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Microfluidic generation of droplet interface bilayer networks incorporating real-time size sorting in linear and non-linear configurations
Authors:P. Carreras  R. V. Law  N. Brooks  J. M. Seddon  O. Ces
Affiliation:Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
Abstract:In this study, a novel droplet based microfluidic method for the generation of different sized droplet interface bilayers is reported. A microfluidic platform was designed, which allows the generation and packing of picoliter lipid coated water droplets. Droplets were generated by hydrodynamic focusing coupled with selective transport along grooves according to their size. A trapping structure at the end of the groove and a fine control of the flow pressures allowed for the droplets to be successfully trapped and aligned on demand. This technology facilitates the fine control of droplet size production as well as the generation of extended networks from a variety of lipids including 1,2-diphytanoyl-sn-glycero-3-phosphocholine and 1,2-dioleoyl-sn-glycero-3-phosphocholine in linear and non-linear configurations, which is vital to the application of Droplet Interface Bilayers to biological network construction on-chip.
Keywords:
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