A novel coumarin-benzopyrylium based near-infrared fluorescent probe for Hg2+ and its practical applications

被引：17
作者：
Lv, Hongshui [1 ]
Sun, Haiyan [1 ]
机构：
[1] Qilu Univ Technol, State Key Lab Biobased Mat & Green Papermaking, Shandong Acad Sci, Jinan 250353, Peoples R China
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2022年 / 267卷
关键词：
Ratiometric; NIR; Hg2+; Food analysis; Bioimaging; RAPID DETECTION; IN-VIVO; IONS; MERCURY; CHEMODOSIMETER; MICE;
D O I：
10.1016/j.saa.2021.120527
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A novel colorimetric and ratiometric NIR fluorescent probe for Hg2+ was designed and synthesized based on a coumarin-benzopyrylium platform. The ring-open form of the probe exhibits NIR absorption (670 nm) and emission (720 nm). The probe shows high sensitivity, high selectivity and rapid response (30 s) to Hg2+. The detection limit was as low as 6.94 nM. The probe shows high stability in a wide pH range from 2 to 10. Moreover, the probe can be employed for detecting Hg2+ in food and biological samples. (C) 2021 Elsevier B.V. All rights reserved.
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页数：8
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