Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-1551
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
Language : Englisch / English
Subjects : ICBC; Molecularly imprinted polymer; Raman microscopy; Electrospinning; Filtration; Precipitation polymerization
Subject (DDC) : 620: Ingenieurwesen
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 und Facility Management
Organisational Unit: Institut für Chemie und Biotechnologie (ICBT)
Publication type: Beitrag in wissenschaftlicher Zeitschrift / Article in scientific Journal
DOI : 10.2533/chimia.2011.182
10.21256/zhaw-1551
ISSN: 0009-4293
URI: https://digitalcollection.zhaw.ch/handle/11475/2083
Appears in Collections:Publikationen Life Sciences und Facility Management

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