Generation of porous solids with well-controlled morphologies by combining foaming and flow chemistry on a Lab-on-a-Chip

► We show how millifluidic technique can be used to construct versatile Labs-on-a-Chip. ► Bubble generation and flow chemistry are efficiently combined to generate porous solids. ► We obtain porous materials with highly monodisperse and ordered pore structures. ► We demonstrate the efficiency of our technique for the example of porous polymers and particle foams.