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Wavelength-optimized Two-Photon Polymerization Using Initiators Based on Multipolar Aminostyryl-1,3,5-triazines.
Tromayer, Maximilian; Gruber, Peter; Rosspeintner, Arnulf; Ajami, Aliasghar; Husinsky, Wolfgang; Plasser, Felix; González, Leticia; Vauthey, Eric; Ovsianikov, Aleksandr; Liska, Robert.
Afiliación
  • Tromayer M; Institute of Applied Synthetic Chemistry, TU Wien (Technische Universitaet Wien), Getreidemarkt 9/163/MC, 1060, Vienna, Austria.
  • Gruber P; Austrian Cluster for Tissue Regeneration (www.tissue-regeneration.at), Vienna, Austria.
  • Rosspeintner A; Institute of Materials Science and Technology, TU Wien (Technische Universitaet Wien), Getreidemarkt 9/308, 1060, Vienna, Austria.
  • Ajami A; Austrian Cluster for Tissue Regeneration (www.tissue-regeneration.at), Vienna, Austria.
  • Husinsky W; Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211, Geneva 4, Switzerland.
  • Plasser F; Faculty of Physics, Semnan University, 35131-19111, Semnan, Iran.
  • González L; Institute of Applied Physics, TU Wien (Technische Universitaet Wien), Wiedner Hauptstrasse 8-10/134, 1040, Vienna, Austria.
  • Vauthey E; Institute for Theoretical Chemistry, Faculty of Chemistry, University of Vienna, Waehringerstrasse 17, 1090, Vienna, Austria.
  • Ovsianikov A; Institute for Theoretical Chemistry, Faculty of Chemistry, University of Vienna, Waehringerstrasse 17, 1090, Vienna, Austria.
  • Liska R; Department of Physical Chemistry, University of Geneva, 30 Quai Ernest Ansermet, CH-1211, Geneva 4, Switzerland.
Sci Rep ; 8(1): 17273, 2018 Nov 22.
Article en En | MEDLINE | ID: mdl-30467346
Two-photon induced polymerization (2PP) based 3D printing is a powerful microfabrication tool. Specialized two-photon initiators (2PIs) are critical components of the employed photosensitive polymerizable formulations. This work investigates the cooperative enhancement of two-photon absorption cross sections (σ2PA) in a series of 1,3,5-triazine-derivatives bearing 1-3 aminostyryl-donor arms, creating dipolar, quadrupolar and octupolar push-pull systems. The multipolar 2PIs were successfully prepared and characterized, σ2PA were determined using z-scan at 800 nm as well as spectrally resolved two-photon excited fluorescence measurements, and the results were compared to high-level ab initio computations. Modern tunable femtosecond lasers allow 2PP-processing at optimum wavelengths tailored to the absorption behavior of the 2PI. 2PP structuring tests revealed that while performance at 800 nm is similar, at their respective σ2PA-maxima the octupolar triazine-derivative outperforms a well-established ketone-based quadrupolar reference 2PI, with significantly lower fabrication threshold at exceedingly high writing speeds up to 200 mm/s and a broader window for ideal processing parameters.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2018 Tipo del documento: Article País de afiliación: Austria Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2018 Tipo del documento: Article País de afiliación: Austria Pais de publicación: Reino Unido