期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 274, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2022.121096
关键词
Hydrazine; Fluorescent probe; Ratiometric; Large Stokes shift; Emission shift
类别
资金
- National Natural Science Foun-dation of China [21907110]
- Natural Science Foundation of Hunan Province, China [2020JJ5695]
- Fundamental Research Funds for the Central Universities of Central South University [2020zzts405]
- Basic Research Foundation of Shenzhen Science and Technology Innovation [JCYJ20190806144605441]
A ratiometric fluorescent probe MA-N2H4 was developed for simple and convenient detection of hydrazine (N2H4) in environmental and biological systems. The probe exhibited a significant blue-shifted emission and a rapid increase in fluorescent intensity ratio after treatment with N2H4, allowing for fast detection. Additionally, the probe was successfully used for tracking N2H4 in living cells and zebrafish.
As a highly toxic reagent, hydrazine (N2H4) is notorious to human beings and the environment. To simply and conveniently detect N2H4 in environmental and biological systems, a ratiometric fluorescent probe MA-N2H4 was developed with excellent sensitivity and selectivity. Probe MA-N2H4 was readily prepared based on a naphthalene as the fluorescent scaffold and an indanedione group as the responsive moiety for N2H4. This probe displayed a red-emitting fluorescence at 670 nm with a large Stokes shift (200 nm). After treatment with N2H4, a significant blue-shifted emission at 440 nm could be observerd, which led to an extremely large emission wavelength shift (230 nm). The fluorescent intensity ratio (I-440/I-670) of probe MA-N2H4 was rapidly and significantly increased (273-fold) within 18 min. The detection limit for N2H4 was 0.5 mM. In addition, the probe was successfully employed for tracking N2H4 in living cells and zebrafish through a ratiometric manner. (c) 2022 Elsevier B.V. All rights reserved.
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