Enhanced luminol electrochemiluminescence triggered by an electrode functionalized with dendrimers modified with titanate nanotubes

Enhanced luminol electrochemiluminescence triggered by an electrode functionalized with dendrimers modified with titanate nanotubes
复制标题

由钛酸盐纳米管修饰的树枝状聚合物功能化电极触发的增强鲁米诺电化学发光

DOI:
10.1007/s00604-013-0963-1
复制
发表时间:
2013-02
期刊:
影响因子:
5.7
通讯作者:
Chen, Guonan
Chen, Guonan
中科院分区:
化学2区
文献类型:
--
作者:
Yang, Caiping;Tong, Yuejin;Yang, Yusheng;Chen, Guonan

文献摘要

参考文献

被引文献

相似文献

我们通过用钛酸盐纳米管(TiNT)功能化聚(酰胺胺)树枝状聚合物(PAAD)构建了一种新型电化学发光(ECL)平台。 PAAD具有开放的球形结构,具有高密度的活性基团,因此有利于传质,而TiNT具有优异的电子导电性,因此可以促进玻碳电极(GCE)表面的电子转移。对改良 GCE 上鲁米诺 ECL 的强度和稳定性的研究表明,与裸 GCE 相比,鲁米诺 ECL 的强度和稳定性有显着改善。研究了 TiNT 浓度、溶液 pH 值和电化学参数对鲁米诺 ECL 强度的影响,并研制出一种灵敏的过氧化氢 (H2O2) ECL 传感器,其工作浓度范围为 1 nM 至 0.9 µM。然后利用超氧化物歧化酶 (SOD) 对 H2O2 电极 ECL 的清除作用来设计生物传感器,用于测定浓度在 50 至 500 nM 之间的 SOD。图鲁米诺 ECL 在 PAAD/TiNTs 修饰电极上的反应机理示意图。
We have constructed a novel electrochemiluminescence (ECL) platform by functionalizing a poly(amidoamine) dendrimer (PAAD) with titanate nanotubes (TiNTs). The PAAD has an open spherical structure that possesses a high density of active groups and thus favors mass transport, while the TiNTs possess excellent electronic conductivity and thus can promote electron transfer on the surface of a glassy carbon electrode (GCE). A study on the intensity and stability of the ECL of luminol on the modified GCE revealed a substantial improvement compared to that of a bare GCE. The effects of the concentration of TiNTs, the pH value of the solution, and of electrochemical parameters on the intensity of the ECL of luminol were studied and resulted in a sensitive ECL sensor for hydrogen peroxide (H2O2) that works in the concentration range of 1 nM to 0.9 μM. The scavenging effect of superoxide dismutase (SOD) on the H2O2 electrode ECL was then exploited to design a biosensor for the determination of SOD in concentrations between 50 and 500 nM.FigureThe reaction mechanism schematic diagram of luminol ECL on the PAAD/TiNTs modified eledtrode.
DOI: 10.1007/s00604-010-0302-8
发表时间: 2010-02
期刊: Microchimica Acta
影响因子: 5.7
作者:
Shifeng Li;Shanjun Tao;Fenfen Wang;Jianguo Hong;Xian‐Wen Wei
通讯作者: Shifeng Li;Shanjun Tao;Fenfen Wang;Jianguo Hong;Xian‐Wen Wei
DOI: 10.1016/s0925-4005(00)00575-x
发表时间: 2000-11-01
影响因子: 8.4
作者:
Chen, J;Wollenberger, U;Scheller, FW
通讯作者: Scheller, FW
DOI: 10.1007/s00216-011-5070-8
发表时间: 2011-05
影响因子: 4.3
作者:
T. V. Zhidkova;E. Proskurnina;É. A. Parfenov;Y. Vladimirov
通讯作者: T. V. Zhidkova;E. Proskurnina;É. A. Parfenov;Y. Vladimirov
DOI: 10.1016/j.jhazmat.2009.09.041
发表时间: 2010-02
影响因子: 13.6
作者:
Huanshun Yin;Yunlei Zhou;S. Ai;Quanpeng Chen;Xiangbin Zhu;Xianggang Liu;L. Zhu
通讯作者: Huanshun Yin;Yunlei Zhou;S. Ai;Quanpeng Chen;Xiangbin Zhu;Xianggang Liu;L. Zhu
DOI: 10.1016/j.electacta.2012.05.079
发表时间: 2012-08
影响因子: 6.6
作者:
Shujuan Yu;Xiao-Jiao Peng;G. Cao;Ming Zhou;Lei Qiao;Jianyu Yao;Huichao He
通讯作者: Shujuan Yu;Xiao-Jiao Peng;G. Cao;Ming Zhou;Lei Qiao;Jianyu Yao;Huichao He