Journal
JOURNAL OF FLUORESCENCE
Volume 32, Issue 2, Pages 549-558Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10895-021-02875-1
Keywords
Fluorescence; Doped carbon dots; Cetirizine; Deep eutectic solvent; Antibacterial activity
Ask authors/readers for more resources
Two solvents, deep eutectic and water/deep eutectic solvents, were used for the preparation of N-doped carbon dots (N-CDs) in this study. It was found that the solvent type can affect the properties of the carbon dots. These N-CDs can be utilized as highly sensitive fluorescent probes for the determination of Fe3+ ion and cetirizine. Additionally, the N-CDs showed good performance in terms of linear range and detection limit for cetirizine.
In this study, two solvents (deep eutectic and water/deep eutectic solvents) were used for N-doped carbon dots (N-CDs) preparation by microwave irradiation. The solvent can influence surface chemical composition, quantum yield, morphology, and fluorescence of CDs. N-CDs synthesized in water/deep eutectic solvent (DES) had better quantum yield (24.5%) with respect to N-CDs synthesized in deep eutectic solvent (17.4%). These carbon dots were used as a rapid and high sensitive off-on fluorescent probe for the determination of Fe3+ ion and cetirizine. Morphology and structure of the N-CDs were characterized by FT-IR, UV-Vis, XRD and TEM. Linear range and detection limit for N-CDs synthesis in deep eutectic solvent for cetirizine were 0.08-48 mu M and 15 nM, respectively and for N-CDs synthesis in water/deep eutectic solvent were 0.03-50 mu M and 10 nM, respectively. Applicability of this nanoprobe was tested in cetirizine determination in serum sample. Antibacterial activities of the two synthesized N-CDs were also investigated using agar disk diffusion method.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available