Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
GLASSY CARBON ELECTRODE MODIFIED WITH SILVER NANODENDRITES IMPLEMENTED IN POLYLACTIDE-THIACALIX[4]ARENE COPOLYMER FOR THE ELECTROCHEMICAL DETERMINATION OF TRYPTOPHAN
Form of presentationArticles in international journals and collections
Year of publication2018
Языканглийский
  • Evtyugin Gennadiy Arturovich, author
  • Porfireva Anna Veniaminovna, author
  • Stoykov Ivan Ivanovich, author
  • Bibliographic description in the original language Porifreva A.V. Glassy carbon electrode modified with silver nanodendrites implemented in polylactide-thiacalix[4]arene copolymer for the electrochemical determination of tryptophan [Text] / A.V.Porfireva, V.V. Gorbatchuk, V.G. Evtugyn, I.I.Stoikov, G.A.Evtugyn // Electroanalysis. - 2018. - V.30. - P.641-649 .
    Annotation Glassy carbon electrode was modified by new polymeric materials obtained from oligolactides by cross-linking with tetracarboxylated thiacalix[4]arene in cone, partial cone and 1,3-alternate configurations and then silver was deposited by potential cycling in the pores of the polymer film. The modified electrode showed highly sensitive and selective signal toward tryptophan. The role of macrocycle configuration and conditions for Ag nanodendrites formation are described. Granulation of the polymer films caused by the macrocycles improves both the conditions for silver deposition and tryptophan determination. The electrochemical sensor developed makes it possible to determine from 0.1 to 100 mM of tryptophan with the limit of detection down to 0.03 mM. No interference with oxidation of other amino acids (phenylalanine, histidine, cysteine and tyrosine) was found.
    Keywords electrochemical sensor, voltammtetry, tryptophan determination, silver nanoparticles, polymer film
    The name of the journal ELECTROANALYSIS
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85037365394&doi=10.1002%2felan.201700638&partnerID=40&md5=0f57b4687be6d30a983b28805ddc8d97
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=171906&p_lang=2

    Full metadata record