Artículos de revistas
Photostable, Oxygen-sensitive Optical Probe Based On A Homonuclear Terbium(iii) Complex Covalently Bound To Functionalized Polydimethylsiloxane
Registro en:
Photostable, Oxygen-sensitive Optical Probe Based On A Homonuclear Terbium(iii) Complex Covalently Bound To Functionalized Polydimethylsiloxane. Wiley-v C H Verlag Gmbh, v. 80, p. 1721-1724 DEC-2015.
2192-6506
WOS:000368592800004
10.1002/cplu.201500296
Autor
Gaspar
Rafael D. L.; Monteiro
Jorge H. S. K.; Raimundo
Ivo M.
Jr.; Mazali
Italo O.; Sigoli
Fernando A.
Institución
Resumen
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) A new oxygen-sensitive optical probe based on the [Tb(3,5-dcba) 3]center dot 1/2H(2)O (3,5-dcba = 3,5-dichlorobenzoate) complex, which is chemically attached to a phosphine-oxide-functionalized polydimethylsiloxane is presented. The hybrid material shows green emission and transparency in the visible range. The optically sensitive probe is photostable under excitation at 350 nm and shows the highest oxygen sensitivity, I-0/I-100 equal to 8.9 at 1 atm, among probes based on homonuclear lanthanide compounds. Furthermore its reversibility is demonstrated after several cycles ranging from 100% N-2 to 100% O-2 with response time of 8.5 s (N-2 -> O-2) and recovery time of 49.5 s (O-2 -> N-2). 80 12
1721 1724 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)