On the distinct molecular architectures of dipping- and spray-LbL films containing lipid vesicles
(2014) In Materials Science and Engineering C 41. p.363-371- Abstract
The introduction of spraying procedures to fabricate layer-by-layer (LbL) films has brought new possibilities for the control of molecular architectures and for making the LbL technique compliant with industrial processes. In this study we show that significantly distinct architectures are produced for dipping and spray-LbL films of the same components, which included DODAB/DPPG vesicles. The films differed notably in their thickness and stratified nature. The electrical response of the two types of films to aqueous solutions containing erythrosin was also different. With multidimensional projections we showed that the impedance for the DODAB/DPPG spray-LbL film is more sensitive to changes in concentration, being therefore more... (More)
The introduction of spraying procedures to fabricate layer-by-layer (LbL) films has brought new possibilities for the control of molecular architectures and for making the LbL technique compliant with industrial processes. In this study we show that significantly distinct architectures are produced for dipping and spray-LbL films of the same components, which included DODAB/DPPG vesicles. The films differed notably in their thickness and stratified nature. The electrical response of the two types of films to aqueous solutions containing erythrosin was also different. With multidimensional projections we showed that the impedance for the DODAB/DPPG spray-LbL film is more sensitive to changes in concentration, being therefore more promising as sensing units. Furthermore, with surface-enhanced Raman scattering (SERS) we could ascribe the high sensitivity of the LbL films to adsorption of erythrosin.
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- author
- Aoki, Pedro H.B. ; Alessio, Priscila ; Volpati, Diogo LU ; Paulovich, Fernando V. ; Riul, Antonio ; Oliveira, Osvaldo N. and Constantino, Carlos J.L.
- publishing date
- 2014-08-01
- type
- Contribution to journal
- publication status
- published
- keywords
- Erythrosin, Information visualization, Layer-by-layer films, Molecular architecture, Sensing
- in
- Materials Science and Engineering C
- volume
- 41
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:84901252195
- pmid:24907772
- ISSN
- 0928-4931
- DOI
- 10.1016/j.msec.2014.04.067
- language
- English
- LU publication?
- no
- id
- 9f5051fb-2aed-4b0b-8fc1-136abf7df765
- date added to LUP
- 2019-05-17 14:34:52
- date last changed
- 2024-04-02 05:00:47
@article{9f5051fb-2aed-4b0b-8fc1-136abf7df765,
abstract = {{<p>The introduction of spraying procedures to fabricate layer-by-layer (LbL) films has brought new possibilities for the control of molecular architectures and for making the LbL technique compliant with industrial processes. In this study we show that significantly distinct architectures are produced for dipping and spray-LbL films of the same components, which included DODAB/DPPG vesicles. The films differed notably in their thickness and stratified nature. The electrical response of the two types of films to aqueous solutions containing erythrosin was also different. With multidimensional projections we showed that the impedance for the DODAB/DPPG spray-LbL film is more sensitive to changes in concentration, being therefore more promising as sensing units. Furthermore, with surface-enhanced Raman scattering (SERS) we could ascribe the high sensitivity of the LbL films to adsorption of erythrosin.</p>}},
author = {{Aoki, Pedro H.B. and Alessio, Priscila and Volpati, Diogo and Paulovich, Fernando V. and Riul, Antonio and Oliveira, Osvaldo N. and Constantino, Carlos J.L.}},
issn = {{0928-4931}},
keywords = {{Erythrosin; Information visualization; Layer-by-layer films; Molecular architecture; Sensing}},
language = {{eng}},
month = {{08}},
pages = {{363--371}},
publisher = {{Elsevier}},
series = {{Materials Science and Engineering C}},
title = {{On the distinct molecular architectures of dipping- and spray-LbL films containing lipid vesicles}},
url = {{http://dx.doi.org/10.1016/j.msec.2014.04.067}},
doi = {{10.1016/j.msec.2014.04.067}},
volume = {{41}},
year = {{2014}},
}