| Texto completo | |
| Autor(es): |
Cantuaria, Jose B.
;
Mendes, Joao V.
;
Fugikawa-Santos, Lucas
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | RS ADVANCE; v. 9, n. 9, p. 6-pg., 2024-04-19. |
| Resumo | |
This study presents a novel approach combining diffusive gradient thin-film devices and a sensing matrix of functionalized electrodes for discrimination and quantification of heavy-metals in water environments. The experimental setup uses four sensing units with interdigitated gold-plated electrodes and an ionic conductive hydrogel. Impedance measurements were conducted using a gain/phase analyzer in the frequency range from 10 MHz to 0.1 Hz. Principal component analysis was applied to enhance data interpretation. The results showed distinct clusters for cobalt (Co2+) and manganese (Mn2+) ions at concentrations ranging from 10 to 100 ppm, indicating the potential for discrimination between water samples contaminated with these analytes. The integration of IoT and low-cost instruments enables real-time monitoring, wireless transmission of data, and cloud storage. This research contributes to the development of cost-effective methods for heavy metal detection and environmental monitoring, facilitating improved water quality assessment and prompt risk mitigation. (AU) | |
| Processo FAPESP: | 22/03661-7 - International Conference on the Science and Technology of Synthetic Metals 2022 |
| Beneficiário: | Lucas Fugikawa Santos |
| Modalidade de apoio: | Auxílio à Pesquisa - Reunião - Exterior |
| Processo FAPESP: | 19/08019-9 - Transistores transparentes/flexíveis: do estudo de propriedades de transporte ao desenvolvimento de circuitos |
| Beneficiário: | Lucas Fugikawa Santos |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |