A “turn-on” small molecule fluorescent sensor for the determination of Al3+ion in real samples: theoretical calculations, and photophysical and electrochemical properties
New Journal of Chemistry, cilt.45, sa.39, ss.18400-18411, 2021 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 45 Sayı: 39
- Basım Tarihi: 2021
- Doi Numarası: 10.1039/d1nj03462f
- Dergi Adı: New Journal of Chemistry
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Compendex, EMBASE, DIALNET
- Sayfa Sayıları: ss.18400-18411
- Sağlık Bilimleri Üniversitesi Adresli: Evet
Özet
Aluminum, one of the most plentiful metal ions on Earth, demonstrates toxic effects after excessive accumulation in the environment and human bodies because it is a non-essential element for living organisms. Therefore, strict limits on Al3+intake by humans have been proposed by the EPA and WHO. In the current study, ultrasound sonication was used for the green synthesis of the naphthalene-based acetohydrazide derivative (3), and it was used as a fluorescent sensor in order to determine the levels of Al3+ions in real samples. Theoretical calculations were carried out and the photophysical and electrochemical properties of3were deeply investigatedviaDFT; steady-state fluorescence, UV-vis absorption, time-resolved fluorescence, and 3D-fluorescence spectroscopy; excitation-emission matrix (EEM) analysis; and CV and SWV measurements. The fluorescent sensor investigations demonstrated that3can sensitively and selectively detect Al3+ionsviaa “turn-on” fluorescence response, which is based on the inhibition of PET and ESIPT processes with a synergistic effect from CHEF. The optimal conditions with regards to the initial sensor concentration, pH, selectivity, and interaction time were determined for the detection of Al3+ions. The linear working range and detection limit for Al3+ions were calculated to be 1.00-20.00 μmol L−1and 0.34 μmol L−1, respectively. Method validation was examinedviathe analysis of a certified reference material (CRM-TMDW-500), and spike/recovery testing and spectrofluorimetric analysis of Al3+ions in drinking water, seawater, and urine samples were successfully carried out using3. Importantly,3-capped paper-based test strips were developed for the practical analysis and monitoring of Al3+ions in the field. According to the obtained results, the presented detection technique, which is based on a “turn-on” fluorescence response change of3, can be applied to the highly sensitive, facile, reliable, and fast determination of Al3+ions in real samples.