Mediator-free electrochemical biosensor based on buckypaper with enhanced stability and sensitivity for glucose detection

Ahmadalinezhad, Asieh; Wu, Guosheng; Chen, Aicheng

doi:10.1016/j.bios.2011.09.030

Cited by 32 publications

(26 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Physical sensors include acoustic sensors, force sensors and thermal sensors, and chemical sensors are mainly biosensors, and they are specifically listed in Table 1 (Ahmadalinezhad, Wu and Chen, 2011). It can be seen from Table 1 that the biosensor is a kind of chemical sensors, and its function implementation is essentially different from physical sensor, and it is also different from the principles of other chemical sensors.…”

Section: The Principle Of Biosensorsmentioning

confidence: 99%

Application of Paper-based Glucose Electrochemical Biosensors

2017

Revista Tecnica De La Facultad De Ingenieria Universidad Del Zu

View full text Add to dashboard Cite

This paper first introduces the catalytic electrochemical biosensors, analyses their basic principle as well as the types and so on, and from the angle of experiment, this paper discusses the research and application of paperbased glucose electrochemical biosensors. Two application experiments, namely, the experiment of disposable capillary sampling biamperometry glucose biosensor and biamperometry analysis method on paper-based glucose biosensor according to the injecting process are conducted, and through the analysis and discussion of the experimental results, the final conclusions are reached.

show abstract

Section: The Principle Of Biosensorsmentioning

confidence: 99%

Application of Paper-based Glucose Electrochemical Biosensors

2017

Revista Tecnica De La Facultad De Ingenieria Universidad Del Zu

View full text Add to dashboard Cite

show abstract

“…Enzymes, which are biocatalytic recognition elements are the best known and studied. Recent development has focused on improving the immobilization and stability of the enzymes [57,58]. Enzymes immobilized to nanosized scaffolds such as spheres, fibres and tubes have all recently been reported [59][60][61].…”

Section: Biosensorsmentioning

confidence: 99%

“…A biocompatible mediator-free biosensor was studied and the potential effect of the buckypaper on the stability of the biosensor was assessed. The results showed that the biosensor had a considerable functional lifetime of over 80 days [58]. Greatly enhanced electrochemistry of the enzyme can be observed by the use of nanoparticles, due to the ability of the nanoparticles to reduce the distance between the redox centre of the enzyme and the electrode.…”

Section: Biosensorsmentioning

confidence: 99%

Electroanalytical Sensor Technology

Power¹,

Morrin²

2013

Electrochemistry

View full text Add to dashboard Cite

“…The following Equations (1)- (3) explain the electrocatalytic reduction mechanism of HRP toward H 2 O 2 . HRP, as an oxidative hemecontaining enzyme, cleaves to the O-O bond of hydrogen peroxide to form a first intermediate (compound I), which is an unstable two-equivalent oxidized form containing an oxyferryl heme and a porphyrin cation radical, Compound II is the second intermediate from the first reduction of the porphyrin radical cation, which retains the heme in the ferryl state [47,48].…”

Section: Electrocatalytic Behavior Of Hrp Titaniamentioning

confidence: 99%

Amperometric Hydrogen Peroxide Biosensor Based on Horseradish Peroxidase Entrapped in Titania Sol-Gel Film on Screen-Printed Electrode

Sabzi¹,

Rasouli²,

Kheiri³

2013

AJAC

View full text Add to dashboard Cite

We report the fabrication of disposable and flexible Screen-Printed Electrodes (SPEs). This new type of screen-printed electrochemical platform consists of Ag nanoparticles (AgNPs) and graphite composite. For this purpose, silver nanoparticles were first synthesized by a chemical reduction method. The morphology and structure of the AgNPs were analyzed using a Scanning Electron Microscope (SEM) and UV-Visible spectroscopy. Graphite was chosen as the working electrode material for the fabrication of a thick-film. The fabrication of a screen-printed hydrogen peroxide biosensor consisting of three electrodes on a polyethylene terephthalate (PET) substrate was performed with a spraying approach (working, counter and reference: enzyme electrode, graphite, pseudo reference: Ag/AgCl). This biosensor was fabricated by immobilizing the peroxidase enzyme (HRP) in a Titania sol-gel membrane which was obtained through a vapor deposition method. The biosensor had electrocatalytic activity in the reduction of H 2 O 2 with linear dependence on H 2 O 2 concentration in the range of 10 −5 to 10 −3 M; the detection limit was 4.5 × 10 −6 M.

show abstract

Mediator-free electrochemical biosensor based on buckypaper with enhanced stability and sensitivity for glucose detection

Cited by 32 publications

References 48 publications

Application of Paper-based Glucose Electrochemical Biosensors

Application of Paper-based Glucose Electrochemical Biosensors

Electroanalytical Sensor Technology

Amperometric Hydrogen Peroxide Biosensor Based on Horseradish Peroxidase Entrapped in Titania Sol-Gel Film on Screen-Printed Electrode

Contact Info

Product

Resources

About