Figure 1. Schematic of the proposed methodology for generation of three dimensional chemical patterns.

a–b) Schematic diagrams of conceptual spherical or cylindrical containers with uniform wall porosity. c) Further control over the shape and duration of the chemical distribution is afforded by selective patterning of the pores on the surface of the container. d–f) Schematic diagram of our proposed polyhedral containers that can be designed in a variety of shapes and sizes that approximate, for example, spherical or cylindrical containers. g–i) Precisely patterned 2D panels that can self-fold via surface tension forces into the polyhedral containers; numerical simulations guide pore designs.