TY - JOUR
T1 - Accessibility of dye molecules embedded in surfactant-silica hybrid materials in both powder and film forms
AU - Borello, L
AU - Onida, B
AU - Barolo, C
AU - Edler, K J
AU - Arean, C O
AU - Garrone, E
N1 - ID number: ISI:000221680300018
PY - 2004
Y1 - 2004
N2 - Two CTABr-sifica mesophases have been prepared, one of them as a powder with hexagonal structure containing Congo Red, the other one as a film with cubic structure containing Disperse Red 1. In the former case the dye has been occluded via co-entrapping, whereas in the latter it has been covalently anchored to the silica matrix via a co-condensation route. In both systems, the dye molecules proved to be accessible to NH3 and HCl in gas phase, notwithstanding the presence of micelles in the mesophase, which results to be fully permeable to such molecules. (C) 2004 Elsevier B.V. All rights reserved.
AB - Two CTABr-sifica mesophases have been prepared, one of them as a powder with hexagonal structure containing Congo Red, the other one as a film with cubic structure containing Disperse Red 1. In the former case the dye has been occluded via co-entrapping, whereas in the latter it has been covalently anchored to the silica matrix via a co-condensation route. In both systems, the dye molecules proved to be accessible to NH3 and HCl in gas phase, notwithstanding the presence of micelles in the mesophase, which results to be fully permeable to such molecules. (C) 2004 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.snb.2003.12.030
DO - 10.1016/j.snb.2003.12.030
M3 - Article
VL - 100
SP - 107
EP - 111
JO - Sensors and Actuators B: Chemical
JF - Sensors and Actuators B: Chemical
SN - 0925-4005
IS - 1-2
ER -