Metallophthalocyanines and metalloporphyrins as electrocatalysts: a case of hydrogen peroxide and glucose detection

2012 ◽  
Vol 16 (07n08) ◽  
pp. 741-753 ◽  
Author(s):  
Philani N. Mashazi ◽  
Nolwazi Nombona ◽  
Munkombwe Muchindu ◽  
Sibulelo Vilakazi
Keyword(s):  
Hydrogen Peroxide ◽  
Glucose Oxidase ◽  
Glucose Detection ◽  
Modified Surfaces ◽  
Electron Mediators

This review summarizes the applications of metallophthalocyanine (MPc) and metallo-porphyrin (MP) complexes as electrocatalysts immobilized onto various electrodes for the detection of hydrogen peroxide and glucose. The uses of MPc and MP complexes as electron mediators for the detection of glucose at glucose oxidase modified surfaces are discussed.

scholarly journals Glucose oxidase immobilization on different modified surfaces of platinum nanowire for application in glucose detection

2010 ◽  
Vol 1 (3) ◽  
pp. 035004 ◽  
Author(s):  
Thi Thanh Tuyen Le ◽  
Phu Duy Tran ◽  
Xuan Tung Pham ◽  
Duy Hien Tong ◽  
Mau Chien Dang
Keyword(s):  
Glucose Oxidase ◽  
Glucose Detection ◽  
Modified Surfaces

scholarly journals Electrochemical Response of Glucose Oxidase Adsorbed on Laser-Induced Graphene

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1893
Author(s):  
Sónia O. Pereira ◽  
Nuno F. Santos ◽  
Alexandre F. Carvalho ◽  
António J. S. Fernandes ◽  
Florinda M. Costa
Keyword(s):  
Electron Transfer ◽  
Glucose Oxidase ◽  
Ph Dependence ◽  
High Surface ◽  
High Surface Area ◽  
Cost Effective ◽  
Great Promise ◽  
Glucose Detection ◽  
Half Wave ◽  
Electrochemical Transducers

Carbon-based electrodes have demonstrated great promise as electrochemical transducers in the development of biosensors. More recently, laser-induced graphene (LIG), a graphene derivative, appears as a great candidate due to its superior electron transfer characteristics, high surface area and simplicity in its synthesis. The continuous interest in the development of cost-effective, more stable and reliable biosensors for glucose detection make them the most studied and explored within the academic and industry community. In this work, the electrochemistry of glucose oxidase (GOx) adsorbed on LIG electrodes is studied in detail. In addition to the well-known electroactivity of free flavin adenine dinucleotide (FAD), the cofactor of GOx, at the expected half-wave potential of −0.490 V vs. Ag/AgCl (1 M KCl), a new well-defined redox pair at 0.155 V is observed and shown to be related to LIG/GOx interaction. A systematic study was undertaken in order to understand the origin of this activity, including scan rate and pH dependence, along with glucose detection tests. Two protons and two electrons are involved in this reaction, which is shown to be sensitive to the concentration of glucose, restraining its origin to the electron transfer from FAD in the active site of GOx to the electrode via direct or mediated by quinone derivatives acting as mediators.

Immobilization of Glucose Oxidase on Plasma-Treated Polyethylene for Non-Invasive Glucose Detection

2021 ◽  
pp. 115509
Author(s):  
Georgina Fabregat ◽  
Sonia Lanzalaco ◽  
Jules Aït Saïd ◽  
Xavier Muñoz-Pascual ◽  
Jordi Llorca ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Glucose Detection ◽  
Non Invasive

Evaluation of Hierarchical Glucose Oxidase/Co3Mn-CO3 LDH Modified Electrodes for Glucose Detection

2021 ◽  
pp. 138050
Author(s):  
Hani Farhat ◽  
Joel Célier ◽  
Claude Forano ◽  
Christine Mousty
Keyword(s):  
Glucose Oxidase ◽  
Modified Electrodes ◽  
Glucose Detection

scholarly journals Enzymatically triggered rupture of polymersomes

Soft Matter ◽  
2016 ◽  
Vol 12 (4) ◽  
pp. 1014-1020 ◽  
Author(s):  
Woo-Sik Jang ◽  
Seung Chul Park ◽  
Ellen H. Reed ◽  
Kevin P. Dooley ◽  
Samuel F. Wheeler ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Glucose Oxidase

Polymersomes are robust vesicles made from di-block co-polymers. We have engineered a two step enzymatic cascade to trigger the release of contents from polymersomes, in which extravesicular glucose oxidase makes hydrogen peroxide, when then penetrates the membrane and is converted by entrapped catalase to oxygen, leading to vesicle failure.

Glucose Biosensor Based on Glucose Oxidase-Horseradish Peroxidase/Multiporous Tin Oxide (SnO2) Modified Electrode

2021 ◽  
Vol 21 (5) ◽  
pp. 3059-3064
Author(s):  
A. K. M. Kafi ◽  
Aizam Bin Kasri ◽  
Rajan Jose
Keyword(s):  
Horseradish Peroxidase ◽  
Glucose Oxidase ◽  
Tin Oxide ◽  
Electrode Potential ◽  
High Sensitivity ◽  
Glucose Biosensor ◽  
Glucose Detection ◽  
Lower Detection Limit ◽  
Vis Spectroscopy ◽  
Lower Detection

The fabrication of a network of glucose oxidase-horseradish peroxidase/tin oxide (GOx-HRP/SnO2), immobilized onto a glassy carbon electrode (GCE) and its utilization as a biosensor for glucose detection is reported. The network established with GOx-HRP/SnO2 possess high sensitivity and stability by performing the electrocatalytic features in the sensing of glucose. The turbidity of fabrication had been scanned and analyzed using UV-vis spectroscopy. The morphology and composition of the fabricated GOx-HRP/SnO2 networks were characterized by scanning electron microscopy (SEM). Cyclic voltammetry and amperometry were employed to study the electrochemical properties of the proposed biosensor. The effect of applied electrode potential and pH were systemically investigated. The biosensor responds to glucose at work potential values between −400 mV, and exhibited a lower detection limit (0.025 mM) and long linear range (0.25 to 7.0 mM), and was resistant to common interferences.

Electrochemiluminescent detection of glucose in human serum by BODIPY-based chemodosimeters for hydrogen peroxide using accelerated self-immolation of boronates

2020 ◽  
Vol 56 (55) ◽  
pp. 7577-7580
Author(s):  
Yon Namkoong ◽  
Jinrok Oh ◽  
Jong-In Hong
Keyword(s):  
Hydrogen Peroxide ◽  
Human Serum ◽  
Glucose Detection ◽  
Self Immolation

BODIPY-based ECL chemodosimeters for H2O2 were developed and applied for glucose detection in human serum in combination with GOx.

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