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Mesostructured fatty acid-tethered silicas: sustaining the order by co-templating with bulky precursors.
MedLine Citation:
PMID:  23138359     Owner:  NLM     Status:  Publisher    
The co-condensation of functional alkoxysilanes with tetraethoxysilane in the presence of a structure directing agent under sol-gel process chemistry is a common way to access functional organosilica with an ordered mesostructure. In this report, bulky silylated fatty acid methyl esters were used both as co-templating bio-molecules and functionalizing agents in the process of supra-molecular silica mineralization. The highest structural regularity in terms of pore size distribution and channel size homogeneity was observed for carboxy-tethered silica possessing SBA-15-type architecture due to an enhanced fatty acid precursor-surfactant interaction. The carboxylic surface embedded within the hydrophobic environment of the fatty compounds confers to these materials interesting reactive-surface properties with promising applications as drug-delivery systems and bio-catalytic nanoreactors.
Abdelkrim El Kadib; Nadia Katir; Annie Finiels; Annie Castel; Nathalie Marcotte; Karine Molvinger; Christine Biolley; Philippe Gaveau; Mosto Bousmina; Daniel Brunel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-9
Journal Detail:
Title:  Dalton transactions (Cambridge, England : 2003)     Volume:  -     ISSN:  1477-9234     ISO Abbreviation:  Dalton Trans     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101176026     Medline TA:  Dalton Trans     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Institute of Nanomaterials and Nanotechnology (iNANOTECH), Moroccan Foundation for Advanced Science, Innovation and Research (MAScIR), ENSET, Avenue de l'Armée Royale, Madinate Al Irfane, Rabat, Morocco.
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