Layer-By-Layer Self-Assembly of Sulphydryl-Functionalized Multiwalled Carbon Nanotubes and Phosphate-Functionalized Gold Nanoparticles: Detection of Hydrazine

ChemPlusChem ◽  
2012 ◽  
Vol 77 (10) ◽  
pp. 914-922 ◽  
Author(s):  
Fan Zhang ◽  
Lu Zhang ◽  
Junfei Xing ◽  
Yawen Tang ◽  
Yu Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Multiwalled Carbon Nanotubes ◽  
Self Assembly ◽  
Layer By Layer ◽  
Multiwalled Carbon ◽  
Functionalized Gold Nanoparticles ◽  
Functionalized Multiwalled Carbon Nanotubes ◽  
Nanoparticles Detection

Deposition of Gold Nanoparticles onto Thiol-Functionalized Multiwalled Carbon Nanotubes

2005 ◽  
Vol 109 (34) ◽  
pp. 16290-16295 ◽  
Author(s):  
Rodolfo Zanella ◽  
Elena V. Basiuk ◽  
Patricia Santiago ◽  
Vladimir A. Basiuk ◽  
Edgar Mireles ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon ◽  
Functionalized Multiwalled Carbon Nanotubes

scholarly journals Study on the Highly Sensitive AChE Electrode Based on Multiwalled Carbon Nanotubes

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Shuping Zhang ◽  
Zhancheng Gu ◽  
Yongli Hu ◽  
Song Qu ◽  
Ying Liu
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Modified Electrode ◽  
Self Assembly ◽  
Phosphate Buffer Solution ◽  
High Sensitivity ◽  
Acetylcholine Esterase ◽  
Layer By Layer ◽  
Buffer Solution ◽  
Multiwalled Carbon

Using chitosan (CS) as carrier, the method named layer-by-layer (LBL) self-assembly modification to modify the glassy carbon electrode (GCE) with multiwalled carbon nanotubes (MWNTs) and acetylcholine esterase (AChE) was proposed to prepare the acetylcholine esterase electrode with high sensitivity and stability. The modified electrode was used to detect pesticide of aldicarb, and the enzyme inhibition rate of the electrode showed good linearity with pesticide concentrations in the range of 10−10 g·L−1to 10−3 g·L−1. The detection limit was 10−11 g·L−1. The modified electrode was also used to detect the actual sample, and the recovery rate range was from 97.72% to 107.15%, which could meet the rapid testing need of the aldicarb residue. After being stored in the phosphate buffer solution (PBS) in 4°C for 30 days, the modified electrode showed good stability with the response current that was 80% of the original current.

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