Казанский (Приволжский) федеральный университет, КФУ
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ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ
 
DISPOSABLE ELECTROCHEMICAL BIOSENSOR WITH MULTIWALLED CARBON NANOTUBES - CHITOSAN COMPOSITE LAYER FOR THE DETECTION OF DEEP DNA DAMAGE
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2008
Языканглийский
  • Зиятдинова Гузель Камилевна, автор
  • Galandova Julia , автор
  • Labuda Jan , автор
  • Библиографическое описание на языке оригинала Galandova, J.Disposable electrochemical biosensor with multiwalled carbon nanotubes - Chitosan composite layer for the detection of deep DNA damage / J. Galandova, G. Ziyatdinova, J. Labuda // Anal. Sci. - 2008. - V. 24. - No. 6. - P. 711-716.
    Аннотация A novel electrochemical DNA-based biosensor for the detection of deep DNA damage was designed employing the bionanocomposite layer of multiwalled carbon nanotubes (MWNT) in chitosan (CHIT) deposited on a screen printed carbon electrode (SPCE). The biocomponent represented by double-stranded (ds) herring sperm DNA was immobilized on this composite using layer-by-layer coverage to form a robust film. Individual and complex electrode modifiers are characterized by a differential pulse voltammetry (DPV) with the DNA redox marker [Co(phen)3]3+, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) with [Fe(CN)6]3? as a redox probe in a phosphate buffer solution (PBS). A good correlation between the CV and EIS parameters has been found. Differences between the CV and EIS signals of the electrodes without and with DNA are used to detect deep damage to DNA, advantageously using simple working procedures in the same experiment.
    Ключевые слова Electrochemical impedance spectroscopy, multiwalled carbon nanotubes, chitosan, DNA electrochemical biosensor, DNA damage
    Название журнала Analytical Sciences
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-49749146402&partnerID=40&md5=a53949e16b8cc8da0efec92020659503
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