Fig. 3.

Different type of bioprinting technique. (A) laser-based bioprinter use laser focused on an absorbing substrate to generate pressures that forward transfer cell-containing materials onto a collector substrate. (B) droplet-based bioprinting use either thermal or acoustic mechanism to dispense bioink droplet akin to typical inkjet printer. (C) extrusion-based bioprinting utilize pneumatic of mechanical (piston or screw) to dispense continuous bioink filament. Adapted with permission from [88]. Copyright (2013), John Wiley and Sons.