State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, People's Republic of China.
Nanotechnology. 2010 Jun 18;21(24):245501. doi: 10.1088/0957-4484/21/24/245501. Epub 2010 May 20.
Many amines are proven or suspected to be carcinogenic and have been implicated in inducing cancer of the bladder. Therefore, the monitoring of their levels in environmental samples is important for the protection of health and the environment. Herein, a novel method for effective immobilization of Ru(bpy)(3)(2+) on the electrode surface of TiO(2) nanotube arrays (TNs) is developed for the first time. The method involves Ru(bpy)(3)(2+) spontaneously adsorbed on the surface of negatively charged TiO(2) nanotubes due to electrostatic interaction to produce a Ru(bpy)(3)(2+) /TNs/Ti (Ru-TNs-Ti) solid-state electrochemiluminescence (ECL) sensor. The prepared solid-state sensor was used to detect the changes of concentrations of pollutant tripropylamine (TPA) in water. The sensor exhibits excellent ECL behavior, very good stability and high sensitivity. This study may provide new insight into the design and preparation of an advanced solid-state ECL sensor for monitoring of amines in water.
许多胺类被证明或怀疑具有致癌性，并被认为与膀胱癌的发生有关。因此，监测环境样品中这些物质的含量对于保护健康和环境非常重要。本研究首次开发了一种将 Ru(bpy)(3)(2+)有效固定在 TiO(2)纳米管阵列 (TNs) 电极表面的新方法。该方法利用静电相互作用使 Ru(bpy)(3)(2+)自发吸附在带负电荷的 TiO(2)纳米管表面，从而产生 Ru(bpy)(3)(2+) /TNs/Ti (Ru-TNs-Ti) 固态电化学发光 (ECL) 传感器。制备的固态传感器用于检测水中污染物三丙胺 (TPA) 浓度的变化。该传感器表现出优异的 ECL 行为、非常好的稳定性和高灵敏度。这项研究可能为设计和制备用于监测水中胺类物质的先进固态 ECL 传感器提供新的思路。
