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. Author manuscript; available in PMC: 2012 Mar 7.
Published in final edited form as: Angew Chem Int Ed Engl. 2011 Feb 17;50(11):2549–2553. doi: 10.1002/anie.201007107

Figure 2. Generation of 3D spatial patterns by varying container shape.

Figure 2

a) An idealized illustration of a conical gradient. b) Schematic of a single triangular panel with pores enclosed in a wedge-shaped area that was found in numerical simulations to generate a linear gradient along its length. c) Experimental realization of the gradient using a pyramid-shaped container with triangular faces patterned according to b). d) Plot of the experimentally measured chemical concentration (thick black line) compared with the numerical calculation (thin gray line) along the dashed line shown in (c). e) A magnified optical image of the container used to generate the conical gradient pattern. f) Triangular prism-shaped containers with two different lengths. The inset illustrates the 2D geometry of interconnected panels.