A pH tuning single fluorescent probe based on naphthalene for dual-analytes (Mg(2+) and Al(3+)) and its application in cell imaging.

A pH tuning single fluorescent probe based on naphthalene for dual-analytes (Mg(2+) and Al(3+)) and its application in cell imaging.
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基于萘的双分析物(Mg(2)和Al3)pH调节单荧光探针及其在细胞成像中的应用

DOI:
10.1039/d0ra02101f
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发表时间:
2020-06-02
期刊:
影响因子:
3.9
通讯作者:
--
中科院分区:
化学3区
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在本研究中,设计了一种萘席夫碱P作为双分析物探针,用于定量检测Al3+和Mg2+。与其他金属离子和阴离子相比,所提出的探针对乙醇水溶​​液(1 : 9,v/v,pH 6.3,20 mM HEPES)中的 Al3+ 表现出“关-开”荧光响应,而通过将 pH 从 6.3 调节至 9.4,探针的检测可以切换到 Mg2+。 P 对 Al3+/Mg2+ 的传感机制归因于通过形成 1 : 1 配体-金属络合物来抑制光诱导电子转移 (PET) 过程。更重要的是,该探针成功应用于活细胞中Al3+和Mg2+的荧光细胞成像。在本研究中,设计了一种萘席夫碱P作为双分析物探针,用于定量检测Al3+和Mg2+。
In this study, a naphthalene Schiff-base P which serves as a dual-analyte probe for the quantitative detection of Al3+ and Mg2+ has been designed. The proposed probe showed an ‘‘off–on’’ fluorescent response toward Al3+ in ethanol–water solution (1 : 9, v/v, pH 6.3, 20 mM HEPES) over other metal ions and anions, while the detection by the probe could be switched to Mg2+ by regulating the pH from 6.3 to 9.4. The sensing mechanisms of P to Al3+/Mg2+ are attributed to inhibition of the photo-induced electron transfer (PET) process by the formation of 1 : 1 ligand–metal complexes. More importantly, the probe was applied successfully in living cells for the fluorescent cell-imaging of Al3+ and Mg2+. In this study, a naphthalene Schiff-base P which serves as a dual-analyte probe for the quantitative detection of Al3+ and Mg2+ has been designed.
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