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Proceedings Paper

Modeling the transparent shape memory gels by 3D printer Acculas
Author(s): Hiroaki Kumagai; Masanori Arai; Jin Gong; Kazuyuki Sakai; Masaru Kawakami; Hidemitsu Furukawa
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Paper Abstract

In our group, highly transparent shape memory gels were successfully synthesized for the first time in the world. These gels have the high strength of 3MPs modulus even with the water content of 40wt% water and high transparency. We consider that these highly transparent and high strength gels can be applied to the optical devices such as intraocular-lenses and optical fibers. In previous research by our group, attempts were made to manufacture the gel intraocular-lenses using highly transparent shape memory gels. However, it was too difficult to print the intraocular-lens finely enough. Here, we focus on a 3D printer, which can produce objects of irregular shape. 3D printers generally we fused deposition modeling (FDM), a stereo lithography apparatus (SLA) and selective laser sintering (SLS). Because highly transparent shape memory gels are gelled by light irradiation, we used 3D printer with stereo lithography apparatus (SLA). In this study, we found the refractive index of highly transparent shape memory gels depend on monomer concentration, and does not depend on the cross-linker or initiator concentration. Furthermore, the cross-linker and initiator concentration can change the gelation progression rate. As a result, we have developed highly transparent shape memory gels, which can have a range of refractive indexes, and we defined the optimal conditions that can be modeling in the 3D printer by changing the cross-linker and initiator concentration. With these discoveries we were able to produce a gel intraocular-lens replica.

Paper Details

Date Published: 16 April 2016
PDF: 6 pages
Proc. SPIE 9802, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2016, 98020K (16 April 2016); doi: 10.1117/12.2218236
Show Author Affiliations
Hiroaki Kumagai, Yamagata Univ. (Japan)
Masanori Arai, Yamagata Univ. (Japan)
Jin Gong, Yamagata Univ. (Japan)
Kazuyuki Sakai, Yamagata Univ. (Japan)
Masaru Kawakami, Yamagata Univ. (Japan)
Hidemitsu Furukawa, Yamagata Univ. (Japan)

Published in SPIE Proceedings Vol. 9802:
Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2016
Vijay K. Varadan, Editor(s)

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