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  Surfactant-free production of biomimetic giant unilamellar vesicles using PDMS-based microfluidics

Yandrapalli, N., Petit, J., Bäumchen, O., & Robinson, T. (2021). Surfactant-free production of biomimetic giant unilamellar vesicles using PDMS-based microfluidics. Communications Chemistry, 4: 100. doi:10.1038/s42004-021-00530-1.

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 Creators:
Yandrapalli, Naresh1, Author           
Petit, Julien, Author
Bäumchen, Oliver, Author
Robinson, Tom1, Author           
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1Tom Robinson, Theorie & Bio-Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2288691              

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 Abstract: Microfluidic production of giant lipid vesicles presents a paradigm-shift in the development of artificial cells. While production is high-throughput and the lipid vesicles are mono-disperse compared to bulk methods, current technologies rely heavily on the addition of additives such as surfactants, glycerol and even ethanol. Here we present a microfluidic method for producing biomimetic surfactant-free and additive-free giant unilamellar vesicles. The versatile design allows for the production of vesicle sizes ranging anywhere from ~10 to 130 µm with either neutral or charged lipids, and in physiological buffer conditions. Purity, functionality, and stability of the membranes are validated by lipid diffusion, protein incorporation, and leakage assays. Usability as artificial cells is demonstrated by increasing their complexity, i.e., by encapsulating plasmids, smaller liposomes, mammalian cells, and microspheres. This robust method capable of creating truly biomimetic artificial cells in high-throughput will prove valuable for bottom-up synthetic biology and the understanding of membrane function.

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Language(s): eng - English
 Dates: 2021-06-292021
 Publication Status: Issued
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Title: Communications Chemistry
Source Genre: Journal
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Publ. Info: London : Springer Nature
Pages: - Volume / Issue: 4 Sequence Number: 100 Start / End Page: - Identifier: ISSN: 2399-3669

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Title: bioRxiv
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Publ. Info: Cold Spring Harbor : Cold Spring Harbor Laboratory
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