Chen Xi, Li Zhen, Jiang Ya-qi, Zhong Zhen-ming, Wang Xiao-ru, Wong Kwokyin
Key Laboratory of Analytical Sciences of MOE, Department of Chemistry, Xiamen University, Xiamen 361005, China.
Guang Pu Xue Yu Guang Pu Fen Xi. 2002 Oct;22(5):796-9.
A new kind of organically modified sol-gel (ormosil) as a matrix for oxygen-sensitive sensor, in which dimethyldimethoxysilane was selected as an organic modifier in the precursor is described. The fluorescent behaviors of different ruthenium complexes in solution and ormosil film were studied. The sensing film with different kind ruthenium complex as an indicator developed in this paper was characterized in terms of efficiently quenched by oxygen. A new ormosil provides a more desirable environment for oxygen response through increasing film hydrophobicity by the content of the nonbridging Si-CH3 groups has been discussed. The sensing film with tris-(4,7-diphenyl-1,10-phenanthroline) ruthenium(II) as an indicator is selected because of its characteristic with high quenching efficiency, fast response time, high luminescence intensity and long-term stability.
描述了一种新型的有机改性溶胶-凝胶（ormosil）作为氧敏传感器的基质，其中在前体中选择二甲基二甲氧基硅烷作为有机改性剂。研究了不同钌配合物在溶液和ormosil膜中的荧光行为。本文开发的以不同种类钌配合物为指示剂的传感膜，其特征在于能被氧有效猝灭。讨论了一种新的ormosil，通过增加非桥连Si-CH3基团的含量提高膜的疏水性，为氧响应提供了更理想的环境。选择以三（4,7-二苯基-1,10-菲咯啉）钌（II）为指示剂的传感膜，是因为其具有猝灭效率高、响应时间快、发光强度高和长期稳定性好的特点。
