Tuning and controlling the shape of mesoporous silica particles with CTAB/sodium deoxycholate catanionic mixtures
| Autor: | Luisa De Cola, Pierre Picchetti, Leana Travaglini, Luciano Galantini, Alessandra Del Giudice |
|---|---|
| Přispěvatelé: | Institut de Science et d'ingénierie supramoléculaires (ISIS), Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Morphology (linguistics)
Materials science 02 engineering and technology General Chemistry Mesoporous silica bile salts catanionic mixtures mesoporous silica particles morphology tuning 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Micelle Rod 0104 chemical sciences Chemical engineering Pulmonary surfactant Mechanics of Materials Particle [CHIM]Chemical Sciences General Materials Science 0210 nano-technology Porosity Sodium Deoxycholate |
| Zdroj: | Microporous and Mesoporous Materials Microporous and Mesoporous Materials, Elsevier, 2019, 279, pp.423-431. ⟨10.1016/j.micromeso.2019.01.030⟩ |
| ISSN: | 1387-1811 |
| DOI: | 10.1016/j.micromeso.2019.01.030⟩ |
| Popis: | Controlling the shape and size of mesoporous silica particles (MSPs) requires a deep understanding of the different parameters that play a major role during the synthesis of the materials. One of the key factors that can determine the morphology and porosity of the systems is the surfactant, used as a templating agent. We have very recently proven that binary mixtures of hexadecyltrimethylammonium bromide (CTAB) and bile salts are templating systems effective in controlling the morphology of MSPs in a facile and non-costly way. In this work we investigated the effect of different surfactant ratios in order to gain deeper insights on the influence of these catanionic mixtures on particle morphology. We employed mixtures of CTAB and sodium deoxycholate (NaDC) and upon variation of a sole parameter, the NaDC concentration, we achieved shape tuning. Hexagonal platelets, rods, oblate and toroidal particles were obtained and fully characterized. Moreover, investigation of the CTAB/NaDC assemblies showed that the morphology tuning is related to the evolution of the mixed micelles properties, occurring upon variation of the surfactant ratio. |
| Databáze: | OpenAIRE |
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