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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Active-electrode biosensor of SnO2 nanowire for cyclodextrin detection from microbial enzyme

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Author(s):
Amorim, Cleber A. [1] ; Blanco, Kate C. [2] ; Costa, Ivani M. [3] ; Vicente, Eduardo F. [1] ; Petruci, Joao Flavio da S. [4] ; Contiero, Jonas [5] ; Leite, Edson R. [6] ; Chiquito, Adenilson J. [3]
Total Authors: 8
Affiliation:
[1] Univ Estadual Paulista, Fac Ciencias & Engn Tupa, Ave Domingos Costa Lopes, 780 Jardim Itaipu, Tupa, SP - Brazil
[2] Univ Sao Paulo, Inst Fis Sao Carlos, Box 369, BR-13566970 Sao Carlos, SP - Brazil
[3] Univ Fed Sao Carlos UFSCar, Dept Fis, NanoLab, Rodovia Washington Luiz, Km 235 Monjolinho, CP 676, BR-13565905 Sao Carlos, SP - Brazil
[4] Univ Fed Uberlandia, Inst Quim, Ave Joao Naves de Avila 2121, Uberlandia, MG - Brazil
[5] Univ Estadual Paulista, Inst Biociencias Rio Claro, Dept Bioquim & Microbiol, Ave 24-A, 1515 Bela Vista, Rio Claro, SP - Brazil
[6] Univ Fed Sao Carlos UFSCar, Dept Quim, LIEC, Rodovia Washington Luiz, Km 235 Monjolinho, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 6
Document type: Journal article
Source: Nanotechnology; v. 31, n. 16 APR 17 2020.
Web of Science Citations: 0
Abstract

Cyclodextrin (CD) is a conical compound used in food and pharmaceutical industry to complexation of hydrophobic substances. It is a product of microbial enzymes which converts starch into CD during their activity. We aim to detect CD using active-electrode biosensor of SnO2. They were grown on active electrode by the VLS method. The CD consists of several glucose units which have hydroxyl groups which tend to bind to interface states present in nanowires changing their conductivity. Experimental results of electrical conductivity at different CD concentrations are presented. A model that describes the influence of adsorbed glucose on nanowires and its electrical properties is also presented. Some general observations are performed on the applicability of the CD adsorption method by the nanowire-based biosensor. (AU)

FAPESP's process: 16/00446-7 - Application of antimicrobial peptides as new additives in animal nutrition
Grantee:Eduardo Festozo Vicente
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 19/12694-3 - Treatment of pharyngotonsillitis with photodynamic action
Grantee:Kate Cristina Blanco
Support Opportunities: Scholarships in Brazil - Post-Doctoral