Highly Sensitive and Selective Detection of Hg2+ ions and Antibacterial Activity Using a Schiff-base Derivative

被引：0
作者：
Alnajeebi, Afnan M. [1 ]
Yahya, Rana [2 ]
Shafie, Alaa [3 ]
Ashour, Amal Adnan [4 ]
Felemban, Mohammed Fareed [5 ]
Tayeb, Faris J. [6 ]
机构：
[1] Univ Jeddah, Coll Sci, Dept Biochem, Jeddah, Saudi Arabia
[2] Univ Jeddah, Coll Sci, Dept Chem, Jeddah, Saudi Arabia
[3] Taif Univ, Dept Clin Labs Sci, Coll Appl Med Sci, POB 11099, Taif 21944, Saudi Arabia
[4] Taif Univ, Fac Dent, Dept Oral & Maxillofacial Surg & Diagnost Sci, POB 11099, Taif 21944, Saudi Arabia
[5] Taif Univ, Fac Dent, Dept Maxillofacial Surg & Diagnost Sci, POB 11099, Taif 21944, Saudi Arabia
[6] Univ Tabuk, Fac Appl Med Sci, Dept Med Lab Technol, Tabuk, Saudi Arabia
来源：
JOURNAL OF FLUORESCENCE | 2024年
关键词：
Schiff-base; Chemosensor; Turn-on; PET; Complex; Biomedical Applications; FLUORESCENCE; CHEMOSENSOR; COMPLEXES; LIGANDS;
D O I：
10.1007/s10895-024-04070-4
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
A simple and highly effective Schiff-base fluorescent chemosensor (S1) was synthesized and characterized by 1HNMR and fluorescence spectroscopy. The synthesized chemosensor was applied for the selective and sensitive detection of Hg2+ ions. The chemosensor exhibited a strong 'turn-on' fluorescence response in a CH3OH/H2O (1:9, v/v) solution due to complex formation (S1-Hg2+) which block photo induce electron transfer (PET). The chemosensor showed significant sensitivity with very low detection limit of 2.0 ppb, making it suitable for trace-level Hg2+ detection. Furthermore, the S1-Hg2+ complex demonstrated excellent antibacterial activity against various Gram-positive and Gram-negative bacterial strains, broadening its utility beyond sensing. This dual-functional system offers significant potential in environmental and biomedical applications.
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页数：14
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