Direct electron transfer of horseradish peroxidase on a functional nanocomplex modified glassy carbon electrode

Xiao, Bao-Lin; Hong, Jun; Gao, Yunfei; Tian, Yang; Moosavi-Movahedi, Ali Akbar; Ghourchian, Hedayatollah

doi:10.3233/bme-130906

Cited by 4 publications

(3 citation statements)

References 21 publications

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“…The peak-to-peak separationswere48, 50, 51, 52, 53 and 55 mV at 50, 100, 150, 200, 250 and 300 mV s − 1 , respectively, and then the k s was calculated to be 4.11 s − 1 according to the Laviron's theory. The electron transfer rate constant (k s ) of this POD/ZrPR 1 R 2 composite electrode was faster than the value reported previously (Xiao et al 2014;Zhao et al 2011;Zhao et al 2008;Kong et al 2003), suggested the electron transfer between POD and glassy carbon electrode was enhanced remarkably by the ZrPR 1 R 2 nanosheets.…”

Section: Direct Electrochemistry Of the Pod/zrpr 1 R 2 Composite Modi...contrasting

confidence: 41%

Determination of the total antioxidant capacity of the Chinese tea based on a novel “peroxidase/zirconium phosphonate” composite electrochemical sensor

Liu

Liang

Dèng

et al. 2022

Preprint

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In this work, a novel zirconium phosphonate (ZrPR1R2) was prepared by decorating both the aminoethoxy- group (R1) and the carboxypropyl- group (R2) on the zirconium phosphate layers in order to manipulate further the immobilization of the peroxidase (POD), and an antioxidant biosensor with higher sensitivity was constructed by dropping the POD/ZrPR1R2 composite onto the glassy carbon electrode surface. The activity of the POD/ZrPR1R2 composite was detected by Uv-vis spectra. The direct electrochemical behavior, the electrocatalytic response to dissolved oxygen and hydrogen peroxide, as well as the ability to detect total antioxidant capacity in tea sample were investigated by the methods of cyclic voltammetry. The results indicated that the immobilization of POD in ZrPR1R2 nanosheets matrix enhanced the enzymatic activity, and achieved the fast and direct electron transfer between POD and glassy carbon electrode. Moreover, the POD/ZrPR1R2 composite modified electrode show the electrocatalytic response to hydrogen peroxide in the linear range of 8.82×10− 8 to 8.82×10− 7mol L− 1, with the detection limit of 3.31×10− 8mol L− 1. Attributing to the sensitive response to dissolved oxygen, the total antioxidant capacity can be detected directly in the real tea water by this POD/ZrPR1R2 composite modified electrode.

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Section: Direct Electrochemistry Of the Pod/zrpr 1 R 2 Composite Modi...contrasting

confidence: 41%

Determination of the total antioxidant capacity of the Chinese tea based on a novel “peroxidase/zirconium phosphonate” composite electrochemical sensor

Liu

Liang

Dèng

et al. 2022

Preprint

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“…Recently, different nano materials have been used in sensors construction, including multi-wall carbon nanotubes (MWCNTs), [21][22][23] Fe 3 O 4 nanoparticles (Fe 3 O 4 ), 24,25 reduced graphene oxide (RGO), [26][27][28] gold nanoparticles (AuNPs), 29 silver nanoparticles (AgNPs), 30 quantum dots (QDs), 31,32 fullerenes (C 60 ), etc. Among them, MWCNTs has attracted much attention because of its physical and chemical properties, such as high electrical conductivity, chemical stability, 33,34 and the ability to promote electron transfer.…”

mentioning

confidence: 99%

A Highly Sensitive Electrochemical Sensor Based on β-cyclodextrin Functionalized Multi-Wall Carbon Nanotubes and Fe₃O₄ Nanoparticles for Rutin Detection

