Fabricate coaxial stacked nerve conduits through soft lithography and molding processes.
In this article we present a new way to fabricate nerve conduits with various multi-channels patterns by microfabrication. Soft lithography was used to manufacture silicon-based structures and replicate them with PDMS for producing nerve conduit subunit molds. After that, 3% chitosan/acetic acid solution was filled into PDMS molds and then hardened and peeled off. Nerve conduit subunits were fabricated repeatedly by a set of methods for mass production. Afterward, a plurality of conduit subunits stacked coaxially and coated with outer membrane to form the whole nerve conduit. Because of the precise capability of soft lithography, it is well-suited for nerve conduits with complex designs, such as a combination of multiple degradation control and drug delivery system. Besides, the miniaturization and batch processes are serviceable to the economic effect and the utilization in industry.
Wang
De-Yao
DY
Institute of Biomedical Engineering, College of Engineering, College of Medicine, National Taiwan University, Taiwan, Republic of China.
Huang
Yi-You
YY
D019342:Acetic Acid / Q000737:chemistry; D001672:Biocompatible Materials / Q000737:chemistry*; D048271:Chitosan / Q000737:chemistry; D004129:Dimethylpolysiloxanes / Q000737:chemistry*; D048091:Guided Tissue Regeneration; D009416:Nerve Regeneration; D009757:Nylons / Q000737:chemistry*; D010525:Peripheral Nerves
D001672:Biocompatible Materials; D004129:Dimethylpolysiloxanes; D009757:Nylons; C085707:poly(dimethylsiloxane)-polyamide copolymer; D048271:Chitosan; D019342:Acetic Acid