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Electrochemical quantification of analytes of environmental and biological interest, using new materials prepared from functionalized silsesquioxanes.

Grant number: 12/11306-0
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): November 01, 2012
Effective date (End): July 31, 2015
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
Principal Investigator:Devaney Ribeiro Do Carmo
Grantee:Daniela Silvestrini Fernandes
Host Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil

Abstract

In this project we describe the spectroscopic and electroanalytical properties of different hybrids materials based on silsesquioxanes organically modified. The specific objectives of this project can be summarized in three steps. In a first part, the nanocomposite octa-(3-chloropropyl)octa silsesquioxane organofunctionalized with tryazole, imidazole and a PAMAM dendrimer (G.0) groups should be prepared and characterized by different techniques such as: Infrared (FTIR), UV-Visible, X-Ray Diffraction (XRD), Nuclear Magnetic Resonance, (NMR solid state), Scanning and Transmission Electron Microscopy (SEM, TEM), and Thermoanalysis (TGA-DTA ). In a second step we intend to conduct a systematic study about the electrochemical properties of these materials after the formation of hybrid and metal hexacyanoferrates complexes, using mainly the cyclic voltammetry as technique and solid and graphite paste electrode as work electrode. In a third step, after optimization of the electrochemical system, we intend to test these materials as sensors for the determination of species of environmental and biological interest, employing especially square wave, differential pulse voltammetry or chronoamperometry techniques.

