Magnetic mesoporous silica-based (mmps) materials
AssigneesUniversite De Bourgogne, Centre National De La Recherche Scientifique
InventorsFrédéric BOUYER, Laroussi CHAABANE
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Abstract
The invention relates to a method for preparing a magnetic mesoporous silica-based (MMS) material, said method comprising the steps of: i) functionalising the silanol (—SiOH) groups of a mesoporous silica-based material by covalently grafting a ligand (L) comprising, at at least one end, a zwitterionic group of formula (I), in particular which is capable of complexing superparamagnetic particles: where n is an integer equal to 3 or 4; ii) incorporating superparamagnetic ferrite (MFe2O4NP) particles within the mesoporous material, by means of which a magnetic mesoporous silica-based (MMS) material is obtained.
Claims18
A method for preparing a magnetic mesoporous silica-based (MMPS) material, said method comprising the steps of:
- i) functionalizing silanol groups (—SiOH) of a mesoporous silica-based material via covalent grafting of a ligand (L) comprising, at least at one end thereof, a zwitterionic group of formula (I), to complex superparamagnetic particles:
- where n is an integer of 3 or 4;
- and
- ii) incorporating superparamagnetic ferrite particles (MFe2O4NP with M a metal) in the mesoporous material, whereby a magnetic mesoporous silica-based (MMPS) material is obtained.
Dependencies are inferred from the claim text.