Wen-jun¹,

Xiao²,

Song³

et al. 2022

J. Electrochem. Soc.

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A functionalized nanocomposite composed of multi-wall carbon nanotubes (MWCNTs), Fe3O4 nanoparticles (Fe3O4), and β-cyclodextrin (CD) was prepared. The MWCNTs-CD-Fe3O4 modified glassy carbon electrode (GCE) displayed good electrochemical response toward rutin (Ru). The detection linear range and the detection limit of the electrochemical sensor for Ru were 0.02-10 µM and 16.4 nM, respectively. The results of actual sample detection were consistent with those of ultra-high performance liquid chromatography (UHPLC). The modified materials were also analyzed by UV-visible spectroscopy，transmission electrode microscope, and electrochemical impedance spectroscopy, respectively. The prepared nanocomposites integrate the excellent electric conductivity and electrocatalytic activity of MWCNTs and Fe3O4, as well as the disperse ability of CD, and may play a synergistic role in the electrochemical response of the modified electrode towards Ru. Moreover, the prepared sensor had good anti-interference ability and potential application in the actual content detection of drugs.

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“…The procedure for the preparation of the GCE was as following [13][14][15][16][17][18][19]: At first, the GCE was polished twice with alumina (1.00, 0.30 and 0.05 ȝm, respectively). Then the GCE was treated in 0.2 M H 2 SO 4 .…”

Section: 2 Fabrication Of Il/god/phc Functional Membrane Modified Gcementioning

confidence: 99%

Glucose Biosensing Using Glassy Carbon Electrode Modified with Polyhydroxy-C60, Glucose Oxidase and Ionic-liquid

Tian

Yang

Zhang

et al. 2014

Bio-Medical Materials and Engineering

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Direct electrochemistry of glucose oxidase (GOD) was achieved when an ionic liquid/GOD-Polyhydroxy-C60 functional membrane was confined on a glassy carbon electrode (GCE). The cyclic voltammograms (CVs) of the modified GCE showed a pair of redox peaks with a formal potential (E°') of -329±2 mV. The heterogeneous electron transfer constant (k s ) was 1.43 s-1. The modified GCE response to glucose was linear in the range from 0.02 to 2.0 mM. The detection limit was 1 ȝM. The apparent Michaelis-Menten constant (K m app ) was 1.45 mM.

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Direct electron transfer of horseradish peroxidase on a functional nanocomplex modified glassy carbon electrode

Cited by 4 publications

References 21 publications

Determination of the total antioxidant capacity of the Chinese tea based on a novel “peroxidase/zirconium phosphonate” composite electrochemical sensor

Determination of the total antioxidant capacity of the Chinese tea based on a novel “peroxidase/zirconium phosphonate” composite electrochemical sensor

A Highly Sensitive Electrochemical Sensor Based on β-cyclodextrin Functionalized Multi-Wall Carbon Nanotubes and Fe₃O₄ Nanoparticles for Rutin Detection

Glucose Biosensing Using Glassy Carbon Electrode Modified with Polyhydroxy-C60, Glucose Oxidase and Ionic-liquid

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Direct electron transfer of horseradish peroxidase on a functional nanocomplex modified glassy carbon electrode

Cited by 4 publications

References 21 publications

Determination of the total antioxidant capacity of the Chinese tea based on a novel “peroxidase/zirconium phosphonate” composite electrochemical sensor

Determination of the total antioxidant capacity of the Chinese tea based on a novel “peroxidase/zirconium phosphonate” composite electrochemical sensor

A Highly Sensitive Electrochemical Sensor Based on β-cyclodextrin Functionalized Multi-Wall Carbon Nanotubes and Fe3O4 Nanoparticles for Rutin Detection

Glucose Biosensing Using Glassy Carbon Electrode Modified with Polyhydroxy-C60, Glucose Oxidase and Ionic-liquid

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A Highly Sensitive Electrochemical Sensor Based on β-cyclodextrin Functionalized Multi-Wall Carbon Nanotubes and Fe₃O₄ Nanoparticles for Rutin Detection