News published in Agência FAPESP Newsletter about the scholarship:
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VEICULO: TITULO (DATA)
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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)
DO CARMO, D. R.; SOUZA, M. M.; BICALHO, U. O.; DOS SANTOS, V. S.; SOUZA, J. P.; SILVESTRINI, D. R.. Direct Preparation and Characterization of Copper Pentacyanonitrosylferrate Nanoparticles. Journal of Nanomaterials, . (12/05438-1, 12/11306-0)
DO CARMO, D. R.; SILVESTRINI, D. R.; BARUD, H. S.; FILHO, N. L. DIAS; BICALHO, U. O.; SOARES, L. A.. A Silsesquioxane Organically Modified with 4-Amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol: Thermal Behavior and Its Electrochemical Detection of Sulfhydryl Compounds. Journal of Nanomaterials, . (12/05438-1, 12/11306-0)
SILVESTRINI, DANIELA RODRIGUES; BICALHO, URQUISA DE OLIVEIRA; DO CARMO, DEVANEY RIBEIRO. A Novel Hybrid Composite Formed by Reaction of 4,5-Diphenyl-2-Imidazolethiol with Hexacyanoferrate (III) and Subsequent Reaction with Copper (II): Preparation, Characterization and a Voltammetric Application for Determination of L-Glutatione. International Journal of Electrochemical Science, v. 9, n. 8, p. 4114-4128, . (12/05438-1, 12/11306-0)
SOARES, LAYCIANE APARECIDA; SERANTONI DA SILVEIRA, TAYLA FERNANDA; SILVESTRINI, DANIELA RODRIGUES; BICALHO, URQUISA DE OLIVEIRA; DIAS FILHO, NEWTON LUIZ; DO CARMO, DEVANEY RIBEIRO. A New Hybrid Polyhedral Cubic Silsesquioxane Chemically Modified with 4-amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol (APTT) and Copper Hexacyanoferrate(III) for Voltammetric Determination of Nitrite. International Journal of Electrochemical Science, v. 8, n. 4, p. 4654-4669, . (12/05438-1, 12/11306-0)
DO CARMO, DEVANEY RIBEIRO; FERNANDES, DANIELA SILVESTRINI; CUMBA, LOANDA RAQUEL; MAGOSSI, MARIANA DE SOUZA; DOS SANTOS, VANESSA SOLFA. Solvent mixture effect in the zinc hexacyanoferrate (III) nanoparticles: Synthesis, characterization and voltammetric application. Materials Research Bulletin, v. 84, p. 370-377, . (12/05438-1, 12/11306-0)
SILVESTRINI, DANIELA RODRIGUES; SERANTONI DA SILVEIRA, TAYLA FERNANDA; BICALHO, URQUISA DE OLIVEIRA; DO CARMO, DEVANEY RIBEIRO. Voltammetric Behavior of a Chemically Modified Silsesquioxane with 4-Amino-5-Phenyl-4h-[1,2,4]-Triazole-3-Thiol and its Application for Detection of L-Dopamine. International Journal of Electrochemical Science, v. 10, n. 4, p. 2839-2858, . (13/08495-9, 12/05438-1, 12/11306-0)
SILVESTRINI FERNANDES, DANIELA; DO CARMO, DEVANEY RIBEIRO. Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid. Electroanalysis, v. 33, n. 2, p. 365-374, . (12/05438-1, 12/11306-0)
FERNANDES, DANIELA SILVESTRINI; MARALDI, VITOR ALEXANDRE; DIAS FILHO, NEWTON LUIZ; DO CARMO, DEVANEY R.. Reactivity of a Silsesquioxane Organofunctionalized with 4-Amino-5-Phenyl-4H-[1,2,4]-Triazole-3-thiol: Complementary Characterization and an Application to Chronoamperometric Detection of L-Dopamine. SILICON, v. 11, n. 2, p. 1131-1142, . (12/05438-1, 12/11306-0)
DO CARMO, D. R.; SOUZA, M. M.; BICALHO, U. O.; DOS SANTOS, V. S.; SOUZA, J. P.; SILVESTRINI, D. R.. Direct Preparation and Characterization of Copper Pentacyanonitrosylferrate Nanoparticles. Journal of Nanomaterials, v. 2015, p. 6-pg., . (12/05438-1, 12/11306-0)
DO CARMO, D. R.; SILVESTRINI, D. R.; BARUD, H. S.; FILHO, N. L. DIAS; BICALHO, U. O.; SOARES, L. A.. A Silsesquioxane Organically Modified with 4-Amino-5-(4-pyridyl)-4H-1,2,4-triazole-3-thiol: Thermal Behavior and Its Electrochemical Detection of Sulfhydryl Compounds. Journal of Nanomaterials, v. 2014, p. 11-pg., . (12/05438-1, 12/11306-0)
SERANTONI DA SILVEIRA, TAYLA FERNANDA; FERNANDES, DANIELA SILVESTRINI; BARBOSA, PRISCILA FERNANDA P.; DO CARMO, DEVANEY RIBEIRO. Preparation and use of a Grafted Silica with Imidazole Groups for Cadmium Sorption and Subsequent Voltammetric Detection of Ascorbic Acid. SILICON, v. 10, n. 2, p. 635-643, . (12/05438-1, 12/11306-0, 13/08495-9)
DO CARMO, DEVANEY R.; SILVESTRINI, DANIELA R.; DA SILVEIRA, TAYLA F. S.; CUMBA, LOANDA R.; DIAS FILHO, NEWTON L.; SOARES, LAYCIANE A.. Silsesquioxane organofunctionalized with 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole: Preparation and subsequent reaction with silver and potassium hexacyanoferrate(III) for detection of L-cysteine. Materials Science & Engineering C-Materials for Biological Applications, v. 57, p. 24-30, . (13/08495-9, 12/05438-1, 12/11306-0)
SOARES, LAYCIANE APARECIDA; YINGZI, WANG; SERANTONI DA SILVEIRA, TAYLA FERNANDA; SILVESTRINI, DANIELA RODRIGUES; BICALHO, URQUISA DE OLIVEIRA; DIAS FILHO, NEWTON LUIZ; DO CARMO, DEVANEY RIBEIRO. A Cubic Silsesquioxane Modified With Purpald (R) : Preparation, Characterization and a Voltammetric Application for Determination of Sulfite. International Journal of Electrochemical Science, v. 8, n. 6, p. 7565-7580, . (12/05438-1, 12/11306-0)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
FERNANDES, Daniela Silvestrini. Quantificação eletroquímica de analitos de interesse ambiental e biológico, empregando novos materiais preparados a partir de silsesquioxanos funcionalizados. 2015. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Engenharia. Ilha Solteira Ilha Solteira.

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