[10a-N321-1~11] 3.7 Laser processing

[10a-N321-10] Photo-initiator Free Two-photon Fabrication of Biomaterials for 3D Nano-fabrication

〇Atsushi Nakayama^1,2, Yasuaki Kumamoto¹, Atsushi Taguchi³, Katsumasa Fujita^1,2 (1.Osaka Univ., 2.Photo-BIO Lab, AIST-Osaka Univ., 3.Hokkaido Univ.)

Keywords:two-photon fabrication, 3D nano-fabrication, biomaterials

Two-photon fabrication, which utilizes photochemical reactions caused by two-photon absorption, is expected to be used in the fabrication of biological tissues for regenerative medicine and drug discovery because it enables nano-sized 3D fabrication. In this study, we performed two-photon fabrication using only biocompatible materials as raw materials and evaluated the properties of the obtained three-dimensional structures. By using visible light as the excitation light, the biocompatible material can be directly excited. Three-dimensional nanofabrication was achieved without the use of additives, which has been a challenge for biological applications.