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research article

Functional surface engineering by nucleotide-modulated potassium channel insertion into polymer membranes attached to solid supports

Kowal, Justyna L.
•
Kowal, Julia K.
•
Wu, Dalin
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August 1, 2014
Biomaterials

Planar solid-supported membranes based on amphiphilic block copolymers represent promising systems for the artificial creation of structural surfaces. Here we introduce a method for engineering functional planar solid-supported membranes through insertion of active biomolecules. We show that membranes based on poly(dimethylsiloxane)-block-poly(2-methyl-2-oxazoline) (PDMS-b-PMOXA) amphiphilic diblock copolymers, which mimic natural membranes, are suitable for hosting biomolecules. Our strategy allows preparation of large-area, well-ordered polymer bilayers via Langmuir-Blodgett and Langmuir-Schaefer transfers, and insertion of biomolecules by using Bio-Beads. We demonstrate that a model membrane protein, the potassium channel from the bacterium Mesorhizobium loti, remains functional after insertion into the planar solid-supported polymer membrane. This approach can be easily extended to generate a platform of functional solid-supported membranes by insertion of different hydrophobic biomolecules, and employing different types of solid substrates for desired applications. (C) 2014 Elsevier Ltd. All rights reserved.

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Type
research article
DOI
10.1016/j.biomaterials.2014.05.043
Author(s)
Kowal, Justyna L.
Kowal, Julia K.
Wu, Dalin
Stahlberg, Henning  orcid-logo
Palivan, Cornelia G.
Meier, Wolfgang P.
Date Issued

2014-08-01

Publisher

Elsevier BV

Published in
Biomaterials
Volume

35

Issue

26

Start page

7286

End page

7294

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LBEM  
Available on Infoscience
February 13, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/165433
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