Development of a MOF-based electrochemical sensor for trace detection of cannabidiol in biological, environmental, and plant-derived samples

Bouali M., Bugday N., Bouali W., ERK N., Duygulu Ö., Demirdogen R. E., ...Daha Fazla

Electrochimica Acta, cilt.541, 2025 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 541
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.electacta.2025.147373
  • Dergi Adı: Electrochimica Acta
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Biological samples, Electrochemical sensor, Environmental analysis, Green chemistry, MOF-808
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The accurate determination of cannabidiol (CBD) is of growing importance due to its expanding therapeutic applications, legal regulation requirements, and the need for reliable quality control in biological, environmental, and plant-derived products. In this study, a novel electrochemical sensor based on a MOF-808-modified glassy carbon electrode (MOF-808/GCE) was developed for the sensitive and selective detection of cannabidiol (CBD). The sensor leveraged the high surface area and active sites of MOF-808, which incorporates six monotopic formate ligands, to enhance electrochemical performance. Using differential pulse voltammetry (DPV), the sensor demonstrated a wide linear range (0.02–5.0 μM), excellent correlation (R² = 0.997), and a low detection limit of 0.005 μM. The modified electrode exhibited outstanding repeatability (RSD = 2.0 %) and reproducibility (RSD = 1.4 %). Interference studies confirmed high selectivity against common electroactive species. The sensor was successfully applied to determine CBD in complex real-world matrices, including human plasma, urine, lake and tap water, and Cannabis sativa extracts, with recoveries ranging from 98.38 % to 102.4 %. These results establish the MOF-808/GCE sensor as a robust and efficient tool for trace-level CBD analysis in biological, environmental, and plant-based samples.