Voltammetric glucose biosensor based on glucose oxidase encapsulation in a chitosan-kappa-carrageenan polyelectrolyte complex

2019 ◽  
Vol 95 ◽  
pp. 152-159 ◽  
Author(s):  
Ilhem Rassas ◽  
Mohamed Braiek ◽  
Anne Bonhomme ◽  
Francois Bessueille ◽  
Guy Rafin ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Polyelectrolyte Complex ◽  
Glucose Biosensor ◽  
Kappa Carrageenan

scholarly journals Highly Sensitive Voltammetric Glucose Biosensor Based on Glucose Oxidase Encapsulated in a Chitosan/Kappa-Carrageenan/Gold Nanoparticle Bionanocomposite

2018 ◽  
Author(s):  
Nicole Jaffrezic-Renault ◽  
Ilhem Rassas ◽  
Mohamed Braiek ◽  
Anne Bonhomme ◽  
François Bessueille ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Modified Electrode ◽  
Gold Electrode ◽  
Polyelectrolyte Complex ◽  
Glucose Sensing ◽  
Glucose Biosensor ◽  
Good Reproducibility ◽  
Highly Sensitive ◽  
Kappa Carrageenan ◽  
Higher Sensitivity

In this work, an enzymatic sensor, based on a bionanocomposite film consisting of a polyelectrolyte complex (PEC) [Chitosan/kappa-carrageenan] doped with gold nanoparticles (AuNPs) encapsulating glucose oxidase (GOD) deposited on a gold electrode (Au) for glucose sensing, is described. Using the electrocatalytic synergy of AuNPs and GOD as a model of enzyme, the variation of the current (µA) as a function of the log of the glucose concentration (log [glucose]), shows 3 times higher sensitivity for the modified electrode (283.9) compared to that of the PEC/GOD modified electrode (93.7), with a detection limit of about 5 µM and a linearity range between 10µM and 7mM. The response of the PEC/AuNPs/GOD based biosensor also presents good reproducibility, stability and negligible interfering effects from ascorbic acid, uric acid, urea and creatinine. The applicability of the PEC/AuNPs/GOD based biosensor was tested in glucose-spiked saliva samples and acceptable recovery rates were obtained.

scholarly journals Highly Sensitive Voltammetric Glucose Biosensor Based on Glucose Oxidase Encapsulated in a Chitosan/Kappa-Carrageenan/Gold Nanoparticle Bionanocomposite

Sensors ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 154 ◽  
Author(s):  
Ilhem Rassas ◽  
Mohamed Braiek ◽  
Anne Bonhomme ◽  
Francois Bessueille ◽  
Guy Raffin ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Modified Electrode ◽  
Gold Electrode ◽  
Polyelectrolyte Complex ◽  
Glucose Sensing ◽  
Glucose Biosensor ◽  
Good Reproducibility ◽  
Highly Sensitive ◽  
Kappa Carrageenan ◽  
Higher Sensitivity

In this work, an enzymatic sensor, based on a bionanocomposite film consisting of a polyelectrolyte complex (PEC) (Chitosan/kappa-carrageenan) doped with gold nanoparticles (AuNPs) encapsulating glucose oxidase (GOD) deposited on a gold electrode (Au) for glucose sensing, is described. Using the electrocatalytic synergy of AuNPs and GOD as a model of enzyme, the variation of the current (µA) as a function of the log of the glucose concentration (log [glucose]), shows three times higher sensitivity for the modified electrode (283.9) compared to that of the PEC/GOD modified electrode (93.7), with a detection limit of about 5 µM and a linearity range between 10 µM and 7 mM. The response of the PEC/AuNPs/GOD based biosensor also presents good reproducibility, stability, and negligible interfering effects from ascorbic acid, uric acid, urea, and creatinine. The applicability of the PEC/AuNPs/GOD based biosensor was tested in glucose-spiked saliva samples and acceptable recovery rates were obtained.

Temperature-induced amperometric glucose biosensor based on a poly(N-vinylcaprolactam)/graphene oxide composite film

The Analyst ◽  
2019 ◽  
Vol 144 (6) ◽  
pp. 1960-1967 ◽  
Author(s):  
Chao Chen ◽  
Pengcheng Zhao ◽  
Meijun Ni ◽  
Chunyan Li ◽  
Yixi Xie ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Film ◽  
Glucose Oxidase ◽  
Glassy Carbon Electrode ◽  
Glassy Carbon ◽  
Glucose Biosensor ◽  
Carbon Electrode ◽  
Oxide Composite

A temperature-induced sensing film consisting of poly(N-vinylcaprolactam) (PVCL), graphene oxide (GO) and glucose oxidase (GOD) was fabricated and used to modify a glassy carbon electrode (GCE).

scholarly journals Biosensing Membrane Base on Ferulic Acid and Glucose Oxidase for an Amperometric Glucose Biosensor

