF) Institutional support UOCHB-X - RVO:61388963 ; UFCH-W - RVO:61388955 UT WOS 000353219700013 EID SCOPUS 84939963695 DOI 10.1007/s00706-014-1385-4 Annotation Cu(II) creates complexes with dipalmitoylphosphatidylcholine (lecithin), which are detectable using electrospray ionization mass spectrometry. Lecithin (L) as a relatively big ligand prevents Cu(II) reduction to Cu(I) during the electrospray process. The detected complexes include (1) dications with a general formula: [Cu(L) (n) ](2+), where n prevails from 2 to 5 (in the m/z range from 50 to 2,000); and (2) monocations originated from the metal salt precursor [CuCl(L) (k) ](+) (k is 1 or 2). The Cu(II)/lecithin complexes are stable enough (appearance energy higher than 200 kJ mol(-1)) to utilize Cu(II) for stabilization of an artificial membrane. The impermeability of an artificial phospholipid membrane for oxalic acid and its complexes with copper ions in slightly acidic pH 5 was confirmed voltammetrically. However, adsorption of copper-oxalate complexes on the membrane surface was proved using electrochemical impedance spectroscopy. Workplace Institute of Organic Chemistry and Biochemistry Contact asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Viktorie Chládková, Tel.: 232 002 434 Year of Publishing 2016
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