| Texto completo | |
| Autor(es): |
Santos, Moliria V.
[1, 2]
;
Maturi, Fernando E.
[1, 2]
;
Pecoraro, Edison
[1]
;
Barud, Hernane S.
[3]
;
Lima, Lais R.
[1]
;
Ferreira, Rute A. S.
[2]
;
Carlos, Luis D.
[2]
;
Ribeiro, Sidney J. L.
[1]
Número total de Autores: 8
|
| Afiliação do(s) autor(es): | [1] Sao Paulo State Univ UNESP, Inst Chem, Araraquara, SP - Brazil
[2] Univ Aveiro, CICECO Aveiro Inst Mat, Dept Phys, Aveiro - Portugal
[3] Univ Araraquara, Biopolymers & Biomat Lab, Araraquara, SP - Brazil
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY; v. 9, MAR 30 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
Photonic materials featuring simultaneous iridescence and light emission are an attractive alternative for designing novel optical devices. The luminescence study of a new optical material that integrates light emission and iridescence through liquid crystal self-assembly of cellulose nanocrystal-template silica approach is herein presented. These materials containing Rhodamine 6G were obtained as freestanding composite films with a chiral nematic organization. The scanning electron microscopy confirms that the cellulose nanocrystal film structure comprises multi-domain Bragg reflectors and the optical properties of these films can be tuned through changes in the relative content of silica/cellulose nanocrystals. Moreover, the incorporation of the light-emitting compound allows a complementary control of the optical properties. Overall, such findings demonstrated that the photonic structure plays the role of direction-dependent inner-filter, causing selective suppression of the light emitted with angle-dependent detection. (AU) | |
| Processo FAPESP: | 14/12424-2 - Propriedades ópticas de suspensões coloidais e filmes à base de nanoceluloses e lantanídeos |
| Beneficiário: | Moliria Vieira dos Santos |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |
| Processo FAPESP: | 16/11591-8 - Microestruturação com lasers de femtossegundos em biopolímeros de celulose e fibroína: fabricação de dispositivos fotônicos |
| Beneficiário: | Moliria Vieira dos Santos |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |