Collapse of a Lipid-coated Nanobubble and Subsequent Liposome Formation

Overview

Journal Sci Rep

Specialty Science

Date 2016 Jun 17

PMID 27306704

Citations 8

Authors

Kenichiro Koshiyama

Shigeo Wada

Affiliations

Soon will be listed here.

Abstract

We investigate the collapse of a lipid-coated nanobubble and subsequent formation of a lipid vesicle by coarse grained molecular dynamics simulations. A spherical nanobubble coated with a phospholipid monolayer in water is a model of an aqueous dispersion of phospholipids under negative pressure during sonication. When subjected to a positive pressure, the bubble shape deforms into an irregular spherical shape and the monolayer starts to buckle and fold locally. The local folds grow rapidly in multiple directions and forming a discoidal membrane with folds of various amplitudes. Folds of small amplitude disappear in due course and the membrane develops into a unilamellar vesicle via a bowl shape. Folds with large amplitude develop into a bowl shape and a multivesicular shape forms. The membrane shape due to bubble collapse can be an important factor governing the vesicular shape during sonication.

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