Study of redox processes on polymeric modified screen printed electrode using elimination voltammetry

GALANDOVÁ, J., Radka MIKELOVÁ, Libuše TRNKOVÁ and J. LABUDA. Study of redox processes on polymeric modified screen printed electrode using elimination voltammetry. In Sborník příspěvků VII. Pracovního setkání fyzikálních chemiků a elektrochemiků. Brno: Masarykova universita, 2007, p. 44-45. ISBN 9788021042353.

Basic information

• Original name: Study of redox processes on polymeric modified screen printed electrode using elimination voltammetry
• Name in Czech: Studium redoxnich procesů na polimerem modifikované screen printed elektrodě s využitím eliminační voltametrie
• Authors: GALANDOVÁ, J. (703 Slovakia), Radka MIKELOVÁ (203 Czech Republic), Libuše TRNKOVÁ (203 Czech Republic, guarantor) and J. LABUDA (703 Slovakia).
• Edition: Brno, Sborník příspěvků VII. Pracovního setkání fyzikálních chemiků a elektrochemiků, p. 44-45, 2 pp. 2007.
• Publisher: Masarykova universita

Other information

• Original language: English
• Type of outcome: Proceedings paper
• Field of Study: 10405 Electrochemistry
• Country of publisher: Czech Republic
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14310/07:00019385
• Organization unit: Faculty of Science
• ISBN: 9788021042353
• Keywords in English: Elimination voltammetry; redox processes; polymeric modified screen printed electrode
• Tags: Elimination voltammetry, redox processes

Abstract

In the last time various new modified electrodes were developed and used as DNA biosensors. One of the general knowledge is focused on new types of screen-printed electrodes (SPE). Due to their specific behavior and ultimate applications as biosensors, the characterization of surfaces of SPE and the electrochemical processes speak on these electrodes need to be conceived. Besides common electrochemical methods the elimination voltammetry with linear scan (EVLS) is able to contribute to the electrochemical study of SPE features. The EVLS can be considered as a mathematical model utilizing linear sweep or cyclic voltammetry results to eliminate some selected particular currents from total voltammetric current and therefore it is capable to discover the rate determining step process or to characterize the influence of modified electrode surface on electrode processes. The elimination of selected particular currents and conservation the other ones is achieved by an elimination function formed from the total currents measured at different scan rates. The EVLS procedure eliminating kinetic and capacitive currents and conserving the diffusion current is very sensitive to the changes of electrode surfaces. In recently published papers it has been shown that this EVLS function is widely disposal in many electrochemical systems. In this work we attempt to apply the EVLS in the study of the novel screen-printed sensor modified not only by polysaccharide - chitosan (CHIT), but also by chitosan-multiwalled carbon nanotubes (MWNT) matrix

Abstract (in Czech)

Studium redoxnich procesů na polimerem modifikované screen printed elektrodě s využitím eliminační voltametrie

Links

• IAA100040602, research and development project: Name: Nové přístupy v elektrochemické analýze nukleových kyselin a oligonukleotidů zaměřené na ultrasensitivní mikrodetekci DNA a detekci DNA hybridizace.

Investor: Academy of Sciences of the Czech Republic, New approaches in electrochemical analysis of nucleic acids and oligonucleotides aimed at a ultrasensitive microdetection of DNA and DNA hybridization

• LC06035, research and development project: Name: Centrum biofyzikální chemie, bioelektrochemie a bioanalýzy. Nové nástroje pro genomiku, proteomiku a biomedicínu.

Investor: Ministry of Education, Youth and Sports of the CR, Centre of Biophysical Chemistry, Bioelectrochemistry and Bioanalysis. New Tools for Genomics, Proteomics and Biomedicine

• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)