Introductory Chapter: Carbon Nanotubes and Their Applications

Rahman, Mohammed M.; Asiri, Abdullah M.

doi:10.5772/intechopen.75738

Cited by 2 publications

(2 citation statements)

References 29 publications

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“…These active sites can enhance the electrochemical oxidation of OMZ via accelerating the electron transfer rate between the electrode surface, and OMZ molecules. [21][22][23] Fe 3 O 4 magnetic nanoparticles offered good biocompatibility, large surface area/volume ratio, superparamagnetic properties, good conductivity, supporting the cat- alytic performance toward OMZ detection. 27,29 Modifying CNTs with Fe 3 O 4 added more advantages to their nanocomposite in terms of high sensitivity, facilitated electron transfer kinetics/fast mass transfer, and improved surface area compared to Fe 3 O 4 .…”

Section: Resultsmentioning

confidence: 85%

“…CNTs, with nanoscale needle shape and well-ordered arrangement via sp 2 bonds, showed good biocompatibility, ability of immobilization of different molecules at their surfaces, high surface to volume ratio, enhanced stability, and sensitivity, large surface area for analytes adsorption, and unique strength, rigidity, and conductivity. [21][22][23][24][25] CNTs/magnetic iron oxide (Fe 3 O 4 ) nanocomposites have been reported as active and durable electro-catalyst for sensor and biosensor applications combining the characteristics of both CNTs, and Fe 3 O 4 . [25][26][27][28][29][30][31] Fe 3 O 4 magnetic nanoparticles displayed fascinating features of low toxicity, facile preparation, good biocompatibility, large surface area/volume ratio, and superparamagnetic properties.…”

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confidence: 99%

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New Insight in Fabrication of a Sensitive Nano-Magnetite/Glutamine/Carbon Based Electrochemical Sensor for Determination of Aspirin and Omeprazole

Atta

El-Ads

Galal

2019

J. Electrochem. Soc.

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In the present study, we introduce a direct and sensitive voltammetry approach for the simultaneous determination of aspirin (ASA) and omeprazole (OMZ) for patients suffering from cardiovascular diseases and gastrointestinal disorders. Low dose of ASA can be used for the prevention of cardiovascular diseases which is considered the most severe cause of mortality worldwide. On the other hand, OMZ can reduce the risk of gastric ulcers and gastrointestinal damage associated with ASA. The used electrode was constructed by in situ-modification with multi-walled carbon nanotubes, glutamine, and nano-magnetite in presence of sodium dodecyl sulfate (FeGluCNTCP-SDS). Using this sensor, the limits of detection were 11.9 nmol•L −1 and 3.3 nmol•L −1 for ASA and OMZ, respectively. The proposed sensor was used for the determination of OMZ in presence of dopamine, paracetamol, ascorbic acid, and uric acid without noticeable interference in their binary or ternary mixtures. The proposed surface showed good analytical performance toward OMZ determination and has a promising application for the electrochemical sensing of other drugs of pharmaceutical importance.

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