Figure 1.

Schematic demonstration of the microfluidic device for shape-controlled synthesis of hybrid nanomaterials by 3D-HF. The isocurve shows the focusing of reagent A, and the slices show the concentration distribution of reagent B. While keeping the flow rates of reagents A and B constant and changing the flow rates of buffers C and D, the concentration distribution within the microfluidic channel varies, and the synthesized products show different morphologies. For the first set of experiments, TTF solution was injected as reagent A and HAuCl₄ solution as reagent B. At low buffer flow rate, the synthesized materials show hexagonal shape. As the buffer flow rate increases, flower-like aggregates can be obtained.