A Fluorescent Probe Based on the Hydrazone Schiff Base for the Detection of Zn 2+ and its Application on Test Strips.

Autor: Xu G; College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou, 571158, China., Ma SJ; College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou, 571158, China., Zhang HH; College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou, 571158, China., Jing J; College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou, 571158, China., Chen XH; College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China., Zhang XP; College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment & Resource Reuse of Hainan Province, Hainan Normal University, Haikou, 571158, China. zxp_inorganic@126.com.
Jazyk: angličtina
Zdroj: Journal of fluorescence [J Fluoresc] 2023 May; Vol. 33 (3), pp. 1183-1189. Date of Electronic Publication: 2023 Jan 09.
DOI: 10.1007/s10895-022-03140-9
Abstrakt: A novel fluorescent probe SHK for Zn 2+ detection was designed based on the hydrazone Schiff base, successfully synthesized by Suzuki coupling and condensation reactions. The probe SHK in DMSO/H 2 O showed extremely weak fluorescence. However, the solution exhibited an intensive yellow-green emission with the introduction of Zn 2+ . In contrast, negligible fluorescence change was observed when other metal ions were added, suggesting a high selectivity of SHK for Zn 2+ detection. The Job's Plot analysis revealed that a 1:1 stoichiometric adduct SHK-Zn 2+ formed during the Zn 2+ sensing. The binding constant of the complex was determined to be 184 M - 1 , and the detection limit for Zn 2+ was calculated to be 112 µM. Moreover, the probe SHK achieved selective fluorescence sensing for Zn 2+ on test strips, which guaranteed its practical application prospect.
(© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE