Design and construction of a carbon paste electrode modified with molecularly imprinted polymer-grafted nanocomposites for the determination of thyroxin in biological samples

2020 ◽  
Vol 12 (3) ◽  
pp. 333-344 ◽  
Author(s):  
Leila Mardani ◽  
Mohammad Taghi Vardini ◽  
Moosa Es'haghi ◽  
Ebrahim Ghorbani Kalhor
Keyword(s):  
Molecularly Imprinted Polymer ◽  
Carbon Paste Electrode ◽  
Biological Samples ◽  
Carbon Paste ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Carbon Paste Electrodes ◽  
Paste Electrode ◽  
Modified Carbon Paste Electrodes

In this study, a novel nano-molecularly imprinted polymer was synthesized and used to prepare modified carbon paste electrodes.

scholarly journals Detection of dopamine by a minimized electrochemical sensor using a graphene oxide molecularly imprinted polymer modified micropipette tip shaped graphite electrode

2021 ◽  
pp. 174751982198995
Author(s):  
Yi Wang ◽  
Jianshe Tang ◽  
Li Xiang
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Molecularly Imprinted Polymer ◽  
Carbon Paste Electrode ◽  
Limit Of Detection ◽  
Carbon Paste ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Paste Electrode

A simple and efficient electrochemical sensor based on a homemade reshaped micropipette tip carbon paste electrode is reported. Molecularly imprinted polymer membranes of graphene oxide and polypyrrole are synthesized and modified on the surface of micropipette tip carbon paste electrode. The merit of the method is evaluated under optimized conditions via differential pulse voltammetrics. The prepared sensor exhibits remarkable sensitivity toward dopamine with a linear range of 6.4 × 10−8–2 × 10−4 M, with a limit of detection as low as 1 × 10−8 M. The proposed method is applied for the determination of dopamine in urine samples by the standard addition route. A range of 1 × 10−7–1 × 10−4 M is obtained from these samples. The relative recoveries are in the range of 95.2%–104%. The proposed method has acceptable performance for the determination of dopamine in real samples with excellent sensitivity and selectivity.

Electrochemical sensor based on a carbon paste electrode modified by graphene nanosheets and molecularly imprinted polymer nanoparticles for determination of a chlordiazepoxide drug

2016 ◽  
Vol 8 (33) ◽  
pp. 6305-6312 ◽  
Author(s):  
Ali Motaharian ◽  
Mohammad Reza Milani Hosseini
Keyword(s):  
Electrochemical Sensor ◽  
Molecularly Imprinted Polymer ◽  
Carbon Paste Electrode ◽  
Graphene Nanosheets ◽  
Polymer Nanoparticles ◽  
Carbon Paste ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Paste Electrode

Procedure for fabrication of electrochemical sensor based on carbon paste electrode modified with molecularly imprinted polymer nanoparticles and graphene nanosheets for selective and sensitive determination of chlordiazepoxide (CDP) drug.

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