A hydrogen peroxide biosensor based on direct electron transfer from hemoglobin to an electrode modified with Nafion and activated nanocarbon

Song, Jié; Xu, Jiming; Zhao, Pusu; Lu, Lude; Bao, Jianchun

doi:10.1007/s00604-010-0470-6

Cited by 44 publications

(19 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nafion has demonstrated fascinating properties such as excellent antifouling capacity, good biocompatibility, efficient chemical stability and good discrimination ability against interferences that make it as a suitable candidate for the preparation of the modified electrodes 28, 32. Regarding their attractive effects in the electroanalytical applications, N/CNPs composite thin film‐modified electrodes have been used as electrochemical sensors for the trace detection of hydrogen peroxide 53. Nafion has been applied as the modifier for determination of DBA 54, but no investigation has been reported on the voltammetric determination of DBA by N/CNP composite film‐modified electrodes.…”

Section: Introductionsupporting

confidence: 63%

Selective Electrocatalytic Oxidation of Sorbitol to Fructose and Sorbose

et al. 2014

View full text Add to dashboard Cite

show abstract

Section: Introductionsupporting

confidence: 63%

Selective Electrocatalytic Oxidation of Sorbitol to Fructose and Sorbose

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The stability, reproducibility and repeatability of a biosensor response constitutes a critical factor in the fabrication of biosensors 4. The stability of the biosensor was first examined using cyclic voltammetry in 0.1 M phosphate buffer solution (pH 7.0).…”

Section: Resultsmentioning

confidence: 99%

“…The proper immobilization of redox proteins on various materials to study their electrochemistry on electrodes is a subject of considerable interest in chemical, environmental and biological applications. Information obtained from such electrochemical studies has been reported to provide a good model for understanding the structure, sensing mechanisms, and the strategies for fabricating biosensors 1–4. However, the transfer of electrons on enzymes with conventional electrodes has been reported to present some difficulties 5.…”

Section: Introductionmentioning

confidence: 99%

A Novel Hydrogen Peroxide Biosensor Based on Adsorption of Horseradish Peroxidase onto a Nanobiomaterial Composite Modified Glassy Carbon Electrode

Moyo¹,

Okonkwo²,

Agyei³

2013

Electroanalysis

View full text Add to dashboard Cite

In this work, a novel hydrogen peroxide biosensor derived from maize tassel (MT) and multiwalled carbon nanotube (MWCNT) composite was used to adsorb horseradish peroxidase (HRP) onto the surface of a glassy carbon electrode through electrostatic interactions. The morphology and structure of the products were characterized by SEM, FTIR and UV‐visible spectroscopy. The electrochemical and electrocatalytic performance of the HRP/MT‐MWCNT/GCE was studied using voltammetric and amperometric methods. The amperometric response of the biosensor varied linearly with concentration of H2O2 from 9 µM to 1 mM with detection limit of 4.0 µM (S/N=3). Furthermore, the biosensor exhibited good reproducibility and stability.

show abstract

“…The larger peak-to-peak separation is probably due to the immobilization of the biomolecules in different orientations [46]. Such a result may be ascribed that Au nanoparticles play an important role in facilitating the direct electron transfer of Cyt c by the synergism with Nafion [45,47].…”

Section: Electrochemical Behavior Of the Modified Electrodementioning

confidence: 86%

ITO electrode modified by a gold ion implantation technique for direct electrocatalytic sensing of hydrogen peroxide

et al. 2012

View full text Add to dashboard Cite

We report on a simple strategy for the fabrication of gold nanoparticles (AuNPs) on an indium tin oxide substrate using a modified ion implantation method. The morphology, structure and electrochemical features of AuNPs were characterized by atomic force microscopy, electrochemical impedance spectroscopy and cyclic voltammetry. The modified electrode has a large electrochemically active surface and enables strong loading with cytochrome c (Cyt c) proteins. It undergoes enhanced electron transfer at uncompromised electrochemical activity, and also displays good stability and repeatability. The immobilized Cyt c exhibits good electrocatalytic activity towards hydrogen peroxide (H 2 O 2 ), with a linear relationship between the catalytic current during differential pulse voltammetry and the concentration of H 2 O 2 in the 0.05 μM to 0.2 μM range. The detection limit (S/N 0 3) is 0.01 μM.

show abstract

A hydrogen peroxide biosensor based on direct electron transfer from hemoglobin to an electrode modified with Nafion and activated nanocarbon

Cited by 44 publications

References 33 publications

Selective Electrocatalytic Oxidation of Sorbitol to Fructose and Sorbose

Selective Electrocatalytic Oxidation of Sorbitol to Fructose and Sorbose

A Novel Hydrogen Peroxide Biosensor Based on Adsorption of Horseradish Peroxidase onto a Nanobiomaterial Composite Modified Glassy Carbon Electrode

ITO electrode modified by a gold ion implantation technique for direct electrocatalytic sensing of hydrogen peroxide

Contact Info

Product

Resources

About