Enhanced electrochemical sensitivity towards acetaminophen determination using electroactive self-assembled ferrocene derivative polymer nanospheres with multi-walled carbon nanotubes

2018 ◽  
Vol 272 ◽  
pp. 212-220 ◽  
Author(s):  
Yuan Chen ◽  
Xiaoying Liu ◽  
Tengteng Wu ◽  
Wenli Hou ◽  
Meiling Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Ferrocene Derivative ◽  
Multi Walled Carbon Nanotubes ◽  
Self Assembled ◽  
Polymer Nanospheres ◽  
Walled Carbon Nanotubes

Multifunctional biosensor based on self-assembled multi-walled carbon nanotubes sponge

2016 ◽  
Vol 27 (7) ◽  
pp. 6911-6917 ◽  
Author(s):  
Yingchun Li ◽  
Minggang Zhao ◽  
Jing Chen ◽  
Sisi Fan ◽  
Jingjing Liang ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multi Walled Carbon Nanotubes ◽  
Self Assembled ◽  
Walled Carbon Nanotubes

DNA Biosensors Based on Self-Assembled Multi-Walled Carbon Nanotubes

2009 ◽  
Vol 60-61 ◽  
pp. 170-174
Author(s):  
Jie Chun Pang ◽  
Ji Mei Zhang ◽  
Yi Yun Xiao ◽  
Zhao Dai ◽  
Shi Chao Xu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrode System ◽  
Current Response ◽  
Dna Biosensors ◽  
Au Electrode ◽  
Biosensor System ◽  
Modified Dna ◽  
Multi Walled Carbon Nanotubes ◽  
Self Assembled ◽  
Walled Carbon Nanotubes

A novel electrochemical DNA biosensor system based on multi-walled carbon nanotubes(MWCNTs) was presented in this paper. In order to make multi-walled carbon nanotubes being perpendicularly standing on Au electrode via Au-S chemical bonding, we cut multi-walled carbon nanotubes (1.5 m) into short pipes (200-300 nm). Then, the shortened nanotubes were further modified by thiolization reaction with cysteamine (NH2CH2CH2SH). The –SH modified MWCNTs, gold nanoparticles and 5’ end –SH modified DNA (HS-DNA) as nucleotide probes were self-assembled onto the surface of Au electrode respectively. The DNA biosensors based on self-assembled MWCNTs had a higher current response compared to those based on random MWCNTs. When the target DNA concentration was 4.0×10–9 mol/L to 1.2×10-8 mol/L, the cathodic peak current of Au electrode system with the AQDS as indicator was linearly related, and the detection limit was about 6.5×10-9 mol/L. In addition, the developed DNA biosensors also had a high selectivity of hybridization detection.

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