BODIPY-derived piperazidine fluorescent near-neutral pH indicator and its bioimaging

被引:25
作者
Deng, Min
Yang, Chengduan
Gong, Deyan
Iqbal, Anam
Tang, Xiaoliang
Liu, Weisheng
Qin, Wenwu [1 ]
机构
[1] Lanzhou Univ, Coll Chem & Chem Engn, Key Lab Nonferrous Met Chem & Resources Utilizat, Lanzhou 730000, Peoples R China
基金
美国国家科学基金会;
关键词
BODIPY; Piperazine; Near-neutral pH; Biological cells; PHOTOPHYSICAL PROPERTIES; LASING PROPERTIES; DYES; DERIVATIVES; PROBES;
D O I
10.1016/j.snb.2016.04.003
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Two new 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) dyes (1 and 2) with piperazine subunits on position 3 or 5 were synthesized. Their absorption and steady-state fluorescence properties were investigated as a function of solvent. In water/MeCN (9:1, V/V) solution, the dyes show fluorescent enhancement upon increasing the acidity of the solution. They can be used in water/MeCN (9:1, V/V) solution as fluorescent pH probes excitable with visible light, with pK(a) values near-neutral (around 6.5 and 6.8). Dyes 1 and 2 are readily taken up by biological cells in the cytosol where it has no obvious toxic effects. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:492 / 498
页数:7
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