Ratiometric and colorimetric detection of hydrogen sulfide with high selectivity and sensitivity using a novel FRET-based fluorescence probe

Ratiometric and colorimetric detection of hydrogen sulfide with high selectivity and sensitivity using a novel FRET-based fluorescence probe
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使用基于 FRET 的新型荧光探针以高选择性和灵敏度对硫化氢进行比率和比色检测

DOI:
10.1016/j.dyepig.2015.03.007
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发表时间:
2015-07
期刊:
Dyes Pigment
影响因子:
--
通讯作者:
Zeng, Wenbin
Zeng, Wenbin
中科院分区:
其他
文献类型:
--
作者:
Liu, Zhiguo;Cao, Dongsheng;Hou, Jing;Zeng, Wenbin

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基于H_2S诱导的硫解反应和荧光共振能量转移过程,我们设计并合成了一种新型的比率比色荧光探针CR-DNP。它具有良好的光稳定性、选择性和灵敏度。此外,观察到显著的荧光增强(15倍)和明显的可见颜色变化(无色至亮橙子)。发光强度比与NaHS浓度之间具有良好的线性关系,表明该方法可以定量检测H2S,检测限低至0.4 μM。此外,由于其生物相容性,传感器可以很容易地渗透通过细胞膜和跟踪细胞内H2S水平的变化。
With recognition of the biological significance of H2S, we have designed and synthesized a novel ratiometric and colorimetric fluorescence probe, CR-DNP based on a H2S induced thiolysis reaction as well as the fluorescence resonance energy transfer process. It displayed some desirable properties, such as good photostability, high selectivity and excellent sensitivity. Also, a considerably fluorescence enhancement (15-fold) and distinct visible color change (colorless to bright orange) was observed. A good linear relationship between the emission intensity ratios and NaHS concentrations suggested that it can detect H2S quantitatively with a detection limit as low as 0.4 μM. Furthermore, due to its biocompatibility, the sensor could easily permeate through the cell membrane and trace the intracellular H2S levels change.
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期刊: --
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