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|1. (WO2017034022) ENCAPSULATED FORMULATION AND STRUCTURE|
|Title:||ENCAPSULATED FORMULATION AND STRUCTURE|
Provided is an encapsulated formulation comprising a central portion 1 and a shell portion 2 that covers the surface of the central portion 1. The central portion 1 includes a material that expands in the presence of a liquid, and the shell portion 2 includes a material that can induce expansion of the central portion 1 in response to the liquid.