A Novel Rhodamine B Derivative as a "Turn-on" Fluorescent Sensor for Cu2+ with High Selectivity and Sensitivity

被引：0
|
作者：
Liu, Li [1 ]
Zhou, Tao [2 ]
Li, Yawen [2 ]
Li, Tianrong [2 ]
机构：
[1] Ctr Inspect Gansu Drug Adm, Ctr Vaccine Inspect Gansu, Lanzhou 730030, Peoples R China
[2] Lanzhou Univ, Sch Mat & Energy, Lanzhou 730030, Peoples R China
来源：
JOURNAL OF FLUORESCENCE | 2024年
关键词：
Monitoring Cu2+; Fluorescent sensor; Rhodamine B; Turn-on; AQUEOUS-SOLUTION; CHEMOSENSOR; PROBES; EMISSION; IONS;
D O I：
10.1007/s10895-024-03977-2
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
The number of "turn-on" fluorescent probes for Cu2+ is relatively limited, and interference from other metal cations presents a significant challenge for these sensors. In this study, we synthesized and characterized a rhodamine B-based sensor, designated as RBHP, using 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP) and rhodamine B hydrazide. Selectivity, sensitivity, solvent effects, water content, and pH of RBHP in relation to Cu2+ were conducted. RBHP exhibited an exceptionally low fluorescence background signal in acetonitrile and demonstrated a "turn-on" fluorescent response to Cu2+. The PMBP-based acylhydrazone moiety and acetonitrile as the detection solvent are crucial for the selective detection. RBHP shows potential as a highly selective and sensitive fluorescent sensor for Cu2+.
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页数：10
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