Abstract
Gels, soft and wet materials, have unique properties such as material permeability, biocompatibility and low frictional properties, which are hardly found in hard and dry materials. These superior characteristics of hydrogels promise to expand the medical applications. In recent years, the optical 3-D gel printer named SWIM-ER (Soft and Wet Industrial - Easy Realizer) was developed by our team in order to fabricate tough gels with free form. Pregel solution is polymerized by one-point UV irradiation with optical fiber. The irradiate area is controlled by computer programing, so that 3-D the precise and free forming in XYZ directions is realized. In this study, synthesis conditions are re-examined in order to improve the freedom degree of fabrication. The dimensional accuracy in height direction is improved by increasing the cross linker concentration.
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