Label-free and enhanced DNA sensing platform for PML/RARA fusion gene detection based on nano-ZnO functionalized carbon ionic liquid electrode

Label-free and enhanced DNA sensing platform for PML/RARA fusion gene detection based on nano-ZnO functionalized carbon ionic liquid electrode
复制标题

基于纳米ZnO功能化碳离子液体电极的无标记增强型DNA传感平台用于PML/RARA融合基因检测

DOI:
10.1016/j.snb.2011.12.090
复制
发表时间:
2012-02
期刊:
Sensors and Actuators B: Chemical
影响因子:
--
通讯作者:
郑秀文
郑秀文
中科院分区:
其他
文献类型:
--
作者:
郑秀文

文献摘要

参考文献

被引文献

相似文献

将PML/RARA相关的18-mer寡核苷酸ssDNA序列固定在纳米ZnO修饰的碳离子液体电极上,制备了一种新型的电化学阻抗DNA生物传感器。用扫描电子显微镜对ZnO纳米粒子的形貌进行了表征。利用循环伏安法和电化学阻抗谱研究了ZnO修饰、ssDNA的固定和电极表面的杂交过程。在最佳条件下,探针ssDNA与靶DNA杂交前后的阻抗谱发生了显著变化。因此,有效的探针固定平台,加上超灵敏的无标记阻抗测量,使检测限达到2.5×10− 13 mol/L。
A novel electrochemical impedance DNA biosensor for acute promyelocytic leukemia was developed by immobilizing a PML/RARA related 18-mer oligonucleotides ssDNA sequence on carbon ionic liquid electrode modified with nanosized ZnO. The morphology of ZnO nanoparticles was characterized by using scanning electron microscopy. Cyclic voltammetry and electrochemical impedance spectroscopy were performed for the study of decoration of ZnO, immobilization of ssDNA and the hybridization event at the electrode surface. Remarkable change has been observed in the impedance spectra before and after hybridization of probe ssDNA with the target DNA under optimal conditions. As a result, the effective probe immobilization platform, coupled with the ultrasensitive label-free impedance measurement, gave rise to a detection limit of 2.5×10−13mol/L.
DOI: 10.1039/c0an00258e
发表时间: 2010-01-01
期刊: ANALYST
影响因子: 4.2
作者:
Mohan, Swati;Nigam, Preeti;Prakash, Rajiv
通讯作者: Prakash, Rajiv
DOI: 10.1016/j.electacta.2010.12.034
发表时间: 2011-02-15
影响因子: 6.6
作者:
Bo, Yang;Yang, Huiyan;Huang, Shasheng
通讯作者: Huang, Shasheng
离子液体掺杂聚苯胺反蛋白石:制备、表征及其在乙型肝炎表面抗原电化学阻抗免疫分析中的应用
DOI: 10.1002/adfm.200901003
发表时间: 2009-10-09
影响因子: 19
作者:
Li, Xing-Hua;Dai, Lin;Zhu, Jun-Jie
通讯作者: Zhu, Jun-Jie
DOI: 10.1021/jp711853q
发表时间: 2008-03
期刊: The journal of physical chemistry. B
影响因子: --
作者:
N. Prabhakar;K. Arora;Harpal Singh;B. Malhotra
通讯作者: N. Prabhakar;K. Arora;Harpal Singh;B. Malhotra
DOI: 10.1002/chin.200817270
发表时间: 2008-04
期刊: ChemInform
影响因子: --
作者:
Audrey Sassolas;B. Leca-Bouvier;L. Blum
通讯作者: Audrey Sassolas;B. Leca-Bouvier;L. Blum