Investigation of electrochemical properties of FMN and FAD adsorbed on titanium electrode
(2003) In Bioelectrochemistry 61(1-2). p.39-49- Abstract
- The electrochemical properties (such as the values of the formal potentials, the dependence of the formal potentials on solution pH, the reversibility of the electrochemical process) of flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) adsorbed on a titanium electrode were dependent on the electrolyte. The formal potentials of adsorbed FMN and FAD in phosphate, HEPES and PIPES buffers at pH 7 were similar to those for dissolved flavins (−460 to −480 mV vs. SCE) and changed linearly with a slope of about 52 mV per pH unit in the pH region 3 to 8. In TRIS buffer, the formal potentials of adsorbed FMN and FAD were also pH-dependent, however, with invariance in the pH range 4.5 to 5.5. In non-buffered solutions (KCl, LiCl,... (More)
- The electrochemical properties (such as the values of the formal potentials, the dependence of the formal potentials on solution pH, the reversibility of the electrochemical process) of flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) adsorbed on a titanium electrode were dependent on the electrolyte. The formal potentials of adsorbed FMN and FAD in phosphate, HEPES and PIPES buffers at pH 7 were similar to those for dissolved flavins (−460 to −480 mV vs. SCE) and changed linearly with a slope of about 52 mV per pH unit in the pH region 3 to 8. In TRIS buffer, the formal potentials of adsorbed FMN and FAD were also pH-dependent, however, with invariance in the pH range 4.5 to 5.5. In non-buffered solutions (KCl, LiCl, NaCl, CsCl, CaCl2, Na2SO4 at different concentrations), the electrochemical behavior of adsorbed FMN and FAD differed from that of dissolved flavins and was dependent on the electrolyte (especially at pH 4.5 and pH 5). Under certain conditions (electrolyte, concentration, pH), a two-step oxidation of FMN could be observed (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/128903
- author
- Garjonyte, R ; Malinauskas, A and Gorton, Lo LU
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Cyclic voltammetry, Riboflavin, FAD, FMN, Adsorption, Titanium
- in
- Bioelectrochemistry
- volume
- 61
- issue
- 1-2
- pages
- 39 - 49
- publisher
- Elsevier
- external identifiers
-
- pmid:14642908
- wos:000187498800005
- scopus:0344552922
- ISSN
- 1878-562X
- DOI
- 10.1016/S1567-5394(03)00058-6
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)
- id
- 9d34efb2-f9dc-49fb-8ba3-ee3bbfcff164 (old id 128903)
- date added to LUP
- 2016-04-01 11:36:55
- date last changed
- 2022-01-26 07:37:35
@article{9d34efb2-f9dc-49fb-8ba3-ee3bbfcff164, abstract = {{The electrochemical properties (such as the values of the formal potentials, the dependence of the formal potentials on solution pH, the reversibility of the electrochemical process) of flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) adsorbed on a titanium electrode were dependent on the electrolyte. The formal potentials of adsorbed FMN and FAD in phosphate, HEPES and PIPES buffers at pH 7 were similar to those for dissolved flavins (−460 to −480 mV vs. SCE) and changed linearly with a slope of about 52 mV per pH unit in the pH region 3 to 8. In TRIS buffer, the formal potentials of adsorbed FMN and FAD were also pH-dependent, however, with invariance in the pH range 4.5 to 5.5. In non-buffered solutions (KCl, LiCl, NaCl, CsCl, CaCl2, Na2SO4 at different concentrations), the electrochemical behavior of adsorbed FMN and FAD differed from that of dissolved flavins and was dependent on the electrolyte (especially at pH 4.5 and pH 5). Under certain conditions (electrolyte, concentration, pH), a two-step oxidation of FMN could be observed}}, author = {{Garjonyte, R and Malinauskas, A and Gorton, Lo}}, issn = {{1878-562X}}, keywords = {{Cyclic voltammetry; Riboflavin; FAD; FMN; Adsorption; Titanium}}, language = {{eng}}, number = {{1-2}}, pages = {{39--49}}, publisher = {{Elsevier}}, series = {{Bioelectrochemistry}}, title = {{Investigation of electrochemical properties of FMN and FAD adsorbed on titanium electrode}}, url = {{http://dx.doi.org/10.1016/S1567-5394(03)00058-6}}, doi = {{10.1016/S1567-5394(03)00058-6}}, volume = {{61}}, year = {{2003}}, }