A dual chemosensor for both Cu2+ and Al3+: A potential Cu2+ and Al3+ switched YES logic function with an INHIBIT logic gate and a novel solid sensor for detection and extraction of Al3+ ions from aqueous solution
A dual chemosensor for both Cu2+ and Al3+: A potential Cu2+ and Al3+ switched YES logic function with an INHIBIT logic gate and a novel solid sensor for detection and extraction of Al3+ ions from aqueous solution
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DOI：
10.1016/j.snb.2015.08.001
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发表时间：
2016-01-01
影响因子：
8.4
通讯作者：
Son, Young-A
中科院分区：
文献类型：
--
作者：
Kim, Hak-Soo;Angupillai, Satheshkumar;Son, Young-A
设计并合成了一种简单的4-硝基水杨醛亚胺基罗丹明B受体（RB-HN），作为检测Cu ~（2+）和Al ~（3+）离子的“关-开-关”双传感器，该传感器对其它金属离子具有较高的灵敏度。在DMSO-H_2 O介质中，RB-HN对Cu ~（2+）和Al ~（3+）具有选择性的光学识别和荧光识别。RB-HN对Cu ~（2+）和Al ~（3+）的检出限分别为4.726 × 10 ~（-7）M和4.43 × 10 ~（-7）M。结合H-1 NMR研究表明，RB-HN与Cu ~（2+）/Al ~（3+）之间存在1：1的配位模式。RB-HN与Cu 2+和Al 3+离子的配合物表现出“开关”行为，并且与EDTA高度可逆。此外，通过Cu ~（2+）和Al ~（3+）的输入，RB-HN的紫外-可见光和荧光变化被用来构建分子水平的组合逻辑电路。此外，设计了一种新型的选择性和敏感的固体传感器（PEGDMA-RB-HN）检测和提取水溶液中的铝离子。此外，通过共聚焦激光扫描显微镜（CLSM）和扫描电子显微镜（SEM）证实了固体传感器的灵敏度。采用ICP-AES对固体传感器的萃取能力进行了验证，其萃取能力明显低于世界卫生组织对饮用水的建议。(C)2015爱思唯尔B. V.保留所有权利。
A simple 4-nitrosalicylaldimine-based receptor equipped with rhodamine B moiety (RB-HN) has been designed and synthesized as an "OFF-ON-OFF" dual sensor for the detection of Cu2+ and Al3+ ions, which exhibits high sensitivity over other metal ions. The chemosensor RB-HN demonstrates selective optical recognition for Cu2+ and fluorescence recognition for Al3+ over commonly coexistent metal ions in DMSO-H2O media. The LODs of the RB-HN for Cu2+ and Al3+ were 4.726 x 10(-7) and 4.43 x 10(-7) M, respectively. A coordination mode with 1:1 stoichiometry was proposed between RB-HN and Cu2+/Al3+ by the H-1 NMR binding studies. The RB-HN complex with Cu2+ and Al3+ ions exhibits "turn on-off' behavior and is highly reversible with EDTA. In addition, the UV-vis and fluorescence changes of RB-HN by the inputs of Cu2+ and Al3+ have been used to construct a combinational logic circuit at the molecular level. Moreover, a novel selective and sensitive solid sensor (PEGDMA-RB-HN) was designed to detect and extract Al3+ ions from aqueous solution. Furthermore, the sensitivity of the solid sensor was demonstrated by confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). The extracting capacity of the solid sensor was validated with ICP-AES, and it was significantly lower than the WHO recommendations for drinking water. (C) 2015 Elsevier B.V. All rights reserved.