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

Borello, L. ; Onida, B. ; Barolo, C. ; Edler, K. J. LU orcid ; Areán, C. Otero and Garrone, E. (2004) New Materials and Technologies in Sensor Applications, Proceedings In Sensors and Actuators, B: Chemical 100(1-2). p.107-111
Abstract

Two CTABr-silica 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.

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author
; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
keywords
Dye, Hybrid material, Ordered mesophase
in
Sensors and Actuators, B: Chemical
volume
100
issue
1-2
pages
5 pages
publisher
Elsevier
conference name
New Materials and Technologies in Sensor Applications, Proceedings
conference location
Strasbourg, France
conference dates
2003-06-10 - 2003-06-13
external identifiers
  • scopus:2342535088
ISSN
0925-4005
DOI
10.1016/j.snb.2003.12.030
language
English
LU publication?
no
id
1a863223-58d8-4869-9f1d-47fcf212c675
date added to LUP
2023-05-04 18:32:01
date last changed
2023-06-13 09:50:46
@article{1a863223-58d8-4869-9f1d-47fcf212c675,
  abstract     = {{<p>Two CTABr-silica 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 NH<sub>3</sub> and HCl in gas phase, notwithstanding the presence of micelles in the mesophase, which results to be fully permeable to such molecules.</p>}},
  author       = {{Borello, L. and Onida, B. and Barolo, C. and Edler, K. J. and Areán, C. Otero and Garrone, E.}},
  issn         = {{0925-4005}},
  keywords     = {{Dye; Hybrid material; Ordered mesophase}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{1-2}},
  pages        = {{107--111}},
  publisher    = {{Elsevier}},
  series       = {{Sensors and Actuators, B: Chemical}},
  title        = {{Accessibility of dye molecules embedded in surfactant-silica hybrid materials in both powder and film forms}},
  url          = {{http://dx.doi.org/10.1016/j.snb.2003.12.030}},
  doi          = {{10.1016/j.snb.2003.12.030}},
  volume       = {{100}},
  year         = {{2004}},
}