|
|
|||||||||||||||
|
Buscar | Enviar | Ayuda | Servicio de Bibliotecas | Sobre el DDD | Català English Español | |||||||||
| Página principal > Artículos > Artículos publicados > Lanthanide-organic framework nanothermometers prepared by spray-drying |
| Fecha: | 2015 |
| Resumen: | Accurate, noninvasive, and self-referenced temperature measurements at the submicrometer scale are of great interest, prompted by the ever-growing demands in the fields of nanotechnology and nanomedicine. The thermal dependence of the phosphor's luminescence provides high detection sensitivity and spatial resolution with short acquisition times in, e. g. , biological fluids, strong electromagnetic fields, and fast-moving objects. Here, it is shown that nanoparticles of [(Tb0. 914Eu0. 086)2(PDA)3(H2O)]·2H2O (PDA = 1,4-phenylenediacetic acid), the first lanthanide-organic framework prepared by the spray-drying method, are excellent nanothermometers operating in the solid state in the 10-325 K range (quantum yield of 0. 25 at 370 nm, at room temperature). Intriguingly, this system is the most sensitive cryogenic nanothermometer reported so far, combining high sensitivity (up to 5. 96 ± 0. 04% K-1 at 25 K), reproducibility (in excess of 99%), and low-temperature uncertainty (0. 02 K at 25 K). |
| Ayudas: | Ministerio de Economía y Competitividad MAT2012-30994 European Commission 615954 Ministerio de Economía y Competitividad SEV-2013-0295 |
| Derechos: | Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets. |
| Lengua: | Anglès |
| Documento: | Article ; recerca ; Versió acceptada per publicar |
| Materia: | MOFs ; Lanthanide ions ; Spray-drying ; Luminescence ; Nanothermometers |
| Publicado en: | Advanced functional materials, Vol. 25, Issue 19 (May 2015) , p. 2824-2830, ISSN 1616-3028 |
Postprint 23 p, 1.2 MB |