Immobilization and direct electrochemistry of cytochrome c at a single-walled carbon nanotube-modified electrode

2006 ◽  
Vol 11 (3) ◽  
pp. 390-397 ◽  
Author(s):  
Yajing Yin ◽  
Ping Wu ◽  
Yafen Lü ◽  
Pan Du ◽  
Yanmao Shi ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Cytochrome C ◽  
Modified Electrode ◽  
Direct Electrochemistry ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon

scholarly journals Electrocatalytic Study of Paracetamol at a Single-Walled Carbon Nanotube/Nickel Nanocomposite Modified Glassy Carbon Electrode

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Koh Sing Ngai ◽  
Wee Tee Tan ◽  
Zulkarnain Zainal ◽  
Ruzniza Mohd Zawawi ◽  
Joon Ching Juan
Keyword(s):  
Cyclic Voltammetry ◽  
Carbon Nanotube ◽  
Glassy Carbon Electrode ◽  
Modified Electrode ◽  
Glassy Carbon ◽  
Carbon Electrode ◽  
Single Walled Carbon Nanotube ◽  
Paracetamol Concentration ◽  
Single Walled Carbon

A rapid, simple, and sensitive method for the electrochemical determination of paracetamol was developed. A single-walled carbon nanotube/nickel (SWCNT/Ni) nanocomposite was prepared and immobilized on a glassy carbon electrode (GCE) surface via mechanical attachment. This paper reports the voltammetry study on the effect of paracetamol concentration, scan rate, pH, and temperature at a SWCNT/Ni-modified electrode in the determination of paracetamol. The characterization of the SWCNT/Ni/GCE was performed by cyclic voltammetry. Variable pressure scanning electron microscopy (VPSEM) and energy dispersive X-ray (EDX) spectrometer were used to examine the surface morphology and elemental profile of the modified electrode, respectively. Cyclic voltammetry showed significant enhancement in peak current for the determination of paracetamol at the SWCNT/Ni-modified electrode. A linear calibration curve was obtained for the paracetamol concentration between 0.05 and 0.50 mM. The SWCNT/Ni/GCE displayed a sensitivity of 64 mA M−1and a detection limit of 1.17 × 10−7 M in paracetamol detection. The proposed electrode can be applied for the determination of paracetamol in real pharmaceutical samples with satisfactory performance. Results indicate that electrodes modified with SWCNT and nickel nanoparticles exhibit better electrocatalytic activity towards paracetamol.

A Metal-Free, Non-Enzymatic Electrochemical Glucose Sensor with a de-Bundled Single-Walled Carbon Nanotube-Modified Electrode

2017 ◽  
Vol 39 (2) ◽  
pp. 141-145 ◽  
Author(s):  
Dinakaran Thirumalai ◽  
Devaraju Subramani ◽  
Bosung Shin ◽  
Hyun-jong Paik ◽  
Seung-Cheol Chang
Keyword(s):  
Carbon Nanotube ◽  
Modified Electrode ◽  
Glucose Sensor ◽  
Single Walled Carbon Nanotube ◽  
Metal Free ◽  
Single Walled Carbon

scholarly journals Picomolar Detection of Protease Using Peptide/Single Walled Carbon Nanotube/Gold Nanoparticle-Modified Electrode

ACS Nano ◽  
2008 ◽  
Vol 2 (5) ◽  
pp. 1051-1057 ◽  
Author(s):  
Khaled A. Mahmoud ◽  
Sabahudin Hrapovic ◽  
John H. T. Luong
Keyword(s):  
Carbon Nanotube ◽  
Gold Nanoparticle ◽  
Modified Electrode ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon

scholarly journals Electrochemical Sensor Based on Single-Walled Carbon Nanotube/ZnO Photocatalyst Nanocomposite Modified Electrode for the Determination of Paracetamol

2016 ◽  
Vol 8 (4) ◽  
pp. 788-796 ◽  
Author(s):  
Koh Sing Ngai ◽  
Wee Tee Tan ◽  
Zulkarnain Zainal ◽  
Ruzniza Mohd Zawawi ◽  
Joon Ching Juan
Keyword(s):  
Carbon Nanotube ◽  
Electrochemical Sensor ◽  
Modified Electrode ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon
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