Affordable and sensitive dopamine detection using CeS:BaMoO-modified 3D-printed electrodes
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, cilt.37, sa.26, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 37 Sayı: 26
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s10854-026-18454-8
- Dergi Adı: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Compendex, INSPEC, MEDLINE, Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Recep Tayyip Erdoğan Üniversitesi Adresli: Evet
Özet
The development of affordable and scalable electrochemical sensors remains a major challenge for practical dopamine detection. In this study, a low-cost and sensitive sensing platform was developed by integrating a Ce2S3:BaMoO4 nanocomposite with 3D-printed PLA/carbon black electrodes. The composite was successfully synthesized via a co-precipitation method and characterized using XRD, SEM, SEM-EDS, and UV-Vis analyses, confirming its phase purity, hierarchical morphology, and semiconducting behavior (Eg = 3.48 eV). Electrochemical characterization revealed that Ce2S3:BaMoO4 modification significantly enhances electron transfer kinetics and reduces charge transfer resistance, resulting in improved electrochemical activity. The fabricated sensor exhibited a linear response toward dopamine in the range of 5-1000 & micro;M, with a limit of detection of 3.90 & micro;M and a sensitivity of 0.063 mu A/& micro;M. In addition, the sensor demonstrated good selectivity, reproducibility, and operational stability. Although the detection limit is higher than that of some advanced nanomaterial-based sensors, the proposed system offers a distinct advantage in terms of fabrication cost and simplicity, with each 3D-printed electrode produced at approximately $0.03. This significant reduction in cost, combined with reliable sensing performance, highlights the potential of the platform for disposable and large-scale applications. Overall, this work demonstrates that the combination of low-cost additive manufacturing and functional nanocomposites provides a practical and scalable approach for electrochemical sensing, paving the way for accessible dopamine detection technologies.