Membrane Manipulation of Giant Unilamellar Polymer Vesicles with a Temperature-Responsive Polymer

Angew Chem Int Ed Engl. 2022 Sep 26;61(39):e202207998. doi: 10.1002/anie.202207998. Epub 2022 Aug 23.

Abstract

Understanding the complex behavior and dynamics of cellular membranes is integral to gain insight into cellular division and fusion processes. Bottom-up synthetic cells are as a platform for replicating and probing cellular behavior. Giant polymer vesicles are more robust than liposomal counterparts, as well as having a broad range of chemical functionalities. However, the stability of the membrane can prohibit dynamic processes such as membrane phase separation and division. Here, we present a method for manipulating the membrane of giant polymersomes using a temperature responsive polymer. Upon elevation of temperature deformation and phase separation of the membrane was observed. Upon cooling, the membrane relaxed and became homogeneous again, with infrequent division of the synthetic cells.

Keywords: Biomimetic Membranes; Block Copolymers; Membrane Manipulation; Phase Separation; Polymersomes.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Artificial Cells*
  • Phase Transition
  • Polymers
  • Temperature
  • Unilamellar Liposomes*

Substances

  • Polymers
  • Unilamellar Liposomes