Near-infrared photopolymerization assisted by upconversion nanophosphors for biomedical applications

Alexander G. Savelyev; Vladimir A. Semchishen; Andrey V. Nechaev; Kirill V. Khaydukov; Polina A. Demina; Alla N. Generalova; Evgeny V. Khaydukov

doi:10.1051/epjconf/201819004018

All issues

Volume 190 (2018)

EPJ Web Conf., 190 (2018) 04018

Abstract

Open Access

Issue		EPJ Web Conf. Volume 190, 2018 XIII International Conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications (HBSM-2018)


Article Number		04018
Number of page(s)		2
Section		Poster talks
DOI		https://doi.org/10.1051/epjconf/201819004018
Published online		26 September 2018

EPJ Web of Conferences 190, 04018 (2018)
https://doi.org/10.1051/epjconf/201819004018

Near-infrared photopolymerization assisted by upconversion nanophosphors for biomedical applications

Alexander G. Savelyev¹^,2^*, Vladimir A. Semchishen¹, Andrey V. Nechaev¹^,3, Kirill V. Khaydukov¹, Polina A. Demina¹^,4, Alla N. Generalova¹^,4 and Evgeny V. Khaydukov¹^,2

¹ Federal Scientific Research Centre “Crystallography and Photonics” of the Russian Academy of Sciences, 119333 Moscow, Russia
² Sechenov First Moscow State Medical University, 119991 Moscow, Russia
³ Institute of Fine Chemical Technologies, Moscow Technological University, 119571 Moscow, Russia
⁴ Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of Russian Academy of Sciences, 117197 Moscow, Russia

^* Corresponding author: a.g.savelyev@gmail.com

Published online: 26 September 2018

Abstract

We present the concept and the experimental demonstration of near-infrared photopolymerization assisted by specially designed upconversion nanophosphors. The principle of this technique is based on conversion of 980 nm laser irradiation to ultraviolet photons subsequently absorbed by photoinitiator. The nonlinearity of upconversion allows for activation of the process locally in the laser beam waist. This approach enables precise fabrication of 3D constructs directly in the volume of photocurable composition. Furthermore, the presented technique is suitable for polymerization of a wide range of photocurable resins as well as gelation of hydrogels for biomedical applications.

This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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