Melt-based Electrohydrodynamic Bioprinting:: Heating Unit, Ambient Control, and Power Module Control

To understand the melt-based electrohydrodynamic (EHD) bioprinting, fabrication process related parameters such as melting temperature of the EHD ink solution and environmental factors within the fabrication chamber requires careful consideration and comprehensive experiments. The main purpose of this paper is to study the control of the heating and melting process of ink solutions, and environmental factors (temperature and humidity). Besides, a power module control unit is proposed to cut off the high voltage module output under abnormal conditions. These designs and testing can improve the current EHD scaffold printing system, which will be very helpful for stable scaffold fabrication in tissue engineering.