| Texto completo | |
| Autor(es): |
de Campos, Anderson M.
;
Silva, Robson R.
;
Calegaro, Marcelo L.
;
Raymundo-Pereira, Paulo A.
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | CHEMOSENSORS; v. 10, n. 11, p. 12-pg., 2022-11-01. |
| Resumo | |
The use of economic methods to design and fabricate flexible copper sensors decorated with bismuth micro/nanodentrites for the detection of lead and cadmium in sweat is demonstrated. The flexible copper sensors were constructed with simple and cost-effective materials; namely, flexible and adhesive conductive copper tape, adhesive label containing the design of a three-electrode electrochemical system, and nail polish or spray as a protective layer. The flexible copper device consisted of a working electrode decorated with bismuth micro/nanodentrites using an electrodeposition technique, a copper pseudo-reference and copper counter electrodes. Under optimal experimental conditions, the flexible sensing platform showed excellent performance toward the detection of lead and cadmium using differential pulse anodic stripping voltammetry (DPAdSV) in a wide linear range from 2.0 mu M to 50 mu M with acceptable reproducibility and repeatability, and limits of detection and quantification of 5.36 and 17.9 mu M for Cd2+ ions and 0.76 mu M and 2.5 for Pb2+ ions. Studies of addition and recovery in spiked artificial sweat sample were performed, with a recovery of 104.6%. The flexible copper device provides a great opportunity for application in wearable perspiration-based healthcare systems or portable sensors to detect toxic metals in biological samples. (AU) | |
| Processo FAPESP: | 22/02164-0 - Desenvolvimento de sensores eletroquímicos modificados com nano esferas ocas de carbono dopadas com enxofre e nitrogênio para a quantificação de fármacos em amostras de água de abastecimento |
| Beneficiário: | Sergio Antonio Spinola Machado |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 16/06612-6 - Biossensor impresso e implantável fabricado com biopolímeros para monitoramento de longa duração |
| Beneficiário: | Robson Rosa da Silva |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 16/01919-6 - Design e fabricação de dispositivos flexíveis nanoestruturados para detecção de biomarcadores |
| Beneficiário: | Paulo Augusto Raymundo Pereira |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |