| Texto completo | |
| Autor(es): |
Migliorini, Fernanda L.
;
Teodoro, Kelcilene B. R.
;
Scagion, Vanessa P.
;
dos Santos, Danilo M.
;
Fonseca, Fernando J.
;
Mattoso, Luiz H. C.
;
Correa, Daniel S.
Número total de Autores: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | SURFACES; v. 2, n. 2, p. 12-pg., 2019-06-01. |
| Resumo | |
The presence of contaminants in water is a subject of paramount importance nowadays, which can make water improper to human consumption even when these contaminants are present at very low concentrations, causing health issues and economic losses. In this work, we evaluated the performance of nanocomposites based on nylon 6,6/chitosan electrospun nanofibers modified by cellulose nanowhiskers combined with functional materials like silver nanoparticles, gold nanoparticles, and reduced graphene oxide to be used as sensing layers of an electronic tongue (e-tongue) to detect Isoborneol. This compound, found in some plants and essential oils, is used as a natural repellent and also to produce many other chemicals. Additionally, its chemical structure is related to that of 2-methylisoborneol, a critical pollutant in aqueous media. The synergism between the nanomaterials combined with electrospun nanofibers could be verified by the enhancement of the charge transference ability. Additionally, electrical capacitance data measured with the impedimetric e-tongue were treated by Principal Component Analysis (PCA), and revealed the sensing system was able to discriminate samples contaminated with Isoborneol at nanomolar concentrations. Moreover, the electronic tongue system could detect Isoborneol in real water samples under different concentrations. (AU) | |
| Processo FAPESP: | 17/12174-4 - Desenvolvimento de nanofibras poliméricas híbridas para aplicação na agricultura |
| Beneficiário: | Daniel Souza Corrêa |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 14/21184-5 - Nanocompósitos a partir de nanocristais de celulose e fibras eletrofiadas para o desenvolvimento de sensores poliméricos |
| Beneficiário: | Kelcilene Bruna Teodoro Costa |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 17/20973-4 - Nanofibras eletrofiadas coaxiais à base de quitosana para a liberação controlada de antibióticos e aplicações no tratamento de lesões periodontais |
| Beneficiário: | Danilo Martins dos Santos |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 18/09414-6 - Emprega do língua eletrônica utilizando sistema de análise em fluxo para análise de contaminantes em águas para consumo |
| Beneficiário: | Fernanda Lanzoni Migliorini |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |