Ordered circular mesoporosity induced by phospholipids

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Title: Ordered circular mesoporosity induced by phospholipids
Authors: Garcia-Martinez, Javier | Brugarolas, Pedro | Domínguez Domínguez, Sonia
Research Group/s: Nanotecnología Molecular
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica
Keywords: Mesostructured materials | Mesoporous materials | Vesicular | MCM-41 | Lecithin
Knowledge Area: Química Inorgánica
Date Created: Jul-2006
Issue Date: Nov-2006
Publisher: Elsevier
Citation: GARCÍA MARTÍNEZ, Javier; BRUGAROLAS, Pedro; DOMÍNGUEZ DOMÍNGUEZ, Sonia. “Ordered circular mesoporosity induced by phospholipids”. Microporous and Mesoporous Materials. Vol. 100, Issues 1-3 (23 March 2007). ISSN 1387-1811, pp. 63-69
Abstract: Circular mesoporous materials with different geometries have been prepared by surfactant-templated sol–gel synthesis involving the condensation of tetraethylortosilicate (TEOS) under basic conditions. In this study, cetyltrimethylamonium bromide (CTAB) has been used as a surfactant and controlled amounts of L-a-phosphatidylcholine (lecithin) as a co-surfactant. For small concentrations of lecithin, the obtained materials retain the hexagonal pore ordering characteristic of MCM-41, as evidenced by X-ray diffraction and electron microscopy. However, the channels are no longer straight and parallel but circular and concentric. At higher concentrations of lecithin, vesicular silica was produced.
Sponsor: This work was sponsored by the Universidad de Alicante, the Generalitat Valenciana and the Ministerio de Educación y Ciencia de España.
URI: http://hdl.handle.net/10045/7728
ISSN: 1387-1811
DOI: 10.1016/j.micromeso.2006.09.046
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.micromeso.2006.09.046
Appears in Collections:INV - NANOMOL - Artículos de Revistas

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