Development and application of composite electrodes based on graphite-poliurethane and graphite-silicone rubber-III: modification with carbon nanotubes and molecularly imprinted polymers

• Grant number: 08/03537-7
• Support Opportunities: Regular Research Grants
• Start date: July 01, 2008
• End date: June 30, 2010
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Éder Tadeu Gomes Cavalheiro
• Grantee: Éder Tadeu Gomes Cavalheiro
• Host Institution: Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

In this work the development of the composite electrodes based on carbon nanotubes (CNT)commingled by polymers, such as poliurethane resin and silicone rubber is proposed. The CNT are nanostructures with interesting properties from the viewpoint of the electrochemical sensors. They combine high superficial area, high electrical conductivity, chemical stability and mechanical strength. In principle, the CNT must present better electrochemical reversibility, low capacitive current, easy surface renovation and finally, possibility of incorporation of modifiers. It is also proposed the synthesis of the molecularly imprinted polymers (MIP) to be used in the modification of composite electrodes graphite-poliurethane for determination and quantification of analytes in complex matrices such as biological or environmental samples. This project will contribute to the development of methods for determination of substances of biological or pharmacological interest, such as paracetamol, rutin, propranolol, among others, using the modified composite electrodes. The modification of composite should give better sensitivity and selectivity to the electrodes. (AU)

Scientific publications

(13)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SOUSA, ROGERIO A.; DOS-SANTOS, SIDNEY X.; CAVALHEIRO, EDER T. G.; BRETT, CHRISTOPHER M. A.. Graphite-Polyurethane and Graphite-Silicone Rubber Composite Electrodes for Electrochemical Characterization and Determination of Minoxidil. Electroanalysis, v. 25, n. 3, SI, p. 706-715, MAR 2013. (08/03537-7)

CESARINO, IVANA; MARINO, GLIMALDO; GOMES CAVALHEIRO, EDER TADEU. A novel graphite-polyurethane composite electrode modified with thiol-organofunctionalized silica for the determination of copper ions in ethanol fuel. FUEL, v. 89, n. 8, p. 1883-1888, AUG 2010. (08/03537-7)

CALIXTO, CAROLINA M. F.; CERVINI, PRISCILA; CAVALHEIRO, EDER T. G.. Determination of atenolol in environmental water samples and pharmaceutical formulations at a graphite-epoxy composite electrode. INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, v. 92, n. 5, p. 561-570, 2012. (08/03537-7)

DOS SANTOS, SIDNEY XAVIER; CAVALHEIRO, EDER T. G.; BRETT, CHRISTOPHER M. A.. Analytical Potentialities of Carbon Nanotube/Silicone Rubber Composite Electrodes: Determination of Propranolol. Electroanalysis, v. 22, n. 23, p. 2776-2783, DEC 2010. (08/03537-7)

SOUSA, ROGERIO A.; DOS-SANTOS, SIDNEY X.; CAVALHEIRO, EDER T. G.; BRETT, CHRISTOPHER M. A.. Graphite-Polyurethane and Graphite-Silicone Rubber Composite Electrodes for Electrochemical Characterization and Determination of Minoxidil. Electroanalysis, v. 25, n. 3, p. 10-pg., 2013-03-01. (08/03537-7)

IVANA CESARINO; ÉDER TADEU GOMES CAVALHEIRO. Characterization of thiol-functionalised silica films deposited on electrode surfaces. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 11, n. 4, p. 465-469, 2008-12-00. (08/03537-7)

CESARINO, IVANA; GOMES CAVALHEIRO, EDER TADEU. Characterization of Thiol-Functionalised Silica Films Deposited on Electrode Surfaces. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 11, n. 4, p. 465-469, OCT-DEC 2008. (08/03537-7)

CESARINO, IVANA; GOUVEIA-CARIDADE, CARLA; PAULIUKAITE, RASA; CAVALHEIRO, EDER T. G.; BRETT, CHRISTOPHER M. A.. Characterization and Application of Bismuth-Film Modified Graphite-Polyurethane Composite Electrodes. Electroanalysis, v. 22, n. 13, p. 1437-1445, JUL 2010. (08/03537-7)

CESARINO, IVANA; CAVALHEIRO, EDER T. G.; BRETT, CHRISTOPHER M. A.. Characterization of graphite-polyurethane composite electrodes modified with organofunctionalized SBA-15 nanostructured silica in the presence of heavy metal ions. Application to anodic stripping voltammetry. Microchimica Acta, v. 171, n. 1-2, p. 1-9, OCT 2010. (08/03537-7)

CESARINO, IVANA; CAVALHEIRO, EDER T. G.; BRETT, CHRISTOPHER M. A.. Simultaneous Determination of Cadmium, Lead, Copper and Mercury Ions Using Organofunctionalized SBA-15 Nanostructured Silica Modified Graphite - Polyurethane Composite Electrode. Electroanalysis, v. 22, n. 1, p. 61-68, JAN 2010. (08/03537-7)

CERVINI, PRISCILA; GOMES CAVALHEIRO, EDER TADEU. Evaluation of the Analytical Potentialities of a Composite Electrode Modified with Molecularly Imprinted Polymers. Analytical Letters, v. 42, n. 13, p. 1940-1957, 2009. (08/03537-7, 06/06133-9)

DE SOUSA, ROGERIO ADELINO; SEMAAN, FELIPE SILVA; CERVINI, PRISCILA; GOMES CAVALHEIRO, EDER TADEU. Determination of Minoxidil by Bleaching the Permanganate Carrier Solution in a Flow-Based Spectrophotometric System. Analytical Letters, v. 44, n. 1-3, p. 349-359, 2011. (08/03537-7)

CESARINO, IVANA; GOMES CAVALHEIRO, EDER TADEU. Characterization of Thiol-Functionalised Silica Films Deposited on Electrode Surfaces. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 11, n. 4, p. 5-pg., 2008-10-01. (08/03537-7)