Accessibility of dye molecules embedded in surfactant-silica hybrid materials in both powder and film forms

L Borello; B Onida; C Barolo; K J Edler; C O Arean; E Garrone

doi:10.1016/j.snb.2003.12.030

Accessibility of dye molecules embedded in surfactant-silica hybrid materials in both powder and film forms

L Borello, B Onida, C Barolo, K J Edler, C O Arean, E Garrone

Department of Chemistry

Research output: Contribution to journal › Article

10 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	107-111
Number of pages	5
Journal	Sensors and Actuators B-Chemical
Volume	100
Issue number	1-2
DOIs	https://doi.org/10.1016/j.snb.2003.12.030
Publication status	Published - 2004

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Borello, L., Onida, B., Barolo, C., Edler, K. J., Arean, C. O., & Garrone, E. (2004). Accessibility of dye molecules embedded in surfactant-silica hybrid materials in both powder and film forms. Sensors and Actuators B-Chemical, 100(1-2), 107-111. https://doi.org/10.1016/j.snb.2003.12.030

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abstract = "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.",

author = "L Borello and B Onida and C Barolo and Edler, {K J} and Arean, {C O} and E Garrone",

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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

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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

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JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

SN - 0925-4005

IS - 1-2

ER -

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10.1016/j.snb.2003.12.030