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Application of real sample analysis and biosensing: Synthesis of new naphthyl derived chemosensor for detection of Al3+ ions.
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy ( IF 4.3 ) Pub Date : 2020-07-06 , DOI: 10.1016/j.saa.2020.118684
Arjunan Saravanan 1 , Selvaraj Shyamsivappan 2 , Naveen Kumar Kalagatur 3 , Thangaraj Suresh 2 , Nikhil Maroli 3 , Nanjan Bhuvanesh 4 , Ponmalai Kolandaivel 5 , Palathurai Subramaniam Mohan 1
Affiliation  

A new chemosensor (NANH) based on naphthyl moiety was synthesized with good selectivity and sensitivity towards Al3+ ions via the inhibition by operating through dual mechanisms like photo-induced electron transfer (PET) and excited-state intramolecular proton transfer (ESIPT). The synthesized NANH was validated by various techniques such as 1H, 13C NMR and mass spectrum. While prominent fluorescent enhancement was observed from the NANH upon binding with Al3+ ions, however, other metal ions have not responded in the emission spectrum. Detection limit and association constant of NANH for Al3+ were calculated as 1.2 × 10−7 M and 4.09 × 104 M−1 by using fluorescence titration method. Binding ratio (1:1) of NANH with Al3+ ions were proved by Job's plot and DFT studies. Furthermore, aluminium in variety of water samples was determined, and NANH could be used for biosensing of Al3+ in living cells.



中文翻译:

实际样品分析和生物传感的应用:合成用于检测Al3 +离子的新型萘基化学传感器。

通过基于光致电子转移(PET)和激发态分子内质子转移(ESIPT)的双重机制进行抑制,合成了一种基于萘基的新型化学传感器(NANH),对Al 3+离子具有良好的选择性和敏感性。合成的NANH通过各种技术如1 H,13 C NMR和质谱验证。虽然在与Al 3+离子结合后从NANH观察到明显的荧光增强,但是其他金属离子在发射光谱中没有响应。计算出Al 3+的NANH的检出限和缔合常数为1.2×10 -7  M和4.09×10 4  M -1通过使用荧光滴定法。乔布氏图和DFT研究证明了NANH与Al 3+离子的结合比(1:1)。此外,测定了各种水样中的铝,并且可以将NANH用于活细胞中Al 3+的生物传感。

更新日期:2020-07-10
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