IIBBA 05544
INSTITUTO DE INVESTIGACIONES BIOQUIMICAS DE BUENOS AIRES
Unidad Ejecutora - UE
artículos
Título:
A Solid Reference System for Photosensitized 1O2 Production Measurements
Autor/es:
D. E. WETZLER; D. GARCÍA-FRESNADILLO; G. ORELLANA.
Revista:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Editorial:
RSC Journals
Referencias:
Lugar: Cambridge, UK; Año: 2006
ISSN:
1463-9076
Resumen:
The production of 1O2 via photosensitization by Methylene blue (MB) supported onto Nafion-Na films is characterized by measuring 1O2 emission at 1270 nm, as well as, using complementary techniques like UV- Visible absorption and emission, and fluorescence and triplet- triplet absorption decay. Quantum yield of 1O2 production (FD) of was determined in this heterogeneous system (FD = 0.24 ± 0.03). Results are compared with the1O2 generation by MB in solution and in methanol-swollen Nafion-Na films. Differences and similitudes are discussed in terms of factors that influence FD
