Казанский (Приволжский) федеральный университет, КФУ
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ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ
 
LAYER-BY-LAYER COMBINATION OF MWCNTS AND POLY(FERULIC ACID) AS ELECTROCHEMICAL PLATFORM FOR HESPERIDIN QUANTIFICATION
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2023
Языканглийский
  • Зиятдинова Гузель Камилевна, автор
  • Мухарлямова Айсылу , автор
  • Фицев Игорь , автор
  • Якупова Эльвира Наилевна, автор
  • Библиографическое описание на языке оригинала 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.
    Аннотация 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.
    Ключевые слова Voltammetric sensors, chemically modified electrodes, carbon nanomaterials, electropolymerization, phenolic acids, flavanones, hesperidin
    Название журнала Biosensors
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160299774&doi=10.3390%2fbios13050500&partnerID=40&md5=faced03c873b2d1bad905acc7906ada0
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