We present a novel approach for fabricating celloidosomes{\textregistered}, which represent a hollow and spherical three-dimensional self-assembly of living cells encapsulating an aqueous core. Glass- capillary microfluidics is used to generate monodisperse water-in-oil-in-water double emulsion templates using lipids as stabilizers. Such templates allow for obtaining single but also double concentric celloidosomes. In addition, after a solvent removal step the double emulsion templates turn into monodisperse lipid vesicles, whose membrane spontaneously phase separates when choosing the adequate lipid composition, providing the adequate scaffold for fabricating Janus-celloidosomes. These structures may find applications in the development of bioreactors in which the synergistic effects of two different types of cells selectively adsorbed on one of the vesicle hemispheres may be exploited.
*Laura R. Arriaga would like to thank Real Colegio Complutense for finnancial support
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Authors
Laura R. Arriaga
Department of Physics and Division of Engineering and Applied Science, Harvard University, Cambridge, MA 02138
Samantha M. Marquez
Maggie L. Walker Governor's School, 1000N. Lombardy St. Richmond, VA 23220
Shin-Hyun Kim
Harvard University
Department of Physics and Division of Engineering and Applied Science, Harvard University, Cambridge, MA 02138
Connie Chang
Department of Physics and Division of Engineering and Applied Science, Harvard University, Cambridge, MA 02138
Harvard University
Jim Wilking
Department of Physics and Division of Engineering and Applied Science, Harvard University, Cambridge, MA 02138
Francisco Monroy
Department of Physical Chemistry, Complutense University, 28040 Madrid, Spain
Manuel Marquez
YNano LLC 14148 Riverdowns S. Dr. Midlothian, VA 23113
David Weitz
Harvard University
Department of Physics and Division of Engineering and Applied Science, Harvard University, Cambridge, MA 02138
School of Engineering and Applied Sciences, Harvard University
Department of Physics, Harvard University, Cambridge, MA, United States
Department of Physics and School of Engineering and Applied Sciences, Harvard University, Cambridge, MA