Kazan (Volga region) Federal University, KFU
KAZAN
FEDERAL UNIVERSITY
 
LAYER-BY-LAYER COMBINATION OF MWCNTS AND POLY(FERULIC ACID) AS ELECTROCHEMICAL PLATFORM FOR HESPERIDIN QUANTIFICATION
Form of presentationArticles in international journals and collections
Year of publication2023
Языканглийский
  • Ziyatdinova Guzel Kamilevna, author
  • Mukharlyamova Aysylu , author
  • Ficev Igor , author
  • Yakupova Elvira Nailevna, postgraduate kfu
  • Bibliographic description in the original language Yakupova, E. Layer-by-layer combination of MWCNTs and poly(ferulic acid) as electrochemical platform for hesperidin quantification / E. Yakupova, A. Mukharlyamova, I. Fitsev, G. Ziyatdinova // Biosensors. – 2023. – V. 13. – № 5.- Article 500. – 19 p.
    Annotation The electrochemical polymerization of suitable monomers is a powerful way to create voltammetric sensors with improved responses to a target analyte. Nonconductive polymers based on phenolic acids were successfully combined with carbon nanomaterials to obtain sufficient conductivity and high surface area of the electrode. Glassy carbon electrodes (GCE) modified with multi-walled carbon nanotubes (MWCNTs) and electropolymerized ferulic acid (FA) were developed for the sensitive quantification of hesperidin. The optimized conditions of FA electropolymerization in basic medium (15 cycles from −0.2 to 1.0 V at 100 mV s−1 in 250 ?mol L−1 monomer solution in 0.1 mol L−1 NaOH) were found using the voltammetric response of hesperidin. The polymer-modified electrode exhibited a high electroactive surface area (1.14 ? 0.05 cm2 vs. 0.75 ? 0.03 and 0.089 ? 0.003 cm2 for MWCNTs/GCE and bare GCE, respectively) and decreased in the charge transfer resistance (21.4 ? 0.9 kΩ vs. 72 ? 3 kΩ for bare GCE). Under optimized conditions, hesperidin linear dynamic ranges of 0.025–1.0 and 1.0–10 ?mol L−1 with a detection limit of 7.0 nmol L−1 were achieved, which were the best ones among those reported to date. The developed electrode was tested on orange juice and compared with chromatography.
    Keywords Voltammetric sensors, chemically modified electrodes, carbon nanomaterials, electropolymerization, phenolic acids, flavanones, hesperidin
    The name of the journal Biosensors
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160299774&doi=10.3390%2fbios13050500&partnerID=40&md5=faced03c873b2d1bad905acc7906ada0
    Please use this ID to quote from or refer to the card https://repository.kpfu.ru/eng/?p_id=282385&p_lang=2

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