Magnetic electrode-based label-free electrochemical impedance spectroscopy immunosensor for sensitive detection of human malignant melanoma markers using gold nanoparticles functionalized magnetic graphene sheets as signal amplifier

RSC Advances ◽  
2014 ◽  
Vol 4 (103) ◽  
pp. 59106-59113 ◽  
Author(s):  
Yulan Wang ◽  
Zhankui Guo ◽  
Hongmin Ma ◽  
Yueyun Li ◽  
Wei Cao ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Electrochemical Impedance Spectroscopy ◽  
Malignant Melanoma ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Sensitive Detection ◽  
Graphene Sheets ◽  
Label Free ◽  
Human Malignant Melanoma ◽  
Signal Amplifier

Label-free analysis of water-polluting parasite by electrochemical impedance spectroscopy

2010 ◽  
Vol 25 (5) ◽  
pp. 1122-1129 ◽  
Author(s):  
T. Houssin ◽  
J. Follet ◽  
A. Follet ◽  
E. Dei-Cas ◽  
V. Senez
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Label Free

Electrochemical impedance spectroscopy of blood for sensitive detection of blood hematocrit, sedimentation and dielectric properties

2017 ◽  
Vol 9 (22) ◽  
pp. 3302-3313 ◽  
Author(s):  
A. Zhbanov ◽  
S. Yang
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Dielectric Properties ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Sensitive Detection ◽  
Promising Tool

Electrochemical impedance spectroscopy (EIS) is a highly promising tool for the analysis of blood.

The influence of gold nanoparticles on the electroactivity of nickel tetrasulfonated phthalocyanine

2014 ◽  
Vol 18 (08n09) ◽  
pp. 642-651 ◽  
Author(s):  
Audacity Maringa ◽  
Tebello Nyokong
Keyword(s):  
Gold Nanoparticles ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Glassy Carbon ◽  
Electrochemical Impedance ◽  
Modified Electrodes ◽  
Enhancement Effect ◽  
Carbon Electrode ◽  
Cathodic Peak ◽  
Peak Separation

We report on the electrodeposition of gold nanoparticles ( AuNPs ) on a glassy carbon electrode (GCE) followed by deposition of nickel tetrasulfonated phthalocyanine ( NiTSPc ) film by electropolymerization (poly- NiTSPc -GCE) to form Poly- NiTSPc / AuNPs -GCE. The presence of the gold nanoparticles caused a lowering of the anodic and cathodic peak separation (ΔE p ) of ferricyanide from 126 mV on poly- NiTSPc to 110 mV on poly- NiTSPc / AuNPs . The electrooxidation of nitrite improved on modified electrodes compared to GCE, with the latter giving E p = 0.78 V and the modified electrodes gave E p = 0.62 V or 0.61 V. Poly- NiTSPc / AuNPs -GCE had higher currents compared to poly- NiTSPc -GCE. This indicates the enhancement effect caused by the AuNPs . Electrochemical impedance spectroscopy and chronoamperometric studies also showed that poly- NiTSPc / AuNPs -GCE was a better electrocatalyst than poly- NiTSPc -GCE or AuNPs -GCE.

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