Preparation of graphene nano-sheet bonded PDA/MOF microcapsules with immobilized glucose oxidase as a mimetic multi-enzyme system for electrochemical sensing of glucose

2016 ◽  
Vol 4 (21) ◽  
pp. 3695-3702 ◽  
Author(s):  
Yang Wang ◽  
Chen Hou ◽  
Yun Zhang ◽  
Fu He ◽  
Mingzhu Liu ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Enzyme System ◽  
Metal Organic Frameworks ◽  
Amperometric Biosensor ◽  
Electrochemical Sensing ◽  
Glucose Detection ◽  
Metal Organic ◽  
Immobilized Glucose Oxidase

A novel amperometric biosensor for glucose detection was fabricated based on a mimetic multi-enzyme system by combing mimetic enzymes (metal–organic frameworks, MOFs) and glucose oxidase (GOx).

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...

Development of Au-Pd@UiO-66-on-ZIF-L/CC as a self-supported electrochemical sensor for in situ monitoring of cellular hydrogen peroxide

2021 ◽  
Author(s):  
Jilin Zheng ◽  
Peng Zhao ◽  
Shiying Zhou ◽  
Sha Chen ◽  
Yi Liang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electrochemical Sensor ◽  
Noble Metals ◽  
Electrochemical Sensors ◽  
Metal Organic Frameworks ◽  
Electrochemical Sensing ◽  
In Situ Monitoring ◽  
Metal Organic

Integrating metal-organic frameworks (MOFs) of different components or structures together and exploiting them as electrochemical sensors for electrochemical sensing have aroused great interest. And the incorporation of noble metals with...

A high-performance Co-MOF non-enzymatic electrochemical sensor for glucose detection

2021 ◽  
Author(s):  
Zhen-Zhen Ma ◽  
Yao Ma ◽  
Bing Liu ◽  
Ling Xu ◽  
Huan Jiao
Keyword(s):  
Electrochemical Sensor ◽  
Terephthalic Acid ◽  
High Performance ◽  
Metal Organic Frameworks ◽  
Deep Eutectic Solvents ◽  
Cobalt Metal ◽  
Glucose Detection ◽  
Metal Organic

Two cobalt metal-organic frameworks (Co-MOFs), [Ch]2[Co3(BDC)3Cl2] (1) and [Ch]2[Co3(BDC)4]·2DMU (2) (Ch+ = choline cation; H2BDC = terephthalic acid; DMU = 1,3-dimethylurea), were prepared through ionothermal reactions with deep eutectic solvents...

A point-of-care diagnostics logic detector based on glucose oxidase immobilized lanthanide functionalized metal–organic frameworks

Nanoscale ◽  
2019 ◽  
Vol 11 (47) ◽  
pp. 22946-22953 ◽  
Author(s):  
Yu Zhang ◽  
Bing Yan
Keyword(s):  
Glucose Oxidase ◽  
Point Of Care ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Surface Attachment ◽  
Point Of Care Diagnostics ◽  
Metal Organic ◽  
Attachment Strategy ◽  
Organic Framework

In this work, a novel lanthanide functionalized metal organic framework enzyme (L-MOF-enzyme) composite has been first prepared via a surface attachment strategy between Eu3+@UMOF and glucose oxidase (GOx).

Multifunctional Encapsulating Gold Nanoparticles into Cu-Hemin/Metal-Organic Frameworks for Catechol Electrochemical Detection on Graphene-Based Electrode

NANO ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. 2050155
Author(s):  
Beibei Wang ◽  
Kai Kang ◽  
Xueping Ji ◽  
Yuheng Liu ◽  
Xianrui Li ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Metal Organic Frameworks ◽  
Surface Characteristics ◽  
Electrical Signal ◽  
Electrochemical Sensing ◽  
Experimental Conditions ◽  
Current Time ◽  
Glass Carbon Electrode ◽  
Electrochemically Reduced Graphene Oxide ◽  
Metal Organic

A new type of multifunctional metal-organic frameworks (MOFs) was synthesized by encapsulating gold nanoparticles (AuNPs) into the Cu-hemin MOFs, and first applied to an electrochemical sensor to detect catechol (CT) with the aid of electrochemically reduced graphene oxide (ERGO) for signal amplification. First, ERGO was electrochemically deposited on a bare glass carbon electrode (GCE), followed by casting Cu-hemin MOFs on an ERGO-modified electrode, and then growing AuNPs in situ on Cu-hemin MOFs/ERGO/GCE by electrochemical deposition. Cyclic voltammetry (CV), scanning electron microscopy (SEM) and current–time ([Formula: see text]–[Formula: see text] were utilized to characterize the electrochemical performance and surface characteristics of the as-prepared sensor. The results demonstrated that Cu-hemin MOFs have not only been a matrix to avoid the aggregation of AuNPs but also an ideal loading platform for the adsorption of CT due to its large surface area and porosity. In addition, the ERGO also has the advantage of fast electron transfer, which can make synergy with AuNPs@Cu-hemin MOFs nanocomposites to amplify the electrical signal. The AuNPs/Cu-hemin MOFs/ERGO/GCE exhibited an excellent electrocatalytic activity with increased electrochemical signals towards the oxidation of CT. Under the optimum experimental conditions, the sensor shows a wide linear relationship over the range of [Formula: see text][Formula: see text]M to [Formula: see text][Formula: see text]M with a detection limit of [Formula: see text][Formula: see text]M. Moreover, the sensor presented the good reproducibility and the excellent anti-interference performance. This work would broaden the application of MOFs material in constructing more novel electrochemical sensing platform.

Facile synthesis of metal–organic framework-derived SiW12@Co3O4 and its peroxidase-like activity in colorimetric assay

The Analyst ◽  
2019 ◽  
Vol 144 (18) ◽  
pp. 5455-5461 ◽  
Author(s):  
Wei Shi ◽  
Shuang E ◽  
Meng-Meng Wang ◽  
Tian-Ze Li ◽  
Ting Yang ◽  
...  
Keyword(s):  
Colorimetric Assay ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Glucose Detection ◽  
Facile Synthesis ◽  
One Pot ◽  
Metal Organic ◽  
Excellent Stability ◽  
Organic Framework

Metal–organic frameworks-derived SiW12@Co3O4 with a highly inherent peroxidase-like activity and excellent stability was synthesized. A SiW12@Co3O4-based method was successfully developed for H2O2 and one-pot glucose detection.

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