Isoniazid-sensing Behavior of a Hybrid Silsesquioxane and Cobalt Pentacyanonitrosylferrate-based Nanocomposite

Autor(es)

de Souza Magossi, Mariana ^[1] ; de Souza Magossi, Maiara ^[1] ; Dias Filho, Newton Luiz ^[1] ; Ribeiro do Carmo, Devaney ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, Fac Engn Ilha Solteira, Ave Brasil, 56, BR-15385000 Ilha Solteira, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Electroanalysis; v. 33, n. 8, p. 1886-1894, AUG 2021.
• Citações Web of Science: 0

Resumo

A novel silsesquioxane and cobalt nitroprusside compound was prepared from octa(aminopropyl)silsesquioxane, resulting in a nanocomposite (ACCoN), which was then characterized by different spectroscopic techniques. The cyclic voltammograms of the ACCoN-modified graphite paste electrode indicated a redox pair with a formal potential (E-theta `)=0.38 V, assigned to the (CoFe(II))-Fe-(II)(CN)(5)NO/(CoFe(III))-Fe-(II)(CN)(5)NO redox couple. The ACCoN-modified graphite paste electrode was sensitive to isoniazid concentrations, presenting a linear response at a concentration range from 6.0x10(-7) to 1.0x10(-5) mol L-1, with limit of detection and amperometric sensitivity of 5.53x10(-7) mol L-1 and 0.17 A/mol L-1, respectively. (AU)

• Processo FAPESP: 18/24576-2 - Oligômeros poliédricos de silsesquioxanos (POSS) híbridos e sua potencialidade analítica como sensor para compostos orgânicos e inorgânicos.
• Beneficiário: Devaney Ribeiro Do Carmo
• Modalidade de apoio: Auxílio à Pesquisa - Regular