Národní úložiště šedé literatury Nalezeno 3 záznamů.  Hledání trvalo 0.01 vteřin. 
2D Condensation of 5-Fluorocytosine in Different Electrolytes
Fojt, Lukáš ; Fojta, Miroslav
Two-dimensional (2D) condensation and adsorption of 5-fluorocytosine on hanging mercury drop electrode in differnt electrolytes was investigated. We have used different sodium halide salts as basic electrolytes. The influence of electrolytes composition was displayed using differential capacitance measurements. Effects of ions present in used electolytes solution was remarkable. We observed huge change in 2D condensed layers in dependence on ions type.
Electrochemical Reduction and Oxidation of Nucleic Acids Bases and their Analogues: a Brief Overview
Fojta, Miroslav ; Špaček, Jan ; Dudová, Zdenka ; Pivoňková, Hana ; Daňhel, Aleš ; Fojt, Lukáš ; Havran, Luděk
Nucleic acids are known as electroactive biomacromolecules containing electrochemically reducible or oxidizable constituents. Nucleobases cytosine, 5-methylcytosine, adenine and guanine can be reduced in aqueous media on mercury or silver amalgam electrodes. Oxidation of all natural nucleic acids bases (in addition to the above mentioned ones, also uracil and thymine) was demonstrated using various types of carbon electrodes. Some of synthetic nucleobases or nucleotide analogues (e g., 7-deazapurines, cytidine analogues used as epigenetic modulators, etc.) exhibit specific electrochemical properties that differ from those of the parent bases and can be utilized to determine the given substance in the presence of natural nucleic acids or their components.
Electrochemical Investigation of Different Boron Cluster Compounds in Water-based Electrolytes
Fojt, Lukáš ; Vespalec, Radim ; Fojta, Miroslav ; Grüner, Bohumír
Boron cluster compounds (BCC) belongs to one or the proud sing compounds which ace used for medical treatment Their use for biochemical purposes is connected with use of water-based environments. Up to now, the BCC were predominantly characterized in non-aqueous milieus Therefore, we decided to undertake electrochemical research of BCC in water-based electrolytes. We have investigated several boron clusters with structures containing different number of vertexes (from 3 to 18), The structures were modified by endo- and exo- skeletal substituents. All used BCC were electrochemically active in broad potential region. which implies their possible use as biomarkers with tunable electrochemical response.

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