Device and method for generating droplets

A device (1) for generating droplets (30) of a dispersed phase (D) in a continuous phase (C), comprising a plurality of channels (20), wherein each channel (20) comprises an inlet (201) and an outlet (202), and wherein each channel (20) extends from said inlet (201) along a respective longitudinal axis (L) to said outlet (202), so that droplets (30) of a dispersed phase (D) can be generated in a continuous phase (C) at said outlets (202) when a flow of said dispersed phase (D) from said inlets (201) to said outlets (202) is provided and said outlets (202) are in flow connection with a reservoir or conduit containing said continuous phase (C),

• characterized in that
• said device (1) comprises a plurality of layers (10) of a substrate material arranged in a stack (100), wherein each layer (10) comprises a first side (101) and a second side (102), wherein the first side (101) faces away from the second side (102), and wherein the first side (101) of each layer (10) comprises a plurality of grooves (103), wherein the grooves (103) of each first side (101) are covered by a second side (102) of an adjacent layer (10), such that said plurality of channels (20) is formed, wherein the inlets (201) are arranged on a front side (104) of the stack (100) and the outlets (202) are arranged on an opposing back side (105) of the stack (100), wherein each of the channels (20) comprises a nozzle (21) ending with the respective outlet (202), the outlet (202) comprising a first maximum cross sectional extension (e1) of the nozzle (21), and wherein the respective channel (20) comprises a second cross-sectional extension (e2) adjacent the respective nozzle (21), wherein said first maximum cross-sectional extension (e1) is larger than said second cross-sectional extension (e2).