New Journal - Molecular Imprinting (opens in new window)

mips logo Go to mipdatabase.com Search this site:
Custom(Search)
Reference type: Journal
Authors: Lofgreen JE, Moudrakovski IL, Ozin GA
Article Title: Molecularly Imprinted Mesoporous Organosilica.
Publication date: 2011
Journal: ACS Nano
Volume: 5
Issue: (3)
Page numbers: 2277-2287.
DOI: 10.1021/nn1035697

Abstract: We have prepared molecularly imprinted mesoporous organosilica (MIMO) using a semicovalent imprinting technique. A thermally reversible covalent bond was used to link a bisphenol A (BPA) imprint molecule to a functional alkoxysilane monomer at two points to generate a covalently bound imprint precursor. This precursor was incorporated into a cross-linked periodic mesoporous silica matrix via a typical acid-catalyzed, triblock copolymer-templated, sol - gel synthesis. Evidence of imprint sites buried in the pore walls was found through careful characterization of the imprinted material and its comparison to similarly prepared non-imprinted mesoporous organosilica (NIMO) and pure periodic mesoporous silica (PMS). After thermal treatment, the imprinted material (MIMO-ir) removed more than 90% of appropriately sized bisphenol species from water, yet showed significantly lower binding for both smaller and larger molecules containing phenol moieties. Identically treated NIMO-ir showed much poorer retention behavior than MIMO-ir for the same bisphenol species and behaved only slightly better than PMS-ir
Template and target information: bisphenol A, BPA

Featured products

 

SMI mug blue tiled

 

SMI logo postcard orange gradient

 

SMI logo mousepad green