Molecules ◽  
2021 ◽  
Vol 26 (12) ◽  
pp. 3757
Author(s):  
Gabriela Valdés-Ramírez ◽  
Laura Galicia
Keyword(s):  
Ferulic Acid ◽  
Glucose Oxidase ◽  
Aqueous Media ◽  
Glucose Biosensor ◽  
Single Step ◽  
Coefficient Of Determination ◽  
The Novel ◽  
Carbon Paste ◽  
Glucose Response ◽  
Glucose Biosensors

A biosensing membrane base on ferulic acid and glucose oxidase is synthesized onto a carbon paste electrode by electropolymerization via cyclic voltammetry in aqueous media at neutral pH at a single step. The developed biosensors exhibit a linear response from 0.082 to 34 mM glucose concentration, with a coefficient of determination R2 equal to 0.997. The biosensors display a sensitivity of 1.1 μAmM−1 cm−2, a detection limit of 0.025 mM, and 0.082 mM as glucose quantification limit. The studies reveal stable, repeatable, and reproducible biosensors response. The results indicate that the novel poly-ferulic acid membrane synthesized by electropolymerization is a promising method for glucose oxidase immobilization towards the development of glucose biosensors. The developed glucose biosensors exhibit a broader linear glucose response than other polymer-based glucose biosensors.

Gold nanoparticles-coated eggshell membrane with immobilized glucose oxidase for fabrication of glucose biosensor

2011 ◽  
Vol 152 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Baozhan Zheng ◽  
Shunping Xie ◽  
Lei Qian ◽  
Hongyan Yuan ◽  
Dan Xiao ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Glucose Oxidase ◽  
Glucose Biosensor ◽  
Eggshell Membrane ◽  
Immobilized Glucose Oxidase

A Glucose Biosensor Based on Immobilization of Glucose Oxidase in Chitosan Network Matrix

2005 ◽  
Vol 23 (3) ◽  
pp. 275-279 ◽  
Author(s):  
Yao Hui ◽  
Li Nan ◽  
Xu Jing-Zhong ◽  
Zhu Jun-Jie
Keyword(s):  
Glucose Oxidase ◽  
Glucose Biosensor

Amperometric glucose biosensor based on silver nanowires and glucose oxidase

2013 ◽  
Vol 176 ◽  
pp. 9-14 ◽  
Author(s):  
Lisha Wang ◽  
Xia Gao ◽  
Lingyan Jin ◽  
Qi Wu ◽  
Zhichun Chen ◽  
...  
Keyword(s):  
Glucose Oxidase ◽  
Silver Nanowires ◽  
Glucose Biosensor

scholarly journals Electrodeposition–Assisted Assembled Multilayer Films of Gold Nanoparticles and Glucose Oxidase onto Polypyrrole-Reduced Graphene Oxide Matrix and Their Electrocatalytic Activity toward Glucose

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 993 ◽  
Author(s):  
Baoyan Wu ◽  
Shihua Hou ◽  
Yongyong Xue ◽  
Zhan Chen
Keyword(s):  
Gold Nanoparticles ◽  
Graphene Oxide ◽  
Glucose Oxidase ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Electrocatalytic Activity ◽  
Multilayer Films ◽  
Glucose Biosensor ◽  
Future Design ◽  
Reduced Graphene

The study reports a facile and eco-friendly approach for nanomaterial synthesis and enzyme immobilization. A corresponding glucose biosensor was fabricated by immobilizing the gold nanoparticles (AuNPs) and glucose oxidase (GOD) multilayer films onto the polypyrrole (PPy)/reduced graphene oxide (RGO) modified glassy carbon electrode (GCE) via the electrodeposition and self-assembly. PPy and graphene oxide were first coated on the surface of a bare GCE by the electrodeposition. Then, AuNPs and GOD were alternately immobilized onto PPy-RGO/GCE electrode using the electrodeposition of AuNPs and self-assembly of GOD to obtain AuNPs-GOD multilayer films. The resulting PPy-RGO-(AuNPs-GOD)n/GCE biosensors were used to characterize and assess their electrocatalytic activity toward glucose using cyclic voltammetry and amperometry. The response current increased with the increased number of AuNPs-GOD layers, and the biosensor based on four layers of AuNPs-GOD showed the best performance. The PPy-RGO-(AuNPs-GOD)4/GCE electrode can detect glucose in a linear range from 0.2 mM to 8 mM with a good sensitivity of 0.89 μA/mM, and a detection limit of 5.6 μM (S/N = 3). This study presents a promising eco-friendly biosensor platform with advantages of electrodeposition and self-assembly, and would be helpful for the future design of more complex electrochemical detection systems.

A simple electrochemical approach to fabricate a glucose biosensor based on graphene–glucose oxidase biocomposite

2013 ◽  
Vol 39 (1) ◽  
pp. 70-75 ◽  
Author(s):  
Binesh Unnikrishnan ◽  
Selvakumar Palanisamy ◽  
Shen-Ming Chen
Keyword(s):  
Glucose Oxidase ◽  
Glucose Biosensor ◽  
Electrochemical Approach
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