An Ultra-Low Detection Limit Glucose Sensor Based on Reduced Graphene Oxide-Concave Tetrahedral Pd NCs@CuO Composite

2019 ◽  
Vol 166 (6) ◽  
pp. B381-B387 ◽  
Author(s):  
Qin Liu ◽  
Yuran Tang ◽  
Xue Yang ◽  
Min Wei ◽  
Mingxiao Zhang
Keyword(s):  
Graphene Oxide ◽  
Detection Limit ◽  
Reduced Graphene Oxide ◽  
Glucose Sensor ◽  
Low Detection Limit ◽  
Reduced Graphene

An Electrochemically Reduced Copper/Reduced Graphene Oxide Film Modified Electrode for Sensitive Non-Enzymatic Glucose Detection in Human Serum

2021 ◽  
Author(s):  
Sopit Phetsang ◽  
Pinit Kidkhunthod ◽  
Narong Chanlek ◽  
Jaroon Jakmunee ◽  
Pitchaya Mungkornasawakul ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Human Serum ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Electrocatalytic Activity ◽  
Glucose Sensor ◽  
Electrochemical Sensors ◽  
High Sensitivity ◽  
Detection Range ◽  
Reduced Graphene

Abstract Numerous studies suggest that modification with functional nanomaterials can enhance the electrode electrocatalytic activity, sensitivity, and selectivity of the electrochemical sensors. Here, a highly sensitive and cost-effective disposable non-enzymatic glucose sensor based on copper(II)/reduced graphene oxide modified screen-printed carbon electrode is demonstrated. Facile fabrication of the developed sensing electrodes is carried out by the adsorption of copper(II) onto graphene oxide modified electrode, then following the electrochemical reduction. The proposed sensor illustrates good electrocatalytic activity toward glucose oxidation with a wide linear detection range from 0.10 mM to 12.5 mM, low detection limit of 65 µM, and high sensitivity of 172 µA mM− 1 cm− 2 along with satisfactory anti-interference ability, reproducibility, stability, and the acceptable recoveries for the detection of glucose in a human serum sample (95.6–106.4%). The copper(II)/reduced graphene oxide based sensor with the superior performances is a great potential for the quantitation of glucose in real samples.

Reduced graphene oxide nanoribbon immobilized gold nanoparticle based electrochemical DNA biosensor for the detection of Mycobacterium tuberculosis

2018 ◽  
Vol 6 (31) ◽  
pp. 5181-5187 ◽  
Author(s):  
Navin Kumar Mogha ◽  
Vikrant Sahu ◽  
Raj Kishore Sharma ◽  
Dhanraj T. Masram
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Graphene Oxide ◽  
Detection Limit ◽  
Gold Nanoparticle ◽  
Reduced Graphene Oxide ◽  
High Specificity ◽  
Dna Biosensor ◽  
Electrochemical Dna Biosensor ◽  
Reduced Graphene ◽  
Very High

A DNA based biosensor is reported with very high specificity to Mycobacterium tuberculosis and a detection limit much superior to those already reported in the literature.

scholarly journals Reduced graphene oxide-supported methylene blue nanocomposite as a glucose oxidase-mimetic for electrochemical glucose sensing

RSC Advances ◽  
2018 ◽  
Vol 8 (57) ◽  
pp. 32565-32573 ◽  
Author(s):  
Shaojun Yang ◽  
Daliang Liu ◽  
Qing Bo Meng ◽  
Shuyao Wu ◽  
Xi-Ming Song
Keyword(s):  
Methylene Blue ◽  
Graphene Oxide ◽  
Glucose Oxidase ◽  
Reduced Graphene Oxide ◽  
Electrocatalytic Activity ◽  
Glucose Sensor ◽  
Glucose Sensing ◽  
Reduced Graphene

A novel electrochemical glucose sensor based on methylene blue-reduced graphene oxide nanocomposite was constructed, and the sensor exhibited good glucose oxidase-mimetic electrocatalytic activity towards glucose and practical applicability.

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