Das Poushali, Ganguly Sayan, Bose Madhuparna, Mondal Subhadip, Das Amit Kumar, Banerjee Susanta, Das Narayan Chandra
School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur 721302, India.
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, India.
Mater Sci Eng C Mater Biol Appl. 2017 Jun 1;75:1456-1464. doi: 10.1016/j.msec.2017.03.045. Epub 2017 Mar 7.
Zero-dimensional fluorescent nanoparticles having specificity as molecular probe appears to be strategically balanced fluorescent nano-probes. In this work, purified lemon extract and l-arginine have been thermally coupled for the extremely acute detection of Cu in aqueous medium. The Cu ions may be captured by the amino groups on the surface of the nano-sensor to form cupric ammine complex resulting in quenched fluorescence via an inner filter effect. Our proposed nano-probe is N-doped carbon dots (NCDs) which are efficiently selective as fluorescent chemosensor due to enormous binding affinity towards Cu in a wide range of concentration (0.05-300μM) within a few minutes.
具有分子探针特异性的零维荧光纳米粒子似乎是经过策略性平衡的荧光纳米探针。在这项工作中，纯化的柠檬提取物和L-精氨酸已进行热偶联，用于在水性介质中对铜进行超灵敏检测。铜离子可被纳米传感器表面的氨基捕获，形成铜氨络合物，通过内滤效应导致荧光猝灭。我们提出的纳米探针是氮掺杂碳点（NCDs），由于在几分钟内对宽浓度范围（0.05 - 300μM）的铜具有巨大的结合亲和力，因此作为荧光化学传感器具有高效选择性。
