Abstract
A fluorimetric sensor for dual and sensitive detection of Cd2+ ion and Cysteine (based on 2-picolylamine platform) was developed.The sensor was designed and synthesized by simple condensation method and characterized by using common spectroscopic methods. The observations made from the kinetics of absorption and emission profile shows that probe Pdac behaves as ‘‘ON–OFF’’ fluorescent quenching sensor for cadmium ions. The probe exhibit selectivity in fluorescence quenching behaviour over other competitive metal ions, and also the Pdac-Cd2+ ensemble behave as an efficient ‘‘OFF–ON’’ type sensor for an essential amino acid Cysteine. Moreover, this dual sensing nature of the sensor makes it successfully applied for the designing of a molecular keypad lock system.
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Acknowledgements
The Chairman, Department of chemistry, Aligarh Muslim University, Aligarh, and University Grants Commission (UGC ), India is acknowledged for providing necessary research facilities. The author, Atika Farhi is specially thankful to CSIR(Council of Scientific and Industrial Research) for awarding prestigious SRF(Senior Research Fellowship). The facilities given to the department under SAP-DRS-II PURSE and FIST programs are also highly acknowledged.
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F.F; Corresponding author : Supervision. A. F; First author: Idea, visualization, manuscript writing, experimental analysis, data collection. K. F; Second Author: Sample handling, Analysis and investigation.
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Farhi, A., Fatima, K. & Firdaus, F. Dual Fluorimetric Sensor for Tandem Detection of Cadmium and Cysteine: An Approach for Designing a Molecular Keypad Lock System. J Fluoresc (2024). https://doi.org/10.1007/s10895-024-03588-x
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DOI: https://doi.org/10.1007/s10895-024-03588-x