Development of non-enzymatic glucose sensor based on efficient loading Ag nanoparticles on functionalized carbon nanotubes

Baghayeri, Mehdi; Amiri, Amirhassan; Farhadi, Samaneh

doi:10.1016/j.snb.2015.11.003

Cited by 198 publications

(70 citation statements)

References 47 publications

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“…Thus, it is necessary to build enzyme‐free electrochemical sensors with high sensitivity, low cost, and high stability towards the external environment. Nowadays, many nanomaterials that possess large specific surface area and high catalytic activity, such as semiconducting metal oxides , carbon nanotubes , graphene , transitional metallic nanoparticles and so on, have been used to fabricate enzyme‐free electrochemical sensors . However, the sensitivity of these non‐enzyme electrochemical sensors remains undesirable due to the relatively high background noise.…”

Section: Introductionmentioning

confidence: 99%

A Non‐enzymatic Hydrogen Peroxide Photoelectrochemical Sensor Based on a BiVO₄ Electrode

Liu

Zhang

2016

Electroanalysis

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In this study, a non‐enzymatic hydrogen peroxide photoelectrochemical (PEC) sensor based on nanoporous BiVO4 film electrode is fabricated by electrodeposit of nanoporous BiOI film on fluorine‐doped tin oxide glass (FTO) and subsequent conversion to BiVO4 by annealing at elevated temperature. The electrode exhibits excellent visible light photoelectrochemical activity, and H2O2 works as a hole scavenger to react with light‐induced electron holes on the valence band of BiVO4. Upon illumination and at applied bias potential of +0.2 V, the photocurrent density is linearly correlated to the concentration of H2O2. The linear determination range of H2O2 is 9.54–764.76 μM with a corresponding correlation coefficient of 0.9997, a detection limit of 1.59 μM (S/N=3), and sensitivity of 182.6 μA mM−1 cm−2. The optimum bias potential, most suitable film thickness, anti‐interference performance, and impedance are also explored. The sensor shows good response towards H2O2 and displays a promising prospect for non‐enzyme PEC H2O2 sensor.

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Section: Introductionmentioning

confidence: 99%

A Non‐enzymatic Hydrogen Peroxide Photoelectrochemical Sensor Based on a BiVO₄ Electrode

Liu

Zhang

2016

Electroanalysis

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“…Fabrication of enzyme-less amperometric glucose sensor was developed by casting of metformine/ functionalized MWCNTs on the GCE which can act as a platform for electrodeposition of Ag nanoparticles [39]. This modification leads to glucose sensor with characteristic features such as high sensitivity, good stability, and rapid current response, as well as simple preparation process and cost-effectiveness.…”

Section: Cnt Modified Electrodes For Sensing and Bio-sensing Applicatmentioning

confidence: 99%

A Review on the Effects of Introducing CNTs in the Modification Process of Electrochemical Sensors

et al. 2018

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This review summarizes some developments in the fabrication of modified sensors and biosensors through the incorporating the carbon nanotubes (CNTs) in their modification ingredients. A large number of papers have paid attention towards the application of carbon nanotubes (CNTs) as electrode constituents and studied its electrochemical behavior. Here, we survey the achievements in the detection of various substances with high selectivity and sensitivity provided using CNTs based electrodes. Moreover, modified electrodes by CNTs have demonstrated the electrocatalytic features and higher sensitivity in detection of analytes. The improved characteristics arises from the large surface area and good conductivity of CNTs. However, it should be considered that the use of single walled carbon nanotubes (SWCNTs) or multi‐walled carbon nanotubes (MWCNTs), the presence of impurities, and the chemical procedures adopted are effective on the performance of the modified sensors.

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“…The silver nanoparticles (AgNP) with their biocompatibility, stability, optical properties, excellent catalytic activity, low toxicity and high conductivity, antibacterial activity can be used for excellent estimates in biological sensing and medical applications . In the literature, many laborious multilayer electrochemical biosensors and nanosensors have been supported with AgNPs.…”

Section: Introductionmentioning

confidence: 99%

An Electrochemical Sensor Based on Silver Nanoparticles‐Benzalkonium Chloride for the Voltammetric Determination of Antiviral Drug Tenofovir

2018

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A simple voltammetric nanosensor was described for the highly sensitive determination of antiviral drug Tenofovir. The benzalkonium chloride and silver nanoparticles were associated to build a nanosensor on glassy carbon electrode. Surface characterictics were achieved using scanning electron microscopic technique. The voltammetric measurements were performed in pH range between 1.0 and 10.0 using cyclic, adsorptive stripping differential pulse and adsorptive stripping square wave voltammetry. The linear dependence of the peak current on the square root of scan rates and the slope value (0.770) demonstrated that the oxidation of tenofovir is a mix diffusion‐adsorption controlled process in pH 5.70 acetate buffer. The linearity range was found to be 6.0×10−8–1.0×10−6 M, and nanosensor displayed an excellent detection limit of 2.39×10−9 M by square wave adsorptive stripping voltammetry. The developed nanosensor was successfully applied for the determination of Tenofovir in pharmaceutical dosage form. Moreover, the voltammetric oxidation pathway of tenofovir was also investigated at bare glassy carbon electrode comparing with some possible model compounds (Adenine and Adefovir).

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Development of non-enzymatic glucose sensor based on efficient loading Ag nanoparticles on functionalized carbon nanotubes

Cited by 198 publications

References 47 publications

A Non‐enzymatic Hydrogen Peroxide Photoelectrochemical Sensor Based on a BiVO₄ Electrode

A Non‐enzymatic Hydrogen Peroxide Photoelectrochemical Sensor Based on a BiVO₄ Electrode

A Review on the Effects of Introducing CNTs in the Modification Process of Electrochemical Sensors

An Electrochemical Sensor Based on Silver Nanoparticles‐Benzalkonium Chloride for the Voltammetric Determination of Antiviral Drug Tenofovir

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Development of non-enzymatic glucose sensor based on efficient loading Ag nanoparticles on functionalized carbon nanotubes

Cited by 198 publications

References 47 publications

A Non‐enzymatic Hydrogen Peroxide Photoelectrochemical Sensor Based on a BiVO4 Electrode

A Non‐enzymatic Hydrogen Peroxide Photoelectrochemical Sensor Based on a BiVO4 Electrode

A Review on the Effects of Introducing CNTs in the Modification Process of Electrochemical Sensors

An Electrochemical Sensor Based on Silver Nanoparticles‐Benzalkonium Chloride for the Voltammetric Determination of Antiviral Drug Tenofovir

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A Non‐enzymatic Hydrogen Peroxide Photoelectrochemical Sensor Based on a BiVO₄ Electrode

A Non‐enzymatic Hydrogen Peroxide Photoelectrochemical Sensor Based on a BiVO₄ Electrode