Characterization of a Hg(2+)-Selective Fluorescent Probe Based on Rhodamine B and Its Imaging in Living Cells.

Characterization of a Hg(2+)-Selective Fluorescent Probe Based on Rhodamine B and Its Imaging in Living Cells.
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DOI:
10.3390/molecules26113385
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发表时间:
2021-06-03
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
Zhang J
Zhang J
中科院分区:
其他
文献类型:
--
作者:
Zhang W;Yu C;Yang M;Wen S;Zhang J

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合成了一种有机小分子P,并表征了其作为Hg2+的荧光和比色双峰探针。详细研究了该探针对Hg2+的传感特性。在乙醇-水溶液(8:2,v/v,20 mM HEPES,pH 7.0)中,Hg2+对P有明显的比色变化,在583 nm处有明显的荧光增强特性(~gt;30倍),这有助于制备具有“肉眼”和荧光检测功能的Hg2+选择性探针。细胞实验结果表明,P具有较低的细胞毒性和良好的生物相容性,可用于活体细胞内Hg2+的成像。
A small organic molecule P was synthesized and characterized as a fluorometric and colorimetric dual-modal probe for Hg2+. The sensing characteristics of the proposed probe for Hg2+ were studied in detail. A fluorescent enhancing property at 583 nm (>30 fold) accompanied with a visible colorimetric change, from colorless to pink, was observed with the addition of Hg2+ to P in an ethanol-water solution (8:2, v/v, 20 mM HEPES, pH 7.0), which would be helpful to fabricate Hg2+-selective probes with “naked-eye” and fluorescent detection. Meanwhile, cellular experimental results demonstrated its low cytotoxicity and good biocompatibility, and the application of P for imaging of Hg2+ in living cells was satisfactory.
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