Garcia-Martinez, Javier, Brugarolas, Pedro, Domínguez Domínguez, Sonia
Ordered circular mesoporosity induced by phospholipids
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
URI: http://hdl.handle.net/10045/7728
DOI: 10.1016/j.micromeso.2006.09.046
ISSN: 1387-1811
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.
Keywords:Mesostructured materials, Mesoporous materials, Vesicular, MCM-41, Lecithin
Elsevier
info:eu-repo/semantics/article