Please use this identifier to cite or link to this item:
Title: Membranes for specific adsorption : immobilizing molecularly imprinted polymer microspheres using electrospun nanofibers
Authors : Büttiker, Roman
Ebert, Jürgen
Hinderling, Christian
Adlhart, Christian
Published in : CHIMIA International Journal for Chemistry
Volume(Issue) : 65
Issue : 3
Pages : 182
Pages to: 186
Publisher / Ed. Institution : Swiss Chemical Society
Publisher / Ed. Institution: Bern
Issue Date: 1-Mar-2011
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subjects : ICBC; Molecularly imprinted polymer; Raman microscopy; Electrospinning; Filtration; Precipitation polymerization
Subject (DDC) : 620: Engineering
Abstract: Molecularly imprinted polymer microspheres were immobilized within a polymer nanofiber membrane by electrospinning. Such membranes simplify the handling of functional microspheres and provide specific recognition capabilities for solid-phase extraction and filtration applications. In this study, microspheres were prepared by precipitation polymerization of methacrylic acid and divinylbenzene as a cross-linker with the target molecule (-)-cinchonidine and then, they were electrospun into a non-woven polyacrylonitrile nanofiber membrane. The composite membrane showed specific affinity for (-)-cinchonidine which was attributed to the functional microspheres as confirmed by Raman microscopy. The target molecule capturing capacity of the composite membrane was 5 mg/g or 25 mg/g immobilized functional microsphere. No difference in target affinity was observed between the immobilized microspheres and the free microspheres. These results reveal that electrospun composite membranes are a feasible approach to immobilizing functional microspheres.
Departement: Life Sciences and Facility Management
Organisational Unit: Institute of Chemistry and Biotechnology (ICBT)
Publication type: Article in scientific Journal
DOI : 10.2533/chimia.2011.182
ISSN: 0009-4293
Appears in Collections:Publikationen Life Sciences und Facility Management

Files in This Item:
File Description SizeFormat 
2011_Adlhart_Membranes_for_Specific_Adsorption_Chimia.pdf394.1 kBAdobe PDFThumbnail

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.