Colorimetric method for glucose detection with enhanced signal intensity using ZnFe2O4–carbon nanotube–glucose oxidase composite material

The Analyst ◽  
2019 ◽  
Vol 144 (5) ◽  
pp. 1831-1839 ◽  
Author(s):  
Chengke Wang ◽  
Jiangyu Li ◽  
Rong Tan ◽  
Qingqing Wang ◽  
Zexiang Zhang
Keyword(s):  
Composite Material ◽  
Carbon Nanotube ◽  
Glucose Oxidase ◽  
Signal Intensity ◽  
Colorimetric Method ◽  
Sensitive Detection ◽  
Glucose Detection ◽  
Peroxidase Mimic

Preparation of peroxidase-mimic ZnFe2O4–carbon nanotube (CNT)–glucose oxidase (GOD) composite material for sensitive detection of glucose.

Copper nanoparticles modified graphitic carbon nitride nanosheets as a peroxidase mimetic for glucose detection

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91302-91307 ◽  
Author(s):  
Nan Wang ◽  
Zhenwei Han ◽  
Hai Fan ◽  
Shiyun Ai
Keyword(s):  
Copper Nanoparticles ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Sensitive Detection ◽  
Glucose Detection ◽  
Peroxidase Mimic ◽  
Peroxidase Mimetic ◽  
Carbon Nitride Nanosheets

Cu NPs/g-C3N4 was successfully prepared by the calcination of dicyandiamide–Cu2+ complex as a peroxidase mimic for sensitive detection of glucose.

Glucose Oxidase Decorated Fluorescent Metal-Organic Frameworks as Biomimetic Cascade Nanozymes for Glucose Detection Through Inner Filter Effect

The Analyst ◽  
2021 ◽  
Author(s):  
Xiaohong Li ◽  
Wenjie Jing ◽  
Fanbo Kong ◽  
Sijia Tian ◽  
Mincong Yu ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Metal Organic Frameworks ◽  
Inner Filter Effect ◽  
Glucose Detection ◽  
Peroxidase Mimic ◽  
Filter Effect ◽  
Metal Organic ◽  
One Step ◽  
Loading Amount

The metal-organic frameworks (MOFs) as a peroxidase mimic was applied for integrating glucose oxidase (GOx) to achieve one-step glucose detection. However, limited by the loading amount of GOx, the performance...

scholarly journals Colorimetric Analysis of Glucose Oxidase-Magnetic Cellulose Nanocrystals (CNCs) for Glucose Detection

Sensors ◽  
2019 ◽  
Vol 19 (11) ◽  
pp. 2511 ◽  
Author(s):  
Ying Chuin Yee ◽  
Rokiah Hashim ◽  
Ahmad Ramli Mohd Yahya ◽  
Yazmin Bustami
Keyword(s):  
Glucose Oxidase ◽  
Cellulose Nanocrystals ◽  
Self Assembly ◽  
Colorimetric Method ◽  
Glucose Monitoring ◽  
Coupling Reaction ◽  
Glucose Detection ◽  
Colorimetric Analysis ◽  
Assembly Technique ◽  
Potential Use

Glucose oxidase (EC 1.1.3.4) sensors that have been developed and widely used for glucose monitoring have generally relied on electrochemical principle. In this study, the potential use of colorimetric method for glucose detection utilizing glucose oxidase-magnetic cellulose nanocrystals (CNCs) is explored. Magnetic cellulose nanocrystals (magnetic CNCs) were fabricated using iron oxide nanoparticles (IONPs) and cellulose nanocrystals (CNCs) via electrostatic self-assembly technique. Glucose oxidase was successfully immobilized on magnetic CNCs using carbodiimide-coupling reaction. About 33% of GOx was successfully attached on magnetic CNCs, and the affinity of GOx-magnetic CNCs to glucose molecules was slightly higher than free enzymes. Furthermore, immobilization does not affect the specificity of GOx-magnetic CNCs towards glucose and can detect glucose from 0.25 mM to 2.5 mM. Apart from that, GOx-magnetic CNCs stored at 4 °C for 4 weeks retained 70% of its initial activity and can be recycled for at least ten consecutive cycles.

scholarly journals Mesoporous MnFe2O4 magnetic nanoparticles as a peroxidase mimic for the colorimetric detection of urine glucose

RSC Advances ◽  
2021 ◽  
Vol 11 (45) ◽  
pp. 28375-28380
Author(s):  
Ke Liu ◽  
Jiaxing Su ◽  
Jiangong Liang ◽  
Yuan Wu
Keyword(s):  
Magnetic Nanoparticles ◽  
Glucose Oxidase ◽  
Colorimetric Detection ◽  
Glucose Detection ◽  
Peroxidase Mimic ◽  
Urine Glucose

Schematic illustration of glucose detection with glucose oxidase (GOx) and mMnFe2O4 MNPs-catalyzed system.

Ultrasensitive Glucose Detection From Tears And Saliva Through Integrated Glucose Oxidase-Coupled DNAzyme and CRISPR-Cas12a

The Analyst ◽  
2021 ◽  
Author(s):  
Caiying Zhang ◽  
Hongfeng Yao ◽  
Qiang Ma ◽  
Bin Yu
Keyword(s):  
Glucose Oxidase ◽  
Detection Method ◽  
Sensitive Detection ◽  
Clinical Samples ◽  
Glucose Detection

The accurate and sensitive detection of glucose from secretory clinical samples, such as tears and saliva, remains a big challenge. In this research, a novel ultrasensitive glucose detection method composed...

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

Electrochemistry of glucose oxidase immobilized on the carbon nanotube wrapped by polyelectrolyte

2007 ◽  
Vol 52 (16) ◽  
pp. 5312-5317 ◽  
Author(s):  
Dan Wen ◽  
Ying Liu ◽  
Guocheng Yang ◽  
Shaojun Dong
Keyword(s):  
Carbon Nanotube ◽  
Glucose Oxidase
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