Design of an electrochemical sensing platform based on MoS2-PEDOT:PSS nanocomposite for the detection of epirubicin in biological samples

Er E., Ateş A. K.

Microchemical Journal, cilt.189, 2023 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 189
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1016/j.microc.2023.108534
  • Dergi Adı: Microchemical Journal
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Food Science & Technology Abstracts, Index Islamicus, Veterinary Science Database
  • Anahtar Kelimeler: Electrochemical sensor, Epirubicin, MoS2, PEDOT:PSS, Surface modification
  • Ankara Üniversitesi Adresli: Evet

Özet

Synthesizing of two dimensional (2D)-based nanomaterial and its sensing platform design is an attractive approach for quantitative purposed electrochemical applications. In this work, for the first time, we synthesized the molybdenum disulphide (CE-MoS2) nanosheets exfoliated by metal intercalation method and followed by the modification of their surfaces with Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) as a conductive polymer. The structural, morphological, and electrochemical characterization of CE-MoS2/PEDOT:PSS nanocomposite were performed by XPS, TGA, TEM and EIS. The portable electrochemical sensing platform was fabricated by the modification of CE-MoS2/PEDOT:PSS nanocomposite on screen-printed carbon electrode (SPCE). The electrochemical behaviour of epirubicin (EPB) was examined on SPCE modified with CE-MoS2/PEDOT:PSS nanocomposite using cyclic and differential pulse voltammetry. CE-MoS2/PEDOT:PSS/SPCE demonstrated a promising electrocatalytic activity towards the oxidation of EPB, and analytical performance in the concentration range of 0.06 – 9.30 µM with a low detection limit of 44.3 nM. The human plasma samples containing EPB were successfully analyzed using CE-MoS2/PEDOT:PSS/SPCE with the satisfactory recoveries. The proposed sensing design could be an alternative strategy to produce the 2D-based nanoplatforms for electroanalytical applications in clinical samples.