Por favor, use este identificador para citar o enlazar este ítem:
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1165368Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.contributor.author | VIEIRA, M. F. | |
| dc.contributor.author | ALMEIDA, C. G. de | |
| dc.contributor.author | BRANDAO, H. de M. | |
| dc.contributor.author | IZUMI, C. M. S. | |
| dc.date.accessioned | 2024-07-03T15:55:18Z | - |
| dc.date.available | 2024-07-03T15:55:18Z | - |
| dc.date.created | 2024-07-03 | |
| dc.date.issued | 2025 | |
| dc.identifier.citation | Journal of the Brazilian Chemical Society, v. 36, n. 1, e-20240096, 2025. | |
| dc.identifier.uri | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1165368 | - |
| dc.description | The present work reports the in situ fabrication of Ag nanoparticles (AgNPs) in polystyreneb-poly(2-vinylpyridine) (PS-b-P2VP) over pre-patterned hydrophobic stripes on a hydrophilic glass surface. Microcontact printing (μCP) using octadecyltrichlorosilane (OTS) as “ink” was used to obtain these chemically modified substrates. A comparison of the results of the PS-b-P2VP self-assembly over a bare glass substrate and a pre-patterned glass substrate demonstrated the influence of the pattern on the film morphology. Polymeric films of Ag+ and PS-b-P2VP were prepared on a pre-patterned substrate and heated at 150 °C to enable the self-reconstruction of the polymeric matrix and the in situ formation of AgNPs (average particle size of approximately 100 nm). The AgNP/PS-b-P2VP thin films were characterized using UV-Vis spectroscopy and atomic force microscopy. The results demonstrate that the concentration of the solutions of Ag+ /PS-b-P2VP used to prepare the films strongly influences the morphologies and dispersion of AgNPs. Moreover, the surface-enhanced Raman spectroscopy (SERS) activity of the fabricated polymer nanocomposites using Nile Blue as a molecular probe shows the importance of the chemical modification of the substrate in the enhancement of the SERS signal. | |
| dc.language.iso | eng | |
| dc.rights | openAccess | |
| dc.subject | Nanopartícula | |
| dc.subject | Poliestireno | |
| dc.subject | Vidro hidrofílico | |
| dc.title | In situ preparation of silver nanoparticles in polystyrene-b-poly (2-vinylpyridine) films over chemically patterned substrates. | |
| dc.type | Artigo de periódico | |
| dc.subject.nalthesaurus | Nanoparticles | |
| riaa.ainfo.id | 1165368 | |
| riaa.ainfo.lastupdate | 2024-07-03 | |
| dc.identifier.doi | https://dx.doi.org/10.21577/0103-5053.20240096 | |
| dc.contributor.institution | MOYRA F. VIEIRA, UNIVERSIDADE FEDERAL DE JUIZ DE FORA; CAMILA G. DE ALMEIDA; HUMBERTO DE MELLO BRANDAO, CNPGL; CELLY M. S. IZUMI, UNIVERSIDADE FEDERAL DE JUIZ DE FORA. | |
| Aparece en las colecciones: | Artigo em periódico indexado (CNPGL)  | |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| In-situ-Preparation-of-Silver-Nanoparticles-in-Polystyrene-b-poly.pdf | 985.02 kB | Adobe PDF |  Visualizar/Abrir |
