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Title: The role of membrane fluidization in the gel-assisted formation of giant polymersomes

Abstract

Polymersomes are being widely explored as synthetic analogs of lipid vesicles based on their enhanced stability and potential uses in a wide variety of applications in (e.g., drug delivery, cell analogs, etc.). Controlled formation of giant polymersomes for use in membrane studies and cell mimetic systems, however, is currently limited by low-yield production methodologies. Here, we describe for the first time, how the size distribution of giant poly(ethylene glycol)-poly(butadiene) (PEO-PBD) polymersomes formed by gel-assisted rehydration may be controlled based on membrane fluidization. We first show that the average diameter and size distribution of PEO-PBD polymersomes may be readily increased by increasing the temperature of the rehydration solution. Further, we describe a correlative relationship between polymersome size and membrane fluidization through the addition of sucrose during rehydration, enabling the formation of PEO-PBD polymersomes with a range of diameters, including giant-sized vesicles (>100 μm). This correlative relationship suggests that sucrose may function as a small molecule fluidizer during rehydration, enhancing polymer diffusivity during formation and increasing polymersome size. Altogether the ability to easily regulate the size of PEO-PBD polymersomes based on membrane fluidity, either through temperature or fluidizers, has broadly applicability in areas including targeted therapeutic delivery and synthetic biology.

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Martin-Luther-Univ., Halle-Wittenberg (Germany)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1291338
Report Number(s):
SAND-2016-7533J
Journal ID: ISSN 1932-6203; 646370
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Accepted Manuscript
Journal Name:
PLoS ONE
Additional Journal Information:
Journal Volume: 11; Journal Issue: 7; Journal ID: ISSN 1932-6203
Publisher:
Public Library of Science
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; polymers; vesicles; fluorescence recovery after photobleaching; sucrose; lipids; gel electrophoresis; mass diffusivity; membrane potential

Citation Formats

Greene, Adrienne C., Henderson, Ian M., Gomez, Andrew, Paxton, Walter F., VanDelinder, Virginia, Bachand, George D., and Hinderberger, Dariush. The role of membrane fluidization in the gel-assisted formation of giant polymersomes. United States: N. p., 2016. Web. doi:10.1371/journal.pone.0158729.
Greene, Adrienne C., Henderson, Ian M., Gomez, Andrew, Paxton, Walter F., VanDelinder, Virginia, Bachand, George D., & Hinderberger, Dariush. The role of membrane fluidization in the gel-assisted formation of giant polymersomes. United States. https://doi.org/10.1371/journal.pone.0158729
Greene, Adrienne C., Henderson, Ian M., Gomez, Andrew, Paxton, Walter F., VanDelinder, Virginia, Bachand, George D., and Hinderberger, Dariush. Wed . "The role of membrane fluidization in the gel-assisted formation of giant polymersomes". United States. https://doi.org/10.1371/journal.pone.0158729. https://www.osti.gov/servlets/purl/1291338.
@article{osti_1291338,
title = {The role of membrane fluidization in the gel-assisted formation of giant polymersomes},
author = {Greene, Adrienne C. and Henderson, Ian M. and Gomez, Andrew and Paxton, Walter F. and VanDelinder, Virginia and Bachand, George D. and Hinderberger, Dariush},
abstractNote = {Polymersomes are being widely explored as synthetic analogs of lipid vesicles based on their enhanced stability and potential uses in a wide variety of applications in (e.g., drug delivery, cell analogs, etc.). Controlled formation of giant polymersomes for use in membrane studies and cell mimetic systems, however, is currently limited by low-yield production methodologies. Here, we describe for the first time, how the size distribution of giant poly(ethylene glycol)-poly(butadiene) (PEO-PBD) polymersomes formed by gel-assisted rehydration may be controlled based on membrane fluidization. We first show that the average diameter and size distribution of PEO-PBD polymersomes may be readily increased by increasing the temperature of the rehydration solution. Further, we describe a correlative relationship between polymersome size and membrane fluidization through the addition of sucrose during rehydration, enabling the formation of PEO-PBD polymersomes with a range of diameters, including giant-sized vesicles (>100 μm). This correlative relationship suggests that sucrose may function as a small molecule fluidizer during rehydration, enhancing polymer diffusivity during formation and increasing polymersome size. Altogether the ability to easily regulate the size of PEO-PBD polymersomes based on membrane fluidity, either through temperature or fluidizers, has broadly applicability in areas including targeted therapeutic delivery and synthetic biology.},
doi = {10.1371/journal.pone.0158729},
journal = {PLoS ONE},
number = 7,
volume = 11,
place = {United States},
year = {Wed Jul 13 00:00:00 EDT 2016},
month = {Wed Jul 13 00:00:00 EDT 2016}
}

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Cited by: 26 works
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journal, May 1999


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journal, April 2016

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journal, December 2011

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  • International Journal of Molecular Sciences, Vol. 13, Issue 1
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Asymmetric Lipid Membranes: Towards More Realistic Model Systems
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