scholarly journals Layered Xerogel Films Incorporating Monolayer-Protected Cluster Networks on Platinum-Black-Modified Electrodes for Enhanced Sensitivity in First-Generation Uric Acid Biosensing

2016 ◽  
Vol 3 (8) ◽  
pp. 1245-1252 ◽  
Author(s):  
Mulugeta B. Wayu ◽  
Michael J. Pannell ◽  
Michael C. Leopold
Keyword(s):  
Uric Acid ◽  
First Generation ◽  
Modified Electrodes ◽  
Platinum Black ◽  
Enhanced Sensitivity ◽  
Cluster Networks ◽  
Xerogel Films

Low-Potential Detection of Endogenous and Physiological Uric Acid at Uricase−Thionine−Single-Walled Carbon Nanotube Modified Electrodes

2010 ◽  
Vol 82 (6) ◽  
pp. 2448-2455 ◽  
Author(s):  
Dongxiao Chen ◽  
Qian Wang ◽  
Juan Jin ◽  
Ping Wu ◽  
Hui Wang ◽  
...  
Keyword(s):  
Uric Acid ◽  
Carbon Nanotube ◽  
Modified Electrodes ◽  
Single Walled Carbon Nanotube ◽  
Single Walled Carbon

Oxidase/peroxidase bilayer-modified electrodes as sensors for lactate, pyruvate, cholesterol and uric acid

1991 ◽  
Vol 242 ◽  
pp. 85-89 ◽  
Author(s):  
Tetsu Tatsuma ◽  
Tadashi Watanabe
Keyword(s):  
Uric Acid ◽  
Modified Electrodes

Graphene Oxide Functionalized with Silver Nanoparticles and ZnO Synergic Nanocomposite as an Efficient Electrochemical Sensor for Diclofenac Sodium

NANO ◽  
2021 ◽  
Author(s):  
Saira Naz ◽  
Amjad Nisar ◽  
Lizhi Qian ◽  
Shafqat Hussain ◽  
Shafqat Karim ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Diclofenac Sodium ◽  
Modified Electrodes ◽  
High Sensitivity ◽  
Cost Effective ◽  
Fast Response ◽  
Industrial Applications ◽  
Ag Nps ◽  
Enhanced Sensitivity

The development of a highly sensitive and selective electrocatalyst for the detection of diclofenac sodium (D.S.) has remained a great challenge. In this work, graphene oxide functionalized with silver nanoparticles and zinc oxide (Ag–ZnO–GO) electrocatalyst was developed and investigated for the detection of D.S. The Ag–ZnO–GO/glassy carbon electrode exhibits high sensitivity and fast response within 3[Formula: see text]s owing to the efficient oxidation of D.S. at a very low potential at 0.25[Formula: see text]V. Moreover, the electrode shows a low detection limit of 0.02[Formula: see text][Formula: see text]M ([Formula: see text]) and long-term stability. To explore the synergic effects, the measurements of D.S. using GO, ZnO and ZnO–GO modified electrodes were also performed. The results demonstrate that the Ag–ZnO–GO nanocomposite electrode exhibits enhanced sensitivity and selectivity compared to the other electrodes. In addition, the electrode reveals excellent results for D.S. detection in the real samples as well. The enhanced performance of the proposed electrode is attributed to the improved electron transfer ability and synergic effects of the plasmonic Ag NPs and ZnO–GO structure. It is expected that Ag–ZnO–GO composite is a promising candidate for the construction of cost-effective electrochemical biosensors for medical and industrial applications.

Simultaneous Determination of Ascorbic Acid, Dopamine and Uric Acid Based on Gold Nanoparticles-PTCA-Cys Composites Modified Electrodes

2015 ◽  
Vol 62 (8) ◽  
pp. 739-746 ◽  
Author(s):  
Feng Li ◽  
Yaqin Chai ◽  
Ruo Yuan ◽  
Xin Li ◽  
Yuqiao Yang
Keyword(s):  
Gold Nanoparticles ◽  
Ascorbic Acid ◽  
Uric Acid ◽  
Simultaneous Determination ◽  
Modified Electrodes

scholarly journals Fabrication of Ag@Co-Al Layered Double Hydroxides Reinforced poly(o-phenylenediamine) Nanohybrid for Efficient Electrochemical Detection of 4-Nitrophenol, 2,4-Dinitrophenol and Uric acid at Nano Molar Level

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
T. Dhanasekaran ◽  
R. Manigandan ◽  
A. Padmanaban ◽  
R. Suresh ◽  
K. Giribabu ◽  
...  
Keyword(s):  
Uric Acid ◽  
Detection Limit ◽  
Electrochemical Detection ◽  
Glassy Carbon ◽  
Layered Double Hydroxides ◽  
Modified Electrodes ◽  
Electrochemical Sensing ◽  
Carbon Electrode ◽  
Ft Ir ◽  
Double Hydroxides

Abstract In this paper, Co-Al layered double hydroxides (LDHs), Co-Al LDHs/poly(o-phenylenediamine) (PoPD) and Ag nanoparticles decorated Co-Al LDHs/PoPD (Ag@Co-Al LDH/PoPD) samples were prepared. The as-prepared samples were characterized by XRD, Raman, XPS, FT-IR, DRS-UV-Vis, PL and TGA techniques. The salient features of morphology and size of the samples were determined using FESEM, and HR-TEM. Then, the samples were coated on glassy carbon electrode (GCE) and employed for sensing of 4-nitrophenol (4-NP), 2,4-dinitrophenol (2,4-DNP)) and uric acid (UA). It was found that Ag@Co-Al LDH/PoPD/GCE showed superior electrochemical sensing behaviour than other modified electrodes. It exhibits the detection limit (DL) of 63 nM, 50 nM and 0.28 µM for 4-NP, 2,4-DNP and UA respectively.

scholarly journals Functionals Aspects and Simultaneous Detection of Dopamine, Ascorbic Acid and Uric Acid Using Chitosan-Catechol Graphene and Carbon Nanotube Modified Electrodes

2019 ◽  
Vol 7 (1) ◽  
pp. 5-13
Author(s):  
Tjerignimin Adissa Silue ◽  
Valerie Lewitus ◽  
Abul Hussam ◽  
Hadar Ben-Yoav ◽  
Nathalia Peixoto
Keyword(s):  
Ascorbic Acid ◽  
Uric Acid ◽  
Carbon Nanotube ◽  
Simultaneous Detection ◽  
Modified Electrodes
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