Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 3663 |
| Fachzeitschrift | Scientific reports |
| Jahrgang | 8 |
| Publikationsstatus | Veröffentlicht - 26 Feb. 2018 |
Abstract
Three-dimensional (3D) rapid prototyping technology based on near-infrared light-induced polymerization of photocurable compositions containing upconversion nanomaterials has been explored. For this aim, the rationally-designed core/shell upconversion nanoparticles NaYF 4:Yb 3+,Tm 3+/NaYF 4, with the distinct ultraviolet-emitting lines and unprecedentedly high near-infrared to ultraviolet conversion efficiency of [Formula: see text] have been used. The upconverted ultraviolet photons were capable to efficiently activate photoinitiators contained in light-sensitive resins under moderate intensities of NIR excitation below 10 W cm -2 and induce generation of radicals and photopolymerization in situ. Near infrared-activated polymerization process, both at the millimeter and sub-micron scales, was investigated. Polymeric macro- and microstructures were fabricated by means of near infrared laser scanning photolithography in the volume of liquid photocurable compositions with focused laser light at 975 nm wavelength. Examination of the polymerization process in the vicinity of the nanoparticles shows strong differences in the rate of polymer shell growth on flat and edge nanoparticle sides. This phenomenon mainly defines the resolution of the demonstrated near infrared - ultraviolet 3D printing technology at the micrometer scale level.
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in: Scientific reports, Jahrgang 8, 3663, 26.02.2018.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - High-resolution 3D photopolymerization assisted by upconversion nanoparticles for rapid prototyping applications
AU - Rocheva, Vasilina V.
AU - Koroleva, Anastasia V.
AU - Savelyev, Alexander G.
AU - Khaydukov, Kirill V.
AU - Generalova, Alla N.
AU - Nechaev, Andrey V.
AU - Guller, Anna E.
AU - Semchishen, Vladimir A.
AU - Chichkov, Boris N.
AU - Khaydukov, Evgeny V.
N1 - Funding information: The authors would like to acknowledge Prof. Vladislav Panchenko (Federal Scientific Research Centre “Crystallography and Photonics”) for helpful discussion of the results and Dr. Oleg Lebedev (Universite Caen, Laboratoire CRISMAT) for nanoparticle TEM analysis. This scientific work has been supported by Grants RSF No. 16-13-10528 (in the part of UCNP synthesis and characterization, polymerization in the vicinity of UCNP), No. 17-19-01416 (in the part of 3D polymeric structure formation).
PY - 2018/2/26
Y1 - 2018/2/26
N2 - Three-dimensional (3D) rapid prototyping technology based on near-infrared light-induced polymerization of photocurable compositions containing upconversion nanomaterials has been explored. For this aim, the rationally-designed core/shell upconversion nanoparticles NaYF 4:Yb 3+,Tm 3+/NaYF 4, with the distinct ultraviolet-emitting lines and unprecedentedly high near-infrared to ultraviolet conversion efficiency of [Formula: see text] have been used. The upconverted ultraviolet photons were capable to efficiently activate photoinitiators contained in light-sensitive resins under moderate intensities of NIR excitation below 10 W cm -2 and induce generation of radicals and photopolymerization in situ. Near infrared-activated polymerization process, both at the millimeter and sub-micron scales, was investigated. Polymeric macro- and microstructures were fabricated by means of near infrared laser scanning photolithography in the volume of liquid photocurable compositions with focused laser light at 975 nm wavelength. Examination of the polymerization process in the vicinity of the nanoparticles shows strong differences in the rate of polymer shell growth on flat and edge nanoparticle sides. This phenomenon mainly defines the resolution of the demonstrated near infrared - ultraviolet 3D printing technology at the micrometer scale level.
AB - Three-dimensional (3D) rapid prototyping technology based on near-infrared light-induced polymerization of photocurable compositions containing upconversion nanomaterials has been explored. For this aim, the rationally-designed core/shell upconversion nanoparticles NaYF 4:Yb 3+,Tm 3+/NaYF 4, with the distinct ultraviolet-emitting lines and unprecedentedly high near-infrared to ultraviolet conversion efficiency of [Formula: see text] have been used. The upconverted ultraviolet photons were capable to efficiently activate photoinitiators contained in light-sensitive resins under moderate intensities of NIR excitation below 10 W cm -2 and induce generation of radicals and photopolymerization in situ. Near infrared-activated polymerization process, both at the millimeter and sub-micron scales, was investigated. Polymeric macro- and microstructures were fabricated by means of near infrared laser scanning photolithography in the volume of liquid photocurable compositions with focused laser light at 975 nm wavelength. Examination of the polymerization process in the vicinity of the nanoparticles shows strong differences in the rate of polymer shell growth on flat and edge nanoparticle sides. This phenomenon mainly defines the resolution of the demonstrated near infrared - ultraviolet 3D printing technology at the micrometer scale level.
UR - http://www.scopus.com/inward/record.url?scp=85043280026&partnerID=8YFLogxK
U2 - 10.1038/s41598-018-21793-0
DO - 10.1038/s41598-018-21793-0
M3 - Article
C2 - 29483519
AN - SCOPUS:85043280026
VL - 8
JO - Scientific reports
JF - Scientific reports
SN - 2045-2322
M1 - 3663
ER -