Fig. 7From: Fabrication of SA/Gel/C scaffold with 3D bioprinting to generate micro-nano porosity structure for skin wound healing: a detailed animal in vivo studySchematic diagram of the Organ Printing United System (OPUS) and printing process. The foremost part of the system has a computer-aided design system and a three-axis controller, including temperature, air pressure, mechanical control, and a cartridge unit loaded with bioinkBack to article page