期刊
REPORTS ON PROGRESS IN PHYSICS
卷 82, 期 6, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-6633/ab052b
关键词
active emulsions; liquid phase separation; droplet ripening in concentration gradients; positioning of droplets; driven chemical reactions in emulsions; suppression of Ostwald-ripening
资金
- German Research Foundation (DFG)
Phase separating systems that are maintained away from thermodynamic equilibrium via molecular processes represent a class of active systems, which we call active emulsions. These systems are driven by external energy input, for example provided by an external fuel reservoir. The external energy input gives rise to novel phenomena that are not present in passive systems. For instance, concentration gradients can spatially organise emulsions and cause novel droplet size distributions. Another example are active droplets that are subject to chemical reactions such that their nucleation and size can be controlled, and they can divide spontaneously. In this review, we discuss the physics of phase separation and emulsions and show how the concepts that govern such phenomena can be extended to capture the physics of active emulsions. This physics is relevant to the spatial organisation of the biochemistry in living cells, for the development of novel applications in chemical engineering and models for the origin of life.
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