Assembly of Modular Tissue Structure of Micro-Fibers Using Magnetic Force and Capillary Force

This paper proposes a 3D assembly method of aligned fiber-structure such as a human skeletal muscle tissue. The innovative point is assembly method of fiber-structure consists of artificial modular micro-fibers. The magnetite particles are included inside of both ends of micro-fibers for “Assembly”, “Positioning” and “Fixation” of micro-fibers, while the capillary force is also used to bundle several fibers tightly. Several different kinds of fibers are fabricated and assembled to form the tissue like structure. In this paper, the muscle fiber and sensor fiber, which has spherical microsensors inside, are used for demonstration of the proof of our concept. After the assembly, the micro-fibers were successfully fused to form a tissue like structure with highly arranged cells, where the microsensors could be used to monitor the inner state of the tissue.