NIR sensing of Zn(<scp>ii</scp>) and subsequent dihydrogen phosphate detection by a benzothiazole functionalized ninhydrin based receptor
作者:Abhijit Gogoi、Gopal Das
DOI:10.1039/c4ra10556g
日期:——
benzothiazole functionalized ninhydrin based chemosensor (L1), exhibits selective naked eye detection of biologically important zinc ions (from light yellow to orange) accompanied by a ‘turn-on’ fluorescence emission response in the near infra-red (NIR) region. Most importantly, Zn2+ ion induced ‘turn-on’ fluorescence emission is also preserved in the presence of Cd2+ and most of the other competing
苯并噻唑官能化的基于茚三酮的化学传感器(L 1)表现出对重要的锌离子(从浅黄色到橙色)的选择性肉眼检测,并在近红外(NIR)区域具有“开启”荧光发射响应。最重要的是,在Cd 2+和大多数其他竞争性金属离子的存在下,Zn 2+离子诱导的“开启”荧光发射也得以保留,这清楚地表明了化学传感器对Zn 2+的高灵敏度。Job的图表明L 1与Zn 2+离子的1:1结合,检测极限为6 nM。详细1还进行了1 H NMR滴定,以了解L 1对Zn 2+离子的结合行为。在“大号1 -Zn 2+合奏”还示出到h的比例响应2 PO 4 -在相同的实验条件下其他竞争的阴离子和核苷酸中。