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A novel coumarin based molecular switch for dual sensing of Zn(II) and Cu(II)

机译:一种基于香豆素的新型分子开关,用于Zn(II)和Cu(II)的双重传感

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An efficient coumarin based molecular switch for the dual sensing of two environmentally as well as biologically important cations Zn2+ and Cu2+ has been synthesized. The receptor H2L shows about 6 fold enhancement in fluorescence intensity upon the addition of Zn2+ and also exhibits quenching of emission intensity upon the addition of Cu2+ without interference of other metal ions present in solution. In the case of other metal ions no significant change in the emission intensity is observed. H2L presents a tunable system comprising of two INHIBIT logic gates with Zn2+ and Cu2+ or Zn2+ and EDTA as chemical inputs by monitoring the emission mode. An IMPLICATION logic gate is obtained with Cu2+ and EDTA as chemical inputs and emission as the output mode.
机译:合成了一种基于香豆素的高效分子开关,可对两种环境以及生物学上重要的阳离子Zn2 +和Cu2 +进行双重检测。受体H2L在添加Zn2 +时显示出约6倍的荧光强度增强,并且在添加Cu2 +时显示出发射强度猝灭,而不会干扰溶液中存在的其他金属离子。在其他金属离子的情况下,未观察到发射强度的显着变化。 H2L提供了一种可调系统,该系统由两个INHIBIT逻辑门组成,这些逻辑门通过监控发射模式,以Zn2 +和Cu2 +或Zn2 +和EDTA作为化学输入。使用Cu2 +和EDTA作为化学输入,并以发射作为输出模式获得IMPLICATION逻辑门。

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