High-resolution 3D photopolymerization assisted by upconversion nanoparticles for rapid prototyping applications

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dc.identifier.uri http://dx.doi.org/10.15488/3347
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/3377
dc.contributor.author Rocheva, Vasilina V.
dc.contributor.author Koroleva, Anastasia V.
dc.contributor.author Savelyev, Alexander G.
dc.contributor.author Khaydukov, Kirill V.
dc.contributor.author Generalova, Alla N.
dc.contributor.author Nechaev, Andrey V.
dc.contributor.author Guller, Anna E.
dc.contributor.author Semchishen, Vladimir A.
dc.contributor.author Chichkov, Boris
dc.contributor.author Khaydukov, Evgeny V.
dc.date.accessioned 2018-05-23T06:37:53Z
dc.date.available 2018-05-23T06:37:53Z
dc.date.issued 2018
dc.identifier.citation Rocheva, V.V.; Koroleva, A.V.; Savelyev, A.G.; Khaydukov, K.V.; Generalova, A.N. et al.: High-resolution 3D photopolymerization assisted by upconversion nanoparticles for rapid prototyping applications. In: Scientific Reports 8 (2018), Nr. 1, 3663. DOI: https://doi.org/10.1038/s41598-018-21793-0
dc.description.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 NaYF4:Yb3+,Tm3+/NaYF4, with the distinct ultraviolet-emitting lines and unprecedentedly high near-infrared to ultraviolet conversion efficiency of η UC UV=2% η UC (UV) = 2 % 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. eng
dc.language.iso eng
dc.publisher London : Nature Publishing Group
dc.relation.ispartofseries Scientific Reports 8 (2018), Nr. 1
dc.rights CC BY 4.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Three-dimensional (3D) rapid prototyping technology eng
dc.subject upconversion nanoparticles eng
dc.subject rapid prototyping applications eng
dc.subject.ddc 500 | Naturwissenschaften ger
dc.title High-resolution 3D photopolymerization assisted by upconversion nanoparticles for rapid prototyping applications
dc.type article
dc.type Text
dc.relation.issn 2045-2322
dc.relation.doi https://doi.org/10.1038/s41598-018-21793-0
dc.bibliographicCitation.issue 1
dc.bibliographicCitation.volume 8
dc.bibliographicCitation.firstPage 3663
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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