Application of biohybrid silsesquioxane based material modified with methylene blue for determination of sulphite
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Data
2023-01-01
Autores
Freitas, Bianca Trama [UNESP]
Freitas, Rebeca Moreira Lima
Rodrigues, Aline Bento [UNESP]
Baroni, Abner Santos [UNESP]
dos Reis, Idalci Cruvinel
dos Santos Felipe, Alexsandro [UNESP]
Rodrigues, Beatriz Bento [UNESP]
Barbosa, Priscila Fernanda Pereira [UNESP]
Maraldi, Vitor Alexandre [UNESP]
dos Santos Franco, Fernanda [UNESP]
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Resumo
Detecting organic and inorganic contaminants is one of the most important environmental concerns today. Consequently, the search for low-cost materials and efficient technologies for solving such a problem has increased, becoming of the utmost importance.Within this context, the present study applied a new nanostructured bioinorganic hybrid material with great potential in the field of nanotechnology: yeast Saccharomyces cerevisiae chemically modified with cubic silsesquioxane. Based on voltammetric measurements with modified graphite paste electrodes with yeast/silsesquioxane and methylene blue (YSB), the value of anodic peak current decreased linearly as the concentration of sulphite increased. The limit of detection obtained was of 0.60 μmol L−1 and sensitivity amperometric (Sa) of 5.8 × 10−4 μA/mol L−1
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Biosensor, Cyclic voltammetry, Silsesquioxane, Sulphite, Yeast
Como citar
International Journal of Electrochemical Science, v. 18, n. 5, 2023.