A single carbon fiber microelectrode with branching carbon nanotubes for bioelectrochemical processes

Zhao, Xueyan; Lü, Xin; Tze, William Tai Yin; Wang, Ping

doi:10.1016/j.bios.2010.03.030

Cited by 50 publications

(40 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Electrochemical detection could represent the most successful approach for glycerol determination because of its sensitivity, reliability, and cost effectiveness. In general, glycerol determination by electrochemical techniques is related with the use of enzymemodified electrodes [1,2]. Only few studies reported the development of a non-enzymatic amperometric detection of glycerol in aqueous solution [3].…”

Section: Introductionmentioning

confidence: 99%

Silver-functionalized multi-wall carbon nanotubes composite electrode for non-enzymatic detection of glycerol

Pop

Manea

Remes

et al. 2011

2011 IEEE SENSORS Proceedings

View full text Add to dashboard Cite

In this paper, the obtaining, characterization and testing of a new electrocatalyst composite electrode based on multi-wall carbon nanotubes and silver-exchanged natural zeolite (MWCNT-AgZ) for non-enzymatic oxidation and determination of glycerol is reported. The electroanalytical sensitivity for the determination of glycerol at the MWCNT-AgZ electrode ranged from 0.051 to 0.386 mA/mM as a function of the electrochemical technique used, and the highest sensitivity was reached for linear-sweep voltammetry. The recovery studies indicated the possibility to determine glycerol in real samples.

show abstract

Section: Introductionmentioning

confidence: 99%

Silver-functionalized multi-wall carbon nanotubes composite electrode for non-enzymatic detection of glycerol

Pop

Manea

Remes

et al. 2011

2011 IEEE SENSORS Proceedings

View full text Add to dashboard Cite

show abstract

“…Comparison of the present work with other reported works.-Linearity range and detection limit of the proposed method is compared with the other reported methods 48,[76][77][78] (Table V).…”

Section: Resultsmentioning

confidence: 82%

An Electrochemical Sensor Based on Synergistic Effect of Nano Zinc Oxide-Multiwalled Carbon Nanotubes Hybrid Film for Sensing of Calcium Antagonist Cilnidipine

Jain

Dhanjai

2013

J. Electrochem. Soc.

View full text Add to dashboard Cite

An ultrasensitive electrochemical sensor based on the synergistic effect of nano ZnO and multi-walled carbon nanotubes (MWCNTs) for electrochemical sensing of calcium antagonist cilnidipine has been developed. The morphology and electroanalytical performance of the fabricated sensor were characterized by scanning electron microscopy, electrochemical impedance spectroscopy, chronocoulometry, square wave voltammetry and cyclic voltammetry. The developed electrochemical sensor exhibited good analytical performance including high sensitivity and selectivity as compared to multiwalled carbon nanotubes modified (MWCNTs/GCE), nano zinc oxide modified (nZnO/GCE) and bare glassy carbon electrode (GCE). The potential utility of developed sensor was demonstrated by applying successfully to the electroanalytical determination of cilnidipine in its pharmaceutical formulation. Under optimal conditions, the peak current is linear to cilnidipine concentration ranging from 5 ng mL −1 −5 μg mL −1 with a detection limit of 1.5 ng mL −1 . The ease of fabrication, excellent electrochemical performance and long term stability are the promising features of the fabricated sensor.Chemically modified electrodes are being used frequently in the electrochemical detection of pharmaceuticals due to their high sensitivity and selectivity. 1-10 Application of nanomaterials to fabricate the electrochemical sensors is nowadays one of the most exciting research fields, because of their high electrocatalytic activity, large surface area, good adsorption characteristics and high conductivity with increased electron transfer rate. 11-21 Nanomaterial based electrochemical sensors can substantially lower the overpotentials and increase the current response resulting in lowering of the detection limit. Up to now, many nanostructured electrodes including carbon nano material (graphene, fullerene and carbon nanotubes), 22-27 noble metal nanoparticles and their oxides, 28-32 boron-doped diamond electrodes 33 have been reported with improved performance in terms of sensitivity and detection limit. The unique electronic properties, special structure and excellent mechanical strength of carbon nanotubes (CNTs) and metal oxide nanoparticles make them material of choice for fabrication of electrochemical sensors. [34][35][36][37] Among different metal oxide nanoparticles, ZnO possess a special place as ZnO is an interesting n-type semiconductor with a large bandgap energy of 3.4 eV at room temperature with large excitonic energy, low-cost synthesis, biocompatibility, better electrochemical activities, non-toxicity, high-electron communication features and high mechanical strength. 38 ZnO nanoparticles have been widely used for the fabrication of efficient electrochemical sensors such as hydrazine chemical sensor, gas sensor and glucose/H 2 O 2 biosensors. 39-44 Carbon nanotubes (CNTs) are well known materials for fabrication of electrochemical sensors/biosensor because of the high reactive surface area, reduced resistance with high electrical conductivity, extr...

show abstract

“…The kinetics of electron-transfer reactions depends on the morphology of the samples and is faster on the bamboo-like structures, than on the nanotubes with smooth walls. Different oxidation properties of coenzyme NADH on carbon fibre microelectrode and carbon fibre microelectrode modified with branching carbon nanotubes have been reported by Zhao and co-workers (Zhao et al, 2010).…”

Section: Carbon Nanotubes Modified Electrodesmentioning

confidence: 99%

A Review of Non-Cottrellian Diffusion Towards Micro- and Nano-Structured Electrodes

Gmucová¹

2012

Electrochemical Cells - New Advances in Fundamental Researches and Applications

View full text Add to dashboard Cite

A single carbon fiber microelectrode with branching carbon nanotubes for bioelectrochemical processes

Cited by 50 publications

References 41 publications

Silver-functionalized multi-wall carbon nanotubes composite electrode for non-enzymatic detection of glycerol

Silver-functionalized multi-wall carbon nanotubes composite electrode for non-enzymatic detection of glycerol

An Electrochemical Sensor Based on Synergistic Effect of Nano Zinc Oxide-Multiwalled Carbon Nanotubes Hybrid Film for Sensing of Calcium Antagonist Cilnidipine

A Review of Non-Cottrellian Diffusion Towards Micro- and Nano-Structured Electrodes

Contact Info

Product

Resources

About