On the analysis of adsorption behaviour of some biologically
active substances of electrodes

D 2002

On the analysis of adsorption behaviour of some biologically active substances of electrodes

DRAŽAN, Viktor

Základní údaje

Originální název

On the analysis of adsorption behaviour of some biologically active substances of electrodes

Autoři

DRAŽAN, Viktor (203 Česká republika, garant)

Vydání

Třešť, 35 th Heyrovský Discussion togrther with the 6 th International Microsymposium on Electrochemical Impedance Analysis. Abstracts, s. 3-3, 2002

Nakladatel

ČSAV

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Klíčová slova anglicky

two-dimensional condensation; adsorption of nucleic acid components;

Štítky

two-dimensional condensation

Změněno: 30. 1. 2003 18:10, prof. RNDr. Vladimír Vetterl, DrSc.

Anotace

V originále

Mercury drop electrode is most suitable metal electrode for the study of adsorption and nucleation/growth processes. With SMDE it is very easy to achieve clean and ideally smooth electrode surface at given potential within voltammetric potential range. This could be utilised for extensive adsorption study using potential step technique. Most suitable method is the measurement of the dependence of electrode impedance on DC potential and time after potential step. The main advantage of this method is, that it is sensitive to the state of adsorbed layer. An application of relatively simple model on the experimental data could give information about the adsorption mechanism (kinetics measurement) and interaction parameters of molecules on the surface. Solid metal electrodes are attractive because most of those are not toxic and are mechanically stable. On the other side it is not possible to achieve surface quality (smoothness, cleanness) similar to mercury droplet and renew the surface under given potential is also very problematic. High surface roughness introduces so-called "geometrical factor" in electrode impedance and makes the analysis of data much more complicated. Therefore together with impedance, other voltammetric techniques are used. Most of them are sensitive to the change of the state of adsorbed layer. They are especially suitable for the study of fast processes with charged molecules.

Návaznosti

GA203/00/P081, projekt VaV

Název: Adsorpce bází nukleových kyselin a jejich derivátů na elektrodách

GV204/97/K084, projekt VaV

Název: Elektrody modifikované nukleovými kyselinami a bílkovinami. Nové nástroje v biochemickém a biomedicínském výzkumu

Investor: Grantová agentura ČR, Elektrody modifikované nukleovými kyselinami a bílkovinami. Nové nástroje v biochemickém a biomedicínském výzkumu

IAA4004002, projekt VaV

Název: Struktura a interakce nukleových kyselin a polypeptidů na površích kovů

Investor: Akademie věd ČR, Struktura a interakce nukleových kyselin a polypeptidů na površích kovů

IBS5004107, projekt VaV

Název: Aplikace biofyzikálních metod v biotechnologické a klinické praxi

Investor: Akademie věd ČR, Aplikace biofyzikálních metod v biotechnologické praxi

Citovat

DRAŽAN, Viktor. On the analysis of adsorption behaviour of some biologically active substances of electrodes. In 35 th Heyrovský Discussion togrther with the 6 th International Microsymposium on Electrochemical Impedance Analysis. Abstracts. Třešť: ČSAV, 2002, s. 3.

@inproceedings{484021,
   author = {Dražan, Viktor},
   address = {Třešť},
   booktitle = {35 th Heyrovský Discussion togrther with the 6 th International Microsymposium on Electrochemical Impedance Analysis. Abstracts},
   keywords = {two-dimensional condensation; adsorption of nucleic acid components;},
   language = {eng},
   location = {Třešť},
   pages = {3-3},
   publisher = {ČSAV},
   title = {On the analysis of adsorption behaviour of some biologically active substances of electrodes},
   year = {2002}
}

TY  - JOUR
ID  - 484021
AU  - Dražan, Viktor
PY  - 2002
TI  - On the analysis of adsorption behaviour of some biologically active substances of electrodes
PB  - ČSAV
CY  - Třešť
KW  - two-dimensional condensation
KW  - adsorption of nucleic acid components;
N2  - Mercury drop electrode is most suitable metal electrode for the study of adsorption and nucleation/growth processes. With SMDE it is very easy to achieve clean and ideally smooth electrode surface at given potential within voltammetric potential range. This could be utilised for extensive adsorption study using potential step technique. Most suitable method is the measurement of the dependence of electrode impedance on DC potential and time after potential step. The main advantage of this method is, that it is sensitive to the state of adsorbed layer. An application of relatively simple model on the experimental data could give information about the adsorption mechanism (kinetics measurement) and interaction parameters of molecules on the surface. Solid metal electrodes are attractive because most of those are not toxic and are mechanically stable. On the other side it is not possible to achieve surface quality (smoothness, cleanness) similar to mercury droplet and renew the surface under given potential is also very problematic. High surface roughness introduces so-called "geometrical factor" in electrode impedance and makes the analysis of data much more complicated. Therefore together with impedance, other voltammetric techniques are used. Most of them are sensitive to the change of the state of adsorbed layer. They are especially suitable for the study of fast processes with charged molecules.
ER  -

DRAŽAN, Viktor. On the analysis of adsorption behaviour of some biologically active substances of electrodes. In \textit{35 th Heyrovský Discussion togrther with the 6 th International Microsymposium on Electrochemical Impedance Analysis. Abstracts}. Třešť: ČSAV, 2002, s.~3.

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