Amperometric Detection of H2O2 Using Gold Electrodes Modified with Starburst PAMAM Dendrimers and Prussian Blue

2006 ◽  
Vol 18 (21) ◽  
pp. 2092-2098 ◽  
Author(s):  
Erika Bustos Bustos ◽  
Thomas W. Chapman ◽  
F. Rodríguez-Valadez ◽  
Luis A. Godínez
Keyword(s):  
Prussian Blue ◽  
Amperometric Detection ◽  
Pamam Dendrimers ◽  
Gold Electrodes

scholarly journals A Label and Probe-Free Zika Virus Immunosensor Prussian Blue@carbon Nanotube-Based for Amperometric Detection of the NS2B Protein

Biosensors ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 157
Author(s):  
Bárbara V. M. Silva ◽  
Marli T. Cordeiro ◽  
Marco A. B. Rodrigues ◽  
Ernesto T. A. Marques ◽  
Rosa F. Dutra
Keyword(s):  
Carbon Nanotube ◽  
Prussian Blue ◽  
Zika Virus ◽  
Point Of Care ◽  
Amperometric Detection ◽  
Cross Reactivity ◽  
Structural Protein ◽  
Serum Samples ◽  
Polypyrrole Composite ◽  
Congenital Disabilities

Zika virus (ZIKV) is a mosquito-borne infection, predominant in tropical and subtropical regions causing international concern due to the ZIKV disease having been associated with congenital disabilities, especially microcephaly and other congenital abnormalities in the fetus and newborns. Development of strategies that minimize the devastating impact by monitoring and preventing ZIKV transmission through sexual intercourse, especially in pregnant women, since no vaccine is yet available for the prevention or treatment, is critically important. ZIKV infection is generally asymptomatic and cross-reactivity with dengue virus (DENV) is a global concern. An innovative screen-printed electrode (SPE) was developed for amperometric detection of the non-structural protein (NS2B) of ZIKV by exploring the intrinsic redox catalytic activity of Prussian blue (PB), incorporated into a carbon nanotube–polypyrrole composite. Thus, this immunosensor has the advantage of electrochemical detection without adding any redox-probe solution (probe-less detection), allowing a point-of-care diagnosis. It was responsive to serum samples of only ZIKV positive patients and non-responsive to negative ZIKV patients, even if the sample was DENV positive, indicating a possible differential diagnosis between them by NS2B. All samples used here were confirmed by CDC protocols, and immunosensor responses were also checked in the supernatant of C6/36 and in Vero cell cultures infected with ZIKV.

Disposable twin gold electrodes for amperometric detection in capillary electrophoresis

2004 ◽  
Vol 25 (17) ◽  
pp. 2965-2969 ◽  
Author(s):  
Eduardo M. Richter ◽  
José A. Fracassi da Silva ◽  
Ivano G. Rolf Gutz ◽  
Claudimir L. do Lago ◽  
Lúcio Angnes
Keyword(s):  
Capillary Electrophoresis ◽  
Amperometric Detection ◽  
Gold Electrodes

Prussian blue-functionalised graphene in the amperometric detection of peroxide and hydrazine

TECHNOLOGY ◽  
2013 ◽  
Vol 01 (01) ◽  
pp. 58-62 ◽  
Author(s):  
Gareth P. Keeley ◽  
Arlene O'Neill ◽  
Michael Holzinger ◽  
Serge Cosnier ◽  
Jonathan N. Coleman ◽  
...  
Keyword(s):  
Small Molecules ◽  
Prussian Blue ◽  
Pyrolytic Graphite ◽  
Amperometric Detection ◽  
Sensor Technology ◽  
Support Materials ◽  
Zeolite Structure ◽  
Ph Values ◽  
Liquid Phase Exfoliation ◽  
Higher Sensitivity

The electrochemical detection of hydrogen peroxide, H 2 O 2, and hydrazine, N 2 H 4, is of considerable interest because of the serious health risks associated with these compounds. The unique zeolite structure of Prussian blue, Fe 4[ Fe ( CN )6]3, endows it with excellent catalytic activity towards these small molecules, but its immobilisation on suitable support materials is limited by its solubility at neutral and basic pH values. Here we report an electroanalytical sensor for peroxide and hydrazine based on composites of Prussian blue and graphene nano-sheets (GNSs). The latter are fabricated using the liquid-phase exfoliation of graphite. When immobilised on graphene, Prussian blue is shown to exhibit higher sensitivity towards these analytes than a number of commercially available graphitic supports, including edge-plane pyrolytic graphite (EPPG) electrodes. The incorporation of graphene into electode systems could lead to great advances in sensor technology for these and many other species of interest.

Amperometric detection of glucose using Prussian blue-graphene oxide modified platinum electrode

2013 ◽  
Vol 5 (7) ◽  
pp. 1764 ◽  
Author(s):  
A. M. Vinu Mohan ◽  
K. K. Aswini ◽  
A. Maria Starvin ◽  
V. M. Biju
Keyword(s):  
Graphene Oxide ◽  
Prussian Blue ◽  
Platinum Electrode ◽  
Amperometric Detection

scholarly journals Tetralactam-modified gold electrodes for amperometric detection of acrylic acid

2009 ◽  
Vol 21 (6) ◽  
pp. 520-531 ◽  
Author(s):  
A. Krajewska ◽  
M. Smet ◽  
W. Dehaen ◽  
H. Radecka
Keyword(s):  
Acrylic Acid ◽  
Amperometric Detection ◽  
Gold Electrodes
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