DNA-Origami-Templated Growth of Multilamellar Lipid Assemblies

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Lipids are important building blocks in cellular compartments, and therefore their self-assembly into well-defined hierarchical structures has gained increasing interest. Cationic lipids and unstructured DNA can co-assemble into highly ordered structures (lipoplexes), but potential applications of lipoplexes are still limited. Using scaffolded DNA origami nanostructures could aid in resolving these drawbacks. Here, we have complexed DNA origami together with a cationic lipid 1,2-dioleoly-3-trimethylammonium-propane (DOTAP) and studied their self-assembly driven by electrostatic and hydrophobic interactions. The results suggest that the DNA origami function as templates for the growth of multilamellar lipid structures and that the DNA origami are embedded in the formed lipid matrix. Furthermore, the lipid encapsulation was found to significantly shield the DNA origami against nuclease digestion. The presented complexation strategy is suitable for a wide range of DNA-based templates and could therefore find uses in construction of cell-membrane-associated components.

Original languageEnglish
Number of pages8
JournalAngewandte Chemie
DOIs
Publication statusE-pub ahead of print - 9 Nov 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • DNA origami
  • electrostatic interactions
  • lipids
  • nanostructures
  • self-assembly
  • INVERTED HEXAGONAL PHASE
  • GENE DELIVERY
  • IN-VIVO
  • NANOSTRUCTURES
  • COMPLEXES
  • LIPOPLEXES
  • PROTECTION
  • EFFICIENCY
  • STABILITY
  • BINDING

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