مشخصات پژوهش

عنوان	Rational design of a novel azoimine appended maleonitrile-based Salen chemosensor for rapid naked-eye detection of copper(II) ion in aqueous media
نوع پژوهش	مقاله چاپ‌شده
کلیدواژه‌ها	Aqueous media, Azo-azomethine, Chemosensor , Colorimetric, Copper(II)
چکیده	Achieving specific selectivity and high sensitivity for the colorimetric recognition of copper(II) ion in aqueous media over a complex background of potentially competing metal ions is inherently challenging in sensor development. Thus, a novel azo-azomethine receptor (L) based on the combination of 2-amino-3-(5-bromo-2-hydroxybenzylamino)maleonitrile and azo-coupled salicylaldehyde scaffold has been designed and synthesized for the naked-eye detection of Cu2+ ion at trace level in a wide pH range. Accordingly, the devised chemosensor distinguished Cu2+ from other metal ions by distinct color change from light yellow to light brown without any expensive equipment. The binding stoichiometry between Cu2+ and L has been investigated using Job’s plot and MALDI-TOF mass analysis. Remarkably, the current sensor can detect Cu2+ ion even at 1.07 μM level, which is lower than the World Health Organization (WHO) permissible level (30 μM) in drinking water. Furthermore, sensor L was successfully utilized in the preparation of test strip for the detection of copper(II) ion from aqueous environment.
پژوهشگران	حمید خانمحمدی (نفر دوم)، وجیهه عرب (نفر سوم)، خاطره رضائیان (نفر اول)