journal article·2021Open access

Amphiphilic nanoparticles generate curvature in lipid membranes and shape liposome–liposome interfaces

E. Lavagna, Z. P. Güven, D. Bochicchio, F. Olgiati, F. Stellacci, G. Rossi

Nanoscale· Volume 13· Issue 40

Abstract

We show by molecular dynamics that amphiphilic Au nanoparticles (NP) with a diameter of 4 nm generate curvature in phosphatidylcholine lipid membranes. NPs generate negative curvature when they adsorb on the membrane surface but, as they get spontaneously and progressively embedded into the membrane core, the curvature turns positive. As membrane embedding is kinetically slow, both configurations can be observed by Cryo-EM. NP-induced curvature explains the peculiar structure of liposome-liposome interfaces in presence of NPs.
Source: openalex_inverted_index · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Lipid Membrane Structure and Behavior · Supramolecular Self-Assembly in Materials · Force Microscopy Techniques and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Physics Department, University of Genoa, Via Dodecaneso 33, 16146 Genoa, Italy

Institute of Materials and Bioengineering Institute, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland

Funding

H2020 European Research Council · Università degli Studi di Genova

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