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Polymers 2016, 8(12), 439; doi:10.3390/polym8120439

Applications of Solid-State NMR Spectroscopy for the Study of Lipid Membranes with Polyphilic Guest (Macro)Molecules

Institut für Physik—NMR, Martin-Luther-Universität Halle-Wittenberg, D-06120 Halle, Germany
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Academic Editor: Alexander Böker
Received: 8 November 2016 / Revised: 1 December 2016 / Accepted: 8 December 2016 / Published: 16 December 2016
(This article belongs to the Special Issue From Amphiphilic to Polyphilic Polymers)
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Abstract

The incorporation of polymers or smaller complex molecules into lipid membranes allows for property modifications or the introduction of new functional elements. The corresponding molecular-scale details, such as changes in dynamics or features of potential supramolecular structures, can be studied by a variety of solid-state NMR techniques. Here, we review various approaches to characterizing the structure and dynamics of the guest molecules as well as the lipid phase structure and dynamics by different high-resolution magic-angle spinning proton and 13C NMR experiments as well as static 31P NMR experiments. Special emphasis is placed upon the incorporation of novel synthetic polyphilic molecules such as shape-persistent T- and X-shaped molecules as well as di- and tri-block copolymers. Most of the systems studied feature dynamic heterogeneities, for instance those arising from the coexistence of different phases; possibilities for a quantitative assessment are of particular concern. View Full-Text
Keywords: lipid membranes; lipid–polymer composites; solid-state NMR spectroscopy; order parameter lipid membranes; lipid–polymer composites; solid-state NMR spectroscopy; order parameter
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Bärenwald, R.; Achilles, A.; Lange, F.; Ferreira, T.M.; Saalwächter, K. Applications of Solid-State NMR Spectroscopy for the Study of Lipid Membranes with Polyphilic Guest (Macro)Molecules. Polymers 2016, 8, 439.

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