A non-enzymatic ethanol sensor based on a nanostructured catalytic disposable electrode

2017 ◽  
Vol 9 (35) ◽  
pp. 5108-5114 ◽  
Author(s):  
Marta M. Pereira Silva Neves ◽  
M. Begoña González-García ◽  
Pablo Bobes-Limenes ◽  
Alejandro Pérez-Junquera ◽  
David Hernández-Santos ◽  
...  
Keyword(s):  
Platinum Nanoparticles ◽  
Carbon Electrodes ◽  
Ethanol Sensor ◽  
Real Samples ◽  
Disposable Electrode ◽  
Screen Printed

Disposable screen-printed carbon electrodes modified with platinum nanoparticles were employed in the electrocatalytic detection of ethanol. The developed non-enzymatic ethanol sensor was applied to real samples.

scholarly journals Highly sensitive H2O2 sensor based on poly(azure A)-platinum nanoparticles deposited on activated screen printed carbon electrodes

2019 ◽  
Vol 298 ◽  
pp. 126878 ◽  
Author(s):  
Rebeca Jiménez-Pérez ◽  
José González-Rodríguez ◽  
María-Isabel González-Sánchez ◽  
Beatriz Gómez-Monedero ◽  
Edelmira Valero
Keyword(s):  
Platinum Nanoparticles ◽  
Carbon Electrodes ◽  
Azure A ◽  
H2o2 Sensor ◽  
Highly Sensitive ◽  
Screen Printed

scholarly journals Glucose Biosensor Based on Disposable Activated Carbon Electrodes Modified with Platinum Nanoparticles Electrodeposited on Poly(Azure A)

Sensors ◽  
2020 ◽  
Vol 20 (16) ◽  
pp. 4489 ◽  
Author(s):  
Francisco Jiménez-Fiérrez ◽  
María Isabel González-Sánchez ◽  
Rebeca Jiménez-Pérez ◽  
Jesús Iniesta ◽  
Edelmira Valero
Keyword(s):  
Platinum Nanoparticles ◽  
High Performance ◽  
Electrochemical Biosensor ◽  
Limit Of Detection ◽  
Electrochemical Measurement ◽  
Glucose Biosensor ◽  
Carbon Electrodes ◽  
Real Samples ◽  
Glucose Determination ◽  
Azure A

Herein, a novel electrochemical glucose biosensor based on glucose oxidase (GOx) immobilized on a surface containing platinum nanoparticles (PtNPs) electrodeposited on poly(Azure A) (PAA) previously electropolymerized on activated screen-printed carbon electrodes (GOx-PtNPs-PAA-aSPCEs) is reported. The resulting electrochemical biosensor was validated towards glucose oxidation in real samples and further electrochemical measurement associated with the generated H2O2. The electrochemical biosensor showed an excellent sensitivity (42.7 μA mM−1 cm−2), limit of detection (7.6 μM), linear range (20 μM–2.3 mM), and good selectivity towards glucose determination. Furthermore, and most importantly, the detection of glucose was performed at a low potential (0.2 V vs. Ag). The high performance of the electrochemical biosensor was explained through surface exploration using field emission SEM, XPS, and impedance measurements. The electrochemical biosensor was successfully applied to glucose quantification in several real samples (commercial juices and a plant cell culture medium), exhibiting a high accuracy when compared with a classical spectrophotometric method. This electrochemical biosensor can be easily prepared and opens up a good alternative in the development of new sensitive glucose sensors.

Electrochemical Response of Flavonoids in Model and Real Samples at Screen-Printed Carbon Electrodes and Modified with Nanotubes

2019 ◽  
Vol 15 (1) ◽  
pp. 447-460 ◽  
Author(s):  
Martin M. Davila ◽  
María S. Flores ◽  
María De la Paz Elizalde
Keyword(s):  
Carbon Electrodes ◽  
Real Samples ◽  
Electrochemical Response ◽  
Screen Printed

scholarly journals Electrochemical sensing of total sulphites in beer using non-modified screen-printed carbon electrodes

2017 ◽  
Vol 123 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Rui M. Ramos ◽  
Pedro F. Brandão ◽  
Luís M. Gonçalves ◽  
Vlastimil Vyskočil ◽  
José A. Rodrigues
Keyword(s):  
Electrochemical Sensing ◽  
Carbon Electrodes ◽  
Screen Printed

Renewal Mechanism of UV-Ozone-Cleaning Process on Contaminated Screen-Printed Carbon Electrodes

2018 ◽  
Vol 165 (13) ◽  
pp. E674-E678 ◽  
Author(s):  
Jing Wang ◽  
Zheng Xu ◽  
Liding Wang ◽  
Junshan Liu ◽  
Mengqi Zhang
Keyword(s):  
Carbon Electrodes ◽  
Cleaning Process ◽  
Uv Ozone ◽  
Screen Printed
Sign in / Sign up

Export Citation Format

Share Document