Nowadays, additive manufacturing of thermoplastic polymers has produced great interest in microfluidics. 3D printing of thermoplastic polymers (such as ABS, PLA, PS, PC, PMMA, and PET) via different techniques including fused deposition modelling and inkjet printing offers several advantages such as simplicity, low cost, usually high speed, more versatility and freedom in complex channels design, and elimination of the need for bonding steps in some cases .