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 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.

Prussian-blue-modified reduced-graphene-oxide as active support for Pt nanoparticles during oxygen electroreduction in acid medium

2020 ◽  
Vol 875 ◽  
pp. 114347
Author(s):  
Barbara Zakrzewska ◽  
Beata Dembinska ◽  
Sylwia Zoladek ◽  
Iwona A. Rutkowska ◽  
Jerzy Żak ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Prussian Blue ◽  
Reduced Graphene Oxide ◽  
Acid Medium ◽  
Pt Nanoparticles ◽  
Oxygen Electroreduction ◽  
Reduced Graphene
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