Graphite-Polyurethane and Graphite-Silicone Rubber Composite Electrodes for Electrochemical Characterization and Determination of Minoxidil

2013 ◽  
Vol 25 (3) ◽  
pp. 706-715 ◽  
Author(s):  
Rogerio A. Sousa ◽  
Sidney X. Dos-Santos ◽  
Eder T. G. Cavalheiro ◽  
Christopher M. A. Brett
Keyword(s):  
Silicone Rubber ◽  
Electrochemical Characterization ◽  
Composite Electrodes ◽  
Rubber Composite

Analytical Potentialities of Carbon Nanotube/Silicone Rubber Composite Electrodes: Determination of Propranolol

2010 ◽  
Vol 22 (23) ◽  
pp. 2776-2783 ◽  
Author(s):  
Sidney Xavier dos Santos ◽  
Éder T. G. Cavalheiro ◽  
Christopher M. A. Brett
Keyword(s):  
Carbon Nanotube ◽  
Silicone Rubber ◽  
Composite Electrodes ◽  
Rubber Composite

The Potentialities of Using a Graphite-Silicone Rubber Composite Electrode in the Determination of Propranolol

2011 ◽  
Vol 44 (5) ◽  
pp. 850-862 ◽  
Author(s):  
Sidney Xavier dos Santos ◽  
Éder Tadeu Gomes Cavalheiro
Keyword(s):  
Silicone Rubber ◽  
Composite Electrode ◽  
Rubber Composite

scholarly journals Preparation of Bamboo-Like Carbon Nanotube Loaded Piezoresistive Polyurethane-Silicone Rubber Composite

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2144
Author(s):  
Mohammed Nabeel ◽  
Miklós Varga ◽  
László Kuzsela ◽  
Ádám Filep ◽  
Béla Fiser ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Silicone Rubber ◽  
Dip Coating ◽  
Nitrogen Doped ◽  
Novel Technology ◽  
Pu Foam ◽  
Rubber Composite ◽  
Finger Touch ◽  
Human Monitoring ◽  
Strength And Durability

In this study, a novel technology is reported to prepare a piezoresistive polyurethane-silicone rubber nanocomposite. Polyurethane (PU) foam was loaded with a nitrogen-doped bamboo-shaped carbon nanotube (N-BCNT) by using dip-coating, and then, impregnated with silicone rubber. PU was used as a supporting substrate for N-BCNT, while silicone rubber was applied to fill the pores of the foam to improve recoverability, compressive strength, and durability. The composite displays good electrical conductivity, short response time, and excellent repeatability. The resistance was reduced when the amount of N-BCNT (0.43 wt %) was increased due to the expanded conductive path for electron transport. The piezoresistive composite has been successfully tested in many applications, such as human monitoring and finger touch detection.

Use of beeswax as an alternative binder in the development of composite electrodes: an approach for determination of hydrogen peroxide in honey samples

2021 ◽  
pp. 138876
Author(s):  
Paulo Roberto de Oliveira ◽  
Cristiane Kalinke ◽  
Juliano Alves Bonacin ◽  
Luiz Humberto Marcolino-Junior ◽  
Marcio Fernando Bergamini ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Composite Electrodes

Electrochemical characterization and determination of N-acetylpenicillamine thionitrite

1985 ◽  
Vol 175 ◽  
pp. 69-77 ◽  
Author(s):  
Esther Sans Takeuchi ◽  
Janet Osteryoung ◽  
Ho-Leung Fung
Keyword(s):  
Electrochemical Characterization

Determination of Ionic and Electronic Resistivities in Carbon/Polyelectrolyte Fuel-Cell Composite Electrodes

2002 ◽  
Vol 149 (12) ◽  
pp. A1541 ◽  
Author(s):  
Andrew P. Saab ◽  
Fernando H. Garzon ◽  
Thomas A. Zawodzinski
Keyword(s):  
Fuel Cell ◽  
Composite Electrodes

scholarly journals Characterization of graphite-epoxy composite electrodes for free electrochemical detection of adenine and guanine in DNA

2021 ◽  
Author(s):  
Abel Ibrahim Balbin Tamayo ◽  
Leodanis Correa Fajardo ◽  
Ana Margarita Esteva Guas
Keyword(s):  
Square Wave Voltammetry ◽  
Construction Materials ◽  
Composite Electrodes ◽  
Single Chain ◽  
Electron Transfer Rate ◽  
Redox Probe ◽  
Wave Voltammetry ◽  
Electron Transfer Rate Constant

Graphite-epoxy composites (GECs) are alternative construction materials for electro­chemical sensors. For these materials, the electron transfer rate constant of some redox reaction depends additionally on the stoichiometric relationship between the insulating and conducting phases of the composite. In this work, the influence of dif­fe­rent ratios of araldite/hardener/graphite on the electrochemical properties of GEC electrodes is evaluated for the simultaneous determination of adenine and guanine in the single chain DNA, using the square wave voltammetry technique. Six GEC electro­des were prepared with different ratios of components, and electrochemically charac­terized by cyclic voltammetry in the presence of ferri/ferrocyanide redox couple as a redox probe. GEC electrodes that showed the best electrochemical responses of redox probe were characterized by thermogravimetric analysis (TGA) and used for the simul­taneous determination of free adenine and guanine in a solution, and DNA oligonu­cle­otides. The best results were obtained for GEC electrodes containing twice higher volu­me of araldite resin with respect to the hardener. TGA analysis revealed presence of 15-26 % of resin for these GEC electrodes. The obtained results revealed potential appl­ication of these GEC electrodes as DNA sensors based on the oxidation signal of guanine.

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