Photoinitiator-free micro/nano fabrication of biomaterials with nonlinear deep UV excitation

Atsushi Nakayama; Yasuaki Kumamoto; Atsushi Taguchi; Katsumasa Fujita

doi:10.1117/12.2608630

5 March 2022 Photoinitiator-free micro/nano fabrication of biomaterials with nonlinear deep UV excitation

Atsushi Nakayama, Yasuaki Kumamoto, Atsushi Taguchi, Katsumasa Fujita

Proceedings Volume 12012, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XV; 1201203 (2022) https://doi.org/10.1117/12.2608630
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Two-photon fabrication is expected to be a technique for fabricating biological tissues for regenerative medicine and drug discovery because of its capability of fabricating 3D structures on a subcellular scale. In this study, we conducted two-photon fabrication of biocompatible materials without photoinitiators. By using a visible-wavelength femtosecond pulsed laser as excitation light, two-photon polymerization is induced in deep UV absorbing moieties without the use of photo-initiators. We performed 3D micro/nanofabrication of a biocompatible hydrogel material. By using Raman spectral change, we investigated the photo-chemical process of the biocompatible upon the irradiation of visible pulsed laser light.

Conference Presentation

Citation Download Citation

Atsushi Nakayama, Yasuaki Kumamoto, Atsushi Taguchi, and Katsumasa Fujita "Photoinitiator-free micro/nano fabrication of biomaterials with nonlinear deep UV excitation", Proc. SPIE 12012, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XV, 1201203 (5 March 2022); https://doi.org/10.1117/12.2608630

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available