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Planar Block Copolymer Membranes by Vesicle Spreading

✍ Scribed by Jan Dorn; Serena Belegrinou; Max Kreiter; Eva-Kathrin Sinner; Wolfgang Meier

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
870 KB
Volume
11
Category
Article
ISSN
1616-5187

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✦ Synopsis

Abstract

An easy route to planar solid‐supported polymer membranes by vesicle spreading is described. Pre‐organized poly(butadiene)__‐block‐__poly(ethylene oxide)(PB‐PEO) assemblies were spread on two different supports, i.e. strongly hydrophilic glass surfaces and ultrasmooth gold substrates. Polymer membranes were produced on a hydrophilic support by spreading hydroxyl‐functionalized polymer vesicles, while covalently immobilized polymer membranes were obtained by spreading LA‐functionalized polymer vesicles on gold substrates. Covalently bound membranes were further incubated with the peptide polymyxin B. Interactions with the polymer membrane were detected by EIS. These systems are of great interest to fundamental membrane science and have potential in technological applications, such as drug screening and (bio)sensing. magnified image

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