Y-Type Diamond Interaction Chamber (DIXC) is used to produce uniform nanoparticles in a high pressure homogenizer. The fixed geometry within the Y-Type DIXC is intended to create a uniform processing profile so that all materials will be processed with equal disruptive forces. Single-slotted interaction chambers have a single microchannel and are ideal choices for small batch research, while the multi-slotted interaction chamber comprises multiple microchannels in parallel, which can be used at industrial scales, by increasing the flow rate through the DIXC but with equal processing forces.