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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Curr Opin Cell Biol. 2013 Nov 12;0:60–68. doi: 10.1016/j.ceb.2013.10.001

Figure 1.

Figure 1

Types of biological boundary conditions and approaches to control or monitor them experimentally. Imposed, embedded, and interfacial boundary conditions each present unique constraints that, when incorporated into reconstitution experiments, can enable more accurate reproductions of the cellular environment.