| Texto completo | |
| Autor(es): |
Lima, Karmel de Oliveira
[1, 2]
;
dos Santos, Luiz Fernando
[2]
;
de Melo, Maryanne Trafani
[3]
;
Tedesco, Antonio Claudio
[3]
;
Goncalves, Rogeria Rocha
[2]
;
Gredin, Patrick
[1, 4]
;
Mortier, Michel
[1]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] PSL Res Univ, CNRS, ChimieParisTech, Inst Rech Chim Paris, F-75005 Paris - France
[2] Univ Sao Paulo, Lab Mat Luminescentes Micro & Nanoestruturados Ma, Dept Quim, FFCLRP, BR-14040901 Ribeirao Preto, SP - Brazil
[3] Univ Sao Paulo, Fac Philosophy Sci & Letters Ribeirao Preto, Photobiol & Photomed Res Grp, Dept Chem, Ctr Nanotechnol & Tissue Engn, BR-14040901 Ribeirao Preto, SP - Brazil
[4] Sorbonne Univ, Fac Sci & Ingn, F-75005 Paris - France
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MATERIALS TODAY COMMUNICATIONS; v. 28, SEP 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
Highly colloidal luminescent nanoparticles (NPs) 5 at% Er3+, 20 at% Yb3+:KY3F10 were prepared by EDTA assisted hydrothermal method. Spherical and monodispersed Er3+, Yb3+:KY3F10 nanoparticles with highly pure cubic phase exhibit attractive optical properties for their use in long-term biological studies because of the high chemical photo-stability and strong emissions in the visible and near infrared (NIR) regions. The luminescence spectra of Er3+, Yb3+:KY3F10 as dried powder and dispersed in physiologic medium show intense green upconversion emission transition in between 510 and 570 nm (H-2(11/2)-> I-4(15/2) and S-4(3/2)-> I-4(15/2)) and red upconversion emission transition in between 635 and 680 nm (F-4(9/2)-> I-4(15/2)) under NIR light excitation (980 nm). The cellular nontoxicity of as-prepared Er3+, Yb3+ codoped KY3F10 to glioblastoma multiforme (GBM) cells, were reported for the first time to our knowledge. This nanomaterial shows potential use for theranostic applications in early detection of brain cancer, acting as biomarkers in the visible and NIR ranges, and as drug activators for some photobiological response as a coadjuvant therapy for cancer treatment, such as photodynamic therapy (PDT). (AU) | |
| Processo FAPESP: | 18/18213-4 - Síntese de nanomateriais luminescentes multifuncionais à base de fluoretos e óxidos dopados com íons terras raras para aplicação em Teranóstica |
| Beneficiário: | Karmel de Oliveira Lima |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 20/05319-9 - Plataformas multifuncionais a base de materiais nanoestruturados luminescentes dopados com íons lantanídeos com potencial aplicação em fotônica e teranóstica |
| Beneficiário: | Rogéria Rocha Gonçalves |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 17/11301-2 - Materiais luminescentes micro e nanoestruturados dopados com terras raras: propriedades e aplicações |
| Beneficiário: | Rogéria Rocha Gonçalves |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |