INQUIMAE-Facultad de Ciencias Exactas y Naturales-UBA, Pabellón 2, Ciudad Universitaria, C1428EHA, Ciudad de Buenos Aires, Argentina.
Biosens Bioelectron. 2010 Oct 15;26(2):890-3. doi: 10.1016/j.bios.2010.07.026. Epub 2010 Jul 17.
Here we report the derivatization of mesoporous TiO2 thin films for the preparation of H2O2 amperometric sensors. The coordination of the bifunctional ligand 1,10 phenantroline, 5,6 dione on the surface Ti(IV) ions provides open coordination sites for Fe(II) cations which are the starting point for the growth of a layer of Prussian blue polymer. The porous structure of the mesoporous TiO2 allows the growth, ion by ion of the coordination polymer. Up to four layer of Prussian blue can be deposit without losing the porous structure of the film, which results in an enhanced response of these materials as H2O2 sensors. These porous confined PB modified electrodes are robust sensors that exhibit good reproducibility, environmental stability and high sensitivity towards H2O2 detection.
在这里，我们报告了介孔 TiO2 薄膜的衍生化，用于制备 H2O2 电流传感器。双功能配体 1,10 菲啰啉-5,6-二酮与表面 Ti(IV)离子配位，为 Fe(II)阳离子提供了开放的配位位点，Fe(II)阳离子是普鲁士蓝聚合物生长的起点。介孔 TiO2 的多孔结构允许配位聚合物逐个生长。在不损失薄膜多孔结构的情况下，可以沉积多达四层的普鲁士蓝，从而提高了这些材料作为 H2O2 传感器的响应。这些多孔受限 PB 修饰电极是坚固的传感器，具有良好的重现性、环境稳定性和对 H2O2 检测的高灵敏度。
