| Texto completo | |
| Autor(es): |
Bar, Jaciara
;
de Barros, Anerise
;
Shimizu, Flavio Makoto
;
Sigoli, Fernando A.
;
Bufon, Carlos Cesar Bof
;
Mazali, Italo Odone
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY; v. 310, p. 8-pg., 2024-01-30. |
| Resumo | |
Herein, we explore the combined effect of Shaped-Induced Enhanced Raman Scattering (SIERS) and SurfaceEnhanced Raman Scattering (SERS) for detecting thiram molecules. We fabricated V-shaped microchannels on a silicon (100) substrate through a standard lithography and etching process. The analysis of SIERS@SERS was performed for Si -V substrates modified with AuNRs with different thiram concentrations, 10-7 to 10-10 mol/L. The spectra were collected for different regions of the Si -V substrates, i.e., in the inside, edge, between (flat top), and far from Si -V (coffee-ring AuNRs aggregation) to assess the performance of Si -V microchannels obtained. The IDMAP statistical projection reveals a higher silhouette coefficient of 0.91 for the inside of Si -V, indicating a more excellent spectral reproducibility with closer relative intensities. The device platform used in this study stands out as a robust option for commercial sensors, demonstrating exceptional sensitivity in detecting a diverse range of molecules, even at low concentrations. (AU) | |
| Processo FAPESP: | 22/02893-1 - Métodos ecológicos de síntese de nanopartículas metálicas para aplicação na avaliação do crescimento de plantas de soja na presença das nanopartículas |
| Beneficiário: | Anerise de Barros |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 14/50906-9 - INCT 2014: em Materiais Complexos Funcionais (INOMAT) |
| Beneficiário: | Fernando Galembeck |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 17/02317-2 - Interfaces em materiais: propriedades eletrônicas, magnéticas, estruturais e de transporte |
| Beneficiário: | Adalberto Fazzio |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |