A Novel DNA Biosensor Based on a Pencil Graphite Electrode Modified with Polypyrrole/Functionalized Multiwalled Carbon Nanotubes for Determination of 6-Mercaptopurine Anticancer Drug

2015 ◽  
Vol 54 (14) ◽  
pp. 3634-3639 ◽  
Author(s):  
Hassan Karimi-Maleh ◽  
Fahimeh Tahernejad-Javazmi ◽  
Necip Atar ◽  
Mehmet Lütfi Yola ◽  
Vinod Kumar Gupta ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Anticancer Drug ◽  
Graphite Electrode ◽  
Dna Biosensor ◽  
Pencil Graphite Electrode ◽  
Multiwalled Carbon ◽  
Functionalized Multiwalled Carbon Nanotubes

Modification of a disposable pencil graphite electrode with multiwalled carbon nanotubes: application to electrochemical determination of diclofenac sodium in some pharmaceutical and biological samples

2016 ◽  
Vol 8 (19) ◽  
pp. 3966-3974 ◽  
Author(s):  
Golnaz Parvizi Fard ◽  
Esmaeel Alipour ◽  
Reza Emam Ali Sabzi
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensor ◽  
Multiwalled Carbon Nanotubes ◽  
Biological Samples ◽  
Graphite Electrode ◽  
Diclofenac Sodium ◽  
Electrochemical Determination ◽  
Pencil Graphite Electrode ◽  
Multiwalled Carbon

A MWCNTs/PGE was developed as an electrochemical sensor and used for the determination of diclofenac sodium (DIC).

scholarly journals First Electrochemical Sensor (Screen-Printed Carbon Electrode Modified with Carboxyl Functionalized Multiwalled Carbon Nanotubes) for Ultratrace Determination of Diclofenac

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 781 ◽  
Author(s):  
Agnieszka Sasal ◽  
Katarzyna Tyszczuk-Rotko ◽  
Magdalena Wójciak ◽  
Ireneusz Sowa
Keyword(s):  
Carbon Nanotubes ◽  
Electrochemical Sensor ◽  
Multiwalled Carbon Nanotubes ◽  
Active Surface Area ◽  
Carbon Electrode ◽  
Multiwalled Carbon ◽  
Screen Printed Carbon Electrode ◽  
Functionalized Multiwalled Carbon Nanotubes ◽  
Screen Printed

A simple, sensitive and time-saving differential-pulse adsorptive stripping voltammetric (DPAdSV) procedure using a screen-printed carbon electrode modified with carboxyl functionalized multiwalled carbon nanotubes (SPCE/MWCNTs-COOH) for the determination of diclofenac (DF) is presented. The sensor was characterized using optical profilometry, SEM, and cyclic voltammetry (CV). The use of carboxyl functionalized MWCNTs as a SPCE modifier improved the electron transfer process and the active surface area of sensor. Under optimum conditions, very sensitive results were obtained with a linear range of 0.1–10.0 nmol L−1 and a limit of detection value of 0.028 nmol L−1. The SPCE/MWCNTs-COOH also exhibited satisfactory repeatability, reproducibility, and selectivity towards potential interferences. Moreover, for the first time, the electrochemical sensor allows determining the real concentrations of DF in environmental water samples without sample pretreatment steps.

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