Electrochemiluminescence aptasensor of TiO2/CdS:Mn hybrids for ultrasensitive detection of cytochrome c

被引：15

作者：

Bin, Na ^{[1
]}

Li, Weili ^{[1
]}

Yin, Xuehua ^{[1
]}

Huang, Xiaohua ^{[1
]}

Cai, Qingyun ^{[1
]}

机构：

[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China

来源：

TALANTA | 2016年 / 160卷

基金：

中国国家自然科学基金;

关键词：

Electrochemiluminescence aptasensor; Cytochrome c; Titanium dioxide nanowires; CdS:Mn quantum dots; SENSITIZED SOLAR-CELLS; TIO2 NANOWIRE ARRAYS; LITHIUM-ION BATTERIES; CDSE QUANTUM DOTS; SEMICONDUCTOR NANOCRYSTALS; CAPILLARY-ELECTROPHORESIS; MASS-SPECTROMETRY; H2O2; GENERATION; GRAPHENE OXIDE; COMPOSITE;

D O I：

10.1016/j.talanta.2016.07.046

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel electrochemiluminescence (ECL) aptasensor was proposed for ultrasensitive detection of cytochrome c (cyt c) using CdS:Mn quantum dot-modified TiO2 nanowires (NWs) as electrode. The Mn-doped CdS was deposited on the TiO2 NWs by successive ion layer adsorption and reaction (SILAR) as ECL emitter, on which thiol-modified aptamer of cyt c was attached via Cd-S bond. Due to the high photoelectrical transfer efficiency, the as-prepared aptasensor shows high selectivity and sensitivity towards cyt c with a detection limit of 9.5 fM and a linear range from 50 fM to 125 pM. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：570 / 576

页数：7

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