Micro- and Bio-Rapid Prototyping Using Drop-On-Demand 3D Printing

Rapid prototyping or referred as layered manufacturing has been widely used in fabricating 3D components from CAD data. It has evolved from liquid, plastic, powder to metal-based systems in the past two decades. Recently, 3D printing using polymeric material has caught much attention in many industry applications including in microand bio-fabrication due to its advantage of layer manufacturing. In this chapter, drop-on-demand (DoD) printing will be specially discussed. Among those, the novel electrohydrodynamic jet printing (E-jetting) and piezo-actuated micro-dispensing methods will be described in details. Their applications to biomedical engineering – e.g., PCL scaffolding, HA bioactive multilayered coating, and cell printing – will be presented to demonstrate its potentials. J.Y.H. Fuh (*) • J. Sun • E.Q. Li • J. Li • L. Chang • G.S. Hong • Y.S. Wong • E.S. Thian Department of Mechanical Engineering, National University of Singapore, Singapore e-mail: mpefuhyh@nus.edu.sg # Springer-Verlag London 2015 A.Y.C. Nee (ed.), Handbook of Manufacturing Engineering and Technology, DOI 10.1007/978-1-4471-4670-4_79 2567

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