Figure 2: Diagram of the search engine system.
From: Discovery of gigantic molecular nanostructures using a flow reaction array as a search engine

The exploration of the combinatorial space was based on running five different sets of experiments (a–e), using a common batch of stock solutions of the building blocks. The search approach in the experiments was based on changing ratio between C4 and C5 (a); between Mo and W (b); between Mo and C5 (c); finally, a three-component variation between Mo, {Mo2}2+ and potassium source/medium (d and e) was also used.