Interaction of Anionic Bulk Nanobubbles with Cationic Liposomes: Evidence for Reentrant Condensation

Langmuir : the ACS Journal of Surfaces and Colloids
Minmin Zhang, Serge G Lemay

Abstract

We investigated the interaction of bulk nanobubbles with cationic liposomes composed of 1,2-dioleoyl- sn-glycero-3-ethylphosphocholine and anionic liposomes assembled from 1-palmitoyl-2-oleoyl- sn-glycero-3-phospho-(1'- rac-glycerol). We employed dynamic light scattering and fluorescence microscopy to investigate both the hydrodynamic and electrophoretic properties of the nanobubble/liposome complexes. These optical techniques permit direct visualization of structural changes as a function of the bubble/liposome ratio. We observed reentrant condensation with cationic liposomes and gas nucleation with anionic liposomes. This is the first report of charge inversion and reentrant condensation of cationic liposomes induced by bulk nanobubbles.

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Citations

Jan 31, 2020·Frontiers in Chemistry·Da-Yuan WangLinqi Shi
Mar 3, 2021·Journal of Applied Microbiology·Yi Wang

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Methods Mentioned

BETA
transfection
dynamic
fluorescence microscopy
electrophoresis

Software Mentioned

Zetasizer

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