期刊
LAB ON A CHIP
卷 18, 期 17, 页码 2665-2674出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8lc00582f
关键词
-
类别
资金
- European Research Council [294852]
- Federal Ministry of Education and Research of Germany
- Max Planck Society
- German Science Foundation [SFB 1129]
- VolkswagenStiftung
- Alexander von Humboldt Foundation
- European Union [792270]
- European Research Council (ERC) [294852] Funding Source: European Research Council (ERC)
- Marie Curie Actions (MSCA) [792270] Funding Source: Marie Curie Actions (MSCA)
In this manuscript, we introduce a simple, off-the-shelf approach for the on-demand creation of giant unilamellar vesicles (GUVs) or multicompartment synthetic cell model systems in a high-throughput manner. To achieve this, we use microfluidics to encapsulate small unilamellar vesicles in block-copolymer surfactant-stabilized water-in-oil droplets. By tuning the charge of the inner droplet interface, adsorption of lipids can be either inhibited, leading to multicompartment systems, or induced, leading to the formation of droplet-stabilized GUVs. To control the charge density, we formed droplets using different molar ratios of an uncharged PEG-based fluorosurfactant and a negatively-charged PFPE carboxylic acid fluorosurfactant (Krytox). We systematically studied the transition from a multicompartment system to 3D-supported lipid bilayers as a function of lipid charge and Krytox concentration using confocal fluorescence microscopy, cryo-scanning electron microscopy and interfacial tension measurements. Moreover, we demonstrate a simple method to release GUVs from the surfactant shell and the oil phase into a physiological buffer - providing a remarkably high-yield approach for GUV formation. This widely applicable microfluidics-based technology will increase the scope of GUVs as adaptable cell-like compartments in bottom-up synthetic biology applications and beyond.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据