An ultrasensitive and preprocessing-free electrochemical platform for the detection of doxorubicin based on tryptophan/polyethylene glycol-cobalt ferrite nanoparticles modified electrodes

Abbasi M., Ezazi M., Jouyban A., Lulek E., Asadpour-Zeynali K., ERTAŞ Y. N., ...Daha Fazla

Microchemical Journal, cilt.183, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 183
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.microc.2022.108055
  • 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 detection, Unprocessed plasma patient samples, Doxorubicin, Biomedical analysis, Antifouling effect
  • Erciyes Üniversitesi Adresli: Evet

Özet

© 2022 Elsevier B.V.Doxorubicin (DOX) is an anticancer drug which can effectively inhibit the growth of cancer cells and aids the immune-mediated elimination of tumoral cells. Developing a new technique for analysis of DOX in clinical fluids is highly required. Here, a novel electrochemical sensor was designed using tryptophan (Trp)/(polyethylene glycol)PEGylated-CoFe2O4 nanoparticles to modify glassy carbon electrodes’ surface and was utilized to determine DOX in unprocessed human plasma samples. PEGylated-CoFe2O4 nanoparticles were coated on the surface of the glassy carbon electrode to provide the PEGylated-CoFe2O4/GCE probe. Under optimized conditions, the low limit of quantification (LLOQ) of the proposed sensor was 30 ng/mL and the linear ranges for the determination of DOX were 30 ng/mL to 1.0 μg/mL and 1.0 μg/mL to 5.0 μg/mL, respectively. PEG molecules provided an antifouling effect to prevent precipitation of the macromolecules on the surface of the fabricated electrode. Obtained results indicated that the suggested electrochemical sensor can be utilized for specific and sensitive determination of DOX in plasma